BEST video for this repair PERIOD. I'm a certified tech and some of these videos are a joke lol, but you nailed it from start to finish brother! THANKS! 👊
Excellent video. Thank you for making this. I just replaced my injectors, and I have some insights to add. First, before you remove the valve cover bolt that holds the fuel line to the head, you must remove the oil filler cap and pull up on the plastic cover over the coils and valve cover. This gives you easier access to the bolt. Second, there are four “Christmas trees” holding the wiring harness to the back of the intake manifold, and they are stubborn. Just be patient and use a tool such as the one he uses in the video. Third and most importantly, a lot of dirt and debris can collect around the injectors, so before you undo the fuel lines and remove the injectors, cover your intake ports, breathers, throttle body opening, etc, and then use a blower nozzle to blow air around the injectors. A lot of dust and sand flew out when I did this. Then remove the fuel lines and cap them. Pry up the injectors just a little bit, and blow around them one more time. This should remove any debris that might fall into your combustion chambers. At that point, you can safely remove your injectors. One last thing: the first thing to do in this job is to pull the fuel pump fuse and run the motor until it dies. This depressurizes the fuel system.
Yuma AZ 2015 Gmc denali Xl Yukon Replacing all 8 injectors Valve cover gaskets Fuel service All done at the gm dealer $3,000 I used your video at the dealership and mechanics said THIS GUY KNOWS HIS SHIT!!!!! They legitimately all searched your video and saved it. Thank you!!!!
You’re a life saver. Dealership quoted me at $2800 to change 1 fuel injector, $3300 for all 8. Found a company going out of business selling a set of 8 for $109. Replaced all 8 and no more misfire/ cold start rough idle code. Thank you for your step by step.
@@blake102989 yeah they said it would take them 17 hours, have to keep the truck overnight and everything. Took me 2 hours using hand tools and a chair to stand on (trucks lifted) in my driveway.. alone. I even changed all the gaskets on the way back out just for good measure. Total cost was around $200 to change all 8 (got lucky with the price tbh). But even if I had to pay $500 for all 8 injectors it would have been a bargain compared to what they were asking.
@@sirdumbthicc4294 if it takes them 17 hours they need to just close up shop and find a different career path because being a mechanic is not for them lol. I would’ve filed attempted rape charges on them for that kind of robbery they’re tryin to pull 😂 im glad you were able to get it done yourself though. I will do anything I can myself because if you want it done right, do it yourself lol
@@blake102989 yeah it’s crazy. I know they go off the manufacturer recommended time, but you know they would have taken every minute of that time. No way they would have got it done in 2 hours and been like “you’re on your way”.
My L86 6.2L 2017 Denali has 250,788 miles on the original injectors, before getting my 1st misfire in #7 cyl. With that being said I use 11 oz, of Lucas Upper cylinder lubricant and injector cleaner every 2nd or third gas tank fill up. I also still have AFM working almost like new. Due to using new Royal Purple Oil every 4500 miles and a good Oil filter which AFM survives by. Chris is the man for teaching DIYers what must be done to get us moving forward smoothly again. I'm now expecting a fuel injector seal leak after checking for a collaped lifter that was still moving the rocker arms. Thanks Chris
that part at 8:48 where the rail seems to hop up, making it easier for the mechanic to loosen and pull the rail is pure sorcery. Still waiting for mine to self-adjust ..
Chris, thanks for doing this video! I just replaced all my injectors on my 2017 Tahoe and doing it myself saved me a lot of money. I was a strait forward repair if you follow this video and my Tahoe runs great now. I suggest to others that are reading this comment to make sure you use INCH pounds not FOOT pounds for the manifold bolts. Chris clearly says this in the video but could easily overlooked if you don't listen closely. Thanks again Chris!
@@timothysteadham331 I used genuine GM injectors. I removed an injector and then used the number printed on the injector to match the new ones. I paid more but I knew they were the exact parts.
Took four and half hours. I cannot thank you enough for this tutorial. I have a 4.3 liter engine so it was not as bad reaching to the back bolts. Those connectors on the other hand, I think I sprained both index finger and thumb on each hand trying to et those off! Thanks again, runs sooo much better.
Very straight forward instruction. My injector rail was so stuck it took an 2500# engine lift to free it. (2014, 5.3, 87k miles) P050d and p300 codes. No ticking but rough idle.
Great video, thanks! I'm getting the P0301 and P0300 codes, so I immediately replaced the #1 plug and swapped the #1 & #3 coils to ensure coils and cables are fine (seemed to work). After clearing the code and running it, it showed me the P0300 code along with a cold start code. I'm not seeing #1 misfires on the live data, and the #2 cylinder is misfiring continuously while some of the others are misfiring occasionally, such as #7 (Still need to change the remaining 6 plugs tomorrow morning). I changed the #2 spark plug and coil, and I checked that I'm getting power to the plug with another test, though I may check the plug again to be sure. Before I go further, the 2018 Tahoe was running fine up to this point and on the way to the gas station, the check engine light came on and stayed on while I felt the power go away and the nightmare begin. This to me seems like a sudden failure of something, so I thought maybe the #2 fuel injector is bad since I already replaced the #1 and #2 plugs & cables with the #2 coil, leaving the fuel injuector (am I missing something?). Looking at the live data on the car scanner tool (iphone app), all other parameters seemed reasonable with a reading with no extreme values indicating a short or something, except for the engine oil pressure sensor that is reading 0 psi...I then read that having low oil pressure can throw the P0300 code, so I'm now thinking it may have to do with that, because here's the other part. I replaced all 8 fuel injectors by watching your video, and it was very straight forward! (I couldn't get the christmas tree on the back of the intake manifold as it was hard to reach and I heard it fall down...Is that a problem to have the harness loose back there?). That didn't fix the problem for me and #2 still misfires with the ocassional ones from #7, with lots of white smoke from the exhaust. The strange thing I'm also noticing is that the live data is showing #2 continously misfiring while the history counter is showing #1 adding up very fast while the #2 history shows 0 (I'm now thinking there may be something wrong with the Car Scanner App and will considering borrowing one from Orielly to confirm). I would apprieciate any help or tips you can provide.
I did this on Saturday. Man, the electrical connections were so hard to get off. Just left the harness at the back connected and replaced the injectors in the engine bay LOL. Truck took 5 cranks to start back up but it’s running great now. Thanks a lot for this video. 👍👍👍👍👍 Merry Christmas
Thanks for sharing this,my sierra 2014 5.3L starting to give me P0301 and P050D...swapped coil from cyl 1& 3 with still P0301.swapped spark plug wire 1&3 and still P0301.Will have to swapped spark plug 1&3 to see if i still have P0301.Looks like its gonna be injector...I am starting to hate my garbage truck,oil pump blows at 90.000KM and now that.Thanks again.
Chris, terrific video! I think this is my next step. I currently have a 2017 Yukon XL Denali 109K miles, 6.2L V8 Bought it a few months ago and I've had P050D "cold start rough idle" that is very consistent and sometimes P0301 comes up. Initially it was P0300, but after changing plugs and wires (I only use OEM) it's only P0301 and shows up occasionally. I ended up replacing the ignition coil on cylinder 1 and used some fuel injection cleaner too. That seemed to help a bit, but the codes keep coming back off and on. I switched plugs from different cylinders to see if I had a bad plug, but that doesn't seem to be the issue. This leads me to thinking that the fuel injectors are going bad. Everything I've read said fuel injectors last 50K-100K miles and with mine at 109K they likely haven't been replaced is my guess. When I hook up my scanner to check for misfires, I'll occasionally get random cylinders that have 3-5 misfires on a short trip (20-30 minutes) -- which leads me to believe all fuel injections are likely going bad. Thoughts?
My L86 6.2L 2017 Denali has 250,788 miles on the original injectors, before getting my 1st misfire in #7 cyl. With that being said I use 11 oz, of Lucas Upper cylinder lubricant and injector cleaner every 2nd or third gas tank fill up. I also still have AFM working almost like new. Due to using new Royal Purple Oil every 4500 miles and a good Oil filter which AFM survives by. Chris is the man for teaching us what must be done to get us moving forward smoothly again. Thanks Chris
Helpfull video! I had the P050D code. I followed ur example and was able to knock out all 8 injectors in just over 3 hrs. My truck took about 5 times cranking the key to get going but now sounds and run like a champ. The code never came up anymore. I need to get used to adding fuel system cleaner in gas tank to hopefully avoid dirty injectors.
Awesome video Chris, now I feel very comfortable with doing this project. I am confused on what injectors I need to get, some I am looking at are "high flow" some are "low flow" my truck is a 17' 6.2L so I am not sure what I'm looking for specifically. Help? Will the injectors you have listed work fine for my truck? (I can do the work but sometimes getting the right part stresses me out!)
Chris, Best video bar none! I was about to replace the injectors on my 14 GMC Sierra and caught that you stated that the fuel pipes need to be replaced. Picking mine up tomorrow. The feed pipe part # that you have listed has changed from 12677002 to 12377004 per my GM Dealership. I had already ordered the injectors (same as you suggested) and now should be good to go. Many of the GM forums do not know about your video so I will be sharing it there as many people do not have a solid resource like yours. Thanks for putting that quality video out and sharing your knowledge and process. I did subscribe and will watch for future videos from you. Thanks Again!
Thank you for the in-depth video! Any tips on getting the bolts out of the fuel rail? I bent the passenger side rail ever so slightly, and had to order a new one. Thank you for any help!
I just replaced the injectors on my 6.2 and also replaced both of those fuel lines. After replacing, the truck ran fine but shortly after started smelling of fuel, a ticking noise from the passenger side and I’m getting code p0174 and also a cylinder 6 misfire now. I pulled everything apart, rechecked the torque on the fuel lines, and even turned the key to the on position and see no fuel leaking. Since it didn’t leave with the key in the on position, I’m assuming the o ring from the rail to the injector is good. Where else could the fuel be leaking if nothing was leaking with the key in the on position? Could it be the seals at the head somehow? I’m confused how that could leak upwards and make such a strong smell of fuel.. Thanks for the video by the way
With the intake off and access to all the injectors. Disconnect the ignition coils and have someone start the engine will the intake is off. This will build the pressure on the fuel lines and help you find the leak. Let me know if you find the issue. I am interested now! lol Sorry for the long delay in response. I have been out of the country.
Had a P0300 and a P050D on my 2017 Silverado 1500 Z71 with only 46k miles. Was not very happy. I replaced the spark plugs and spark plug wires myself, which didn’t fix the problem. Chevy Dealership wanted between 3k-4k to fix; was almost 2k for parts alone. I have minimal mechanic skill but after watching your video and several others, I believed I could do it myself. I bought GM parts and a handful of new tools for around $800. I took my time and the injector replacement went great. The injector rails came out relatively smooth for me. The hardest part was the (3) Christmas tree style push tabs on the back of the intake manifold. Truck runs like a top and no CEL. Thanks for the video!
Ordered the injectors and both pipes. The pipe and injector numbers are old and new ones looks likes the same parts they just change the SKU with reference to the other numbers. Thanks hope this corrects the PO50D issue as this truck only has 80k on it. Do you know what the injector pressure should read and a scanner? Average pressure. Where do we all see the replies to post and your answers. That would be great. Again great video
Great video! i feel pretty confident that this will correct my issue, however I am not confident that the parts linked in the video are the right ones for my 2016 Sierra 4WD 5.3L. I am getting a message that says some of the parts do not fit my truck. The intake says it fits, but the piping and injectors give me a message that they are not right for my truck. is there any way to verify? Were there other part numbers for different trucks? Any insight you have would be appreciated!
Great video! Just did the repair today, and i have to say the video was great at taking the unknown out of the job. It was an afternoon's work and everything went great. could probably knock it out in about 2 hours now that I have done one. The dealers are getting fat off this job if what everyone is saying about the pricing is true! No check engine light and the truck runs better and smoother idle. The hardest part was getting the christmas trees off the back of the intake. But other than that it was easier than I expected. Just a couple notes about the parts links: Even though it said the injectors were not the correct ones for my truck, they were. And I ordered the S pipe and feed pipe from the links and I ended up with 2 S pipes from 2 different vendors, but I have no idea why. The local Chevy dealer had the feed pipe in stock for $41. The link for the intake gasket bring you to the seller and it says "set". Don't be fooled. It is not a set. It is a gasket for $5, and it is for one runner. You will need 8 of these.
Excellent video.Had my 2015 Silverado vehicle to dealer and said had 3 bad injectors.Number 3,6 and 8.Code was P0300 and P056D.Price to repair was 1500.00 3 injectors,intake seals and high pressure fuel pipes.Said no and its been 2 months before the engine light came on again.Now its code P050D.After watching your video I feel confident I can do this myself.Pretty handy with vehicles.Would you recommend only replacing the bad ones or all 8 and how do I know what is number 3,6,and 8
Another good trick when finishing up the fuel rails on the install of the new injectors put the key in the on position let the rails pressurize and check for leaks. unfortunately for me I had someone do some work for me and he never checked for leaks and he never changed those lines that you said would leak.so I had to pull the intake off and go back in there and tighten up the line to get rid of the leak. Unfortunately the guy was 10 hours away from me or I would have brought it back to him and let him fix it
Just be very carful when you do this. If you accidently crank it, you could have major issues. Also if you turn the key on with all that disconnected you will have a check engine light come on so you will need to be able to clear it (but 9 times out of 10 the check engine light is already on and that's why you are doing the job.)
Great video but don't use the link in the description for the feed pipe... the link to that is the same part as the S shape fuel line link...PN for feed line is 12677004, I got mines from summit racing after ordering & recieving 2 S shape fuel lines
Would cleaning the fuel injectors with one of the those pressurized cans you hang from the hood unplug the injector? Instead of replacing it. Great video btw 👍
Great video. I followed it step by step after getting some open injector codes. I replace all as suggested. Codes went away. However engine won't start. Turning but appears no fuel getting in. I sprayed in some starting fluid and turned over for a moment. I checked fuses and finally pulled manifold back off and checked all connections, which were good. A bit stumped. Possibly high pressure fuel pump? I can hear the fuel pump in the tank when I turn key. Of note, this engine is in a 52 Chevy pickup and has not been driven since installed.. Engine had 40k miles when pulled from a 2014 Silverado (5.3 L83). Wiring harness is from Current Performance in FL. I did have it running several times before getting P0202, P0204 and P0208 codes. Injectors were filthy so needed replacing for sure. Wires look to be okay. Any other ideas? I have heard those high pressure pumps can be a problem. Appreciate any advice.
You check the ground and power to injectors? Also, did you check the terminals for "spreading" and loss of contact? The codes are all on the passenger's side....makes you think it might be an injector connector problem. Hard to believe it is an injector problem if they are OEM brand (acdelco).
I have been struggling with my wifes 2014 silverado. It has had all 8 injectors replaced. I did not do it myself and wish I has seen this before I apid to have it done. we continue to get cold start and random misfire codes. I wonder if it is becasue the high preassure fuel lines you stated shsould be replaced were not. Perry
So after a year I finally replaced all my injectors just as shown in this video and I haven’t had any misfires or new codes come up. Thanks for the step by step process. Disconnecting the harnesses to the fuel rails was the most difficult part lol. Just by looking at the injectors it is hard to tell if they were clogged but they definitely had a lot of dirt and deposits around the ports. My only question is what should the ST and LT fuel trims be after the replacement? My ST bounces +\-3% and LT -4/7%. Does that sound right? Im guessing the LT trims do not reset when you clear the codes. Thanks again for the great video
Great! Glad it helped. You want your fuel trims long term to be as close to 0 as possible. As long as it doesn't go over 12/-12 you will never have and codes. Thanks again for watching!
@@cdarnau that’s good, my ST and LT trims are below that. It’s been a week now since the replacement and still no check engine light so that’s promising. I’ve already seen a 2mpg increase from before so I must have been burning more fuel then necessary with the bad injectors. Thanks again!
Thank you for the vid.! 1st. I’m in! 👍. Reading between storeys just told to me, this 2016 gmc,5.3L apart Twice by GM dealer, used truck warranty, replaced 6 out of 8, injectors, over 2 visits, has cured misfire codes, but , now “Stinks of raw fuel” smell, which today I confirmed, no mention of “S” fuel lines replaced !!!. What’s wrong ???. No codes,runs great, but stinks of raw gas ! But, “Drama!!” Smell used to smell every 3-4 days , now every day ! What would you order, before taking apart, & have to listen to more Drama ! before I get involved ? Fred, garage owner” with a great Rep. for fixing other “F” ups ? 40 yrs.?
Chris - my 2017 Tahoe with L83 has a P2097 Code : Post Catalytic Fuel Trim Sys TOO RICH - Last Year 2020 the Dealer Replace 1 o2 and Catalytic Y-Pipe for Low Efficiency Cat . Ran GOOD till This year . What NOW - my SUV Seems to have GREMLINS . No Other Codes ?
This is the kindest reply I have ever received on any platform at all! I just want to say thank you so much. Even though you don't know me, Mentally I have been drained over the last few years because of a death in my family and it has really taken a toll especially on my TH-cam content. Again, Thank you so much for your kind words and I hope good health and mental on you and your family as well. ✌
@@cdarnau Thank you. Once again I wish you all good health, especially mental health, which the World 🌎 needs so much. That's how I always am with every human being, we are family in one way or another. What matters to me about human beings is their HEALTH, that they are well as well as their beloved family. I don't care about the material status of human beings, only how they are physically. especially MENTAL. I am deeply sorry to read what happened to your beloved family, 😔😔😔, and for what you have been through, I am truly sorry. 😔There are no words and it is not easy when tragedies and negative effects happen around us. I hope that within all the circumstances and blows that life itself gives us 💛 and its injustices, unfortunately, you will always be brave. Life is not easy, but we have to be strong and brave to survive. 💯💕💯✌️
Dealer parts depart said they couldn’t tell me what injectors my truck uses without pulling them out first. Do you have any idea what flow rate injectors a 2017 gmc Sierra 1500 6.2 4x4 uses?
Unfortunately some year models were made this way. I am not sure why. What I would do is ask them to make sure they have the one used the most (they will know it is used in 90% of all the vehicles) Then remove them and best case scenario you go back together the same day with it. Luckily you can take the intake off in just a few minutes to get the number.
Great video, it's what I have been looking for. This makes the job seem less scary for sure. What miles were on this engine, could you see the carbon deposit levels when the manifold was off?
Ozer Ercan absolutely. I normally try to spray a little cleaner on the valves when I do them. I didn’t put that in the video. This vehicle had about 75k miles on it. Thanks for the comment and make sure you like and subscribe! It really helps the channel!
Next time you go one of these, can you make a valve cleaning video while the intake manifold is out? I'm sure most people doing this injector job would also like to clean valves while it's all in the open. I used CRC cleaner from the TB but not sure how much that helps.
So I'm getting rich fuel on both banks Bank 2 codes out then few minutes bank one goes . Only does it on a hot engine at idle. There is white smoke from the exhaust but very faint. I'm thinking it's a leaking fuel injector. Am I on the right path or am I over looking something, like the fuel pressure pump. And just out of curiosity why do you tighten the fuel lines before you loosen them?
Hey Chris this is Gerardo I have Chevy silveraldo 2017 when I’m driving in the parkway I’ll feel shaking shaking and vibrations here is my questions what do you think what it could be I still have warranty and I really like your video do you think it’s the fuel injector thank you and have a good day .
I have a 2016 Sierra 5.3. The dealer said injectors 1,3 and 8 were bad, but best to replace all of them. That I agree with. Fault codes are Po50D and P0300. GM Tech-link says I have three different injectors installed, low flow, normal flow, and high flow. I read on GM tech-link, that if the injector order were mixed up, the normal flow injector could be installed for all 8 injectors, but you could have fuel trim and emission problems. GM also recommends all the hard fuel injector line to be replaced to prevent fuel leakage, since the high-pressure fuel is about 3000 PSI Does it really make a difference? This was in December 2020. In March 2021 when it warmed up the fault codes cleared on their own. What do you think?
Absolutely the clearest video I've seen, thanks! I have a p0306 circuit open, with a matching p0206. They came up once a week ago I cleared the codes and all was well for a whole week. Then they came back and would not clear or continue to run correctly which they did for the week. What do you think the odds are that I just have a totally shot injector? All my wiring looks great from the outside I can't imagine it's a short somewhere.
@@Tuesflex cylinder 6 injector was toast. The internal coil in the injector that opens and closes it when powered was shorted internally. Probably broken winding. Something like 80 thousand ohms lol. Changed all 8 injectors while I was in there. Almost broke a pricy fuel rail because the injectors were stuck so bad.
You don't have to. If I were going to, I would use soapy water on a rag. I wouldn't spray it cause it could go into the intake inlets. Awesome! Glad I could help! Make sure to SUBSCRIBE! It really helps the channel!
@@cdarnau No, I mean whatevers left after removing the fuel system like the removing the valley plate and on into the lifter valley, etc. I worry about being 'that guy' that gets a colllapsed lifter.
After several false starts, truck started but ran at reduced power. Pulled the following codes: P0090; P00C6; P0202; P0204; P0206; P0208 Any suggestions as to where I went wrong? Thanks.
Chris thanks a lot, my question is should I try installing oxygen sensors first before this procedure because I have codes P0175 and P0172 on my 2015 GMC Sierra SLE with Rich Condition, too little air and too much fuel.
@Chris Arnau it ended up being the high-pressure fuel pump. I changed it out. Works fine now . Ranges from (-5 to 5) Got sick seeing my intake valves. But it's the type of engine, I guess .
@@chrisharrison6075 I always soak my intake valve when I take an engine down. I know it is just gonna get back to that. But at least they are clean for me looking at them. lol
Hola Chris. my question is if you have to do the relearn procedure on the throttle position sensor or not ? Gracias/thank you Chris it was a very good video
Got a 2014 silverado 1500 4.3l. Got the p0174 system too lean( bank 2). When looking at the data the fuel trim bank 1 long term is 35%. The fuel trim bank 2 long term is 35%. Both banks are at 35% at idle 550 rpms. A soon as I hit the throttle both banks come down to 12%. When driving the numbers come down even more to 1% to 4%. The engine is at operating temperature of 100C.
I made the repair to my 2017 Tahoe with your video and the manual to guide me. Do I need to use an OBD scanner to clear the codes after the repairs? I drove it around without a hitch for 20 minutes but the light remains after I swapped all 8 injectors as prescribed. Thank you so much.
No problem man! I am glad it helped! I actually did one today. Without recording, it takes me less than an hour to do! Make sure to like and Subscribe! Also get the special tools I got in there. Makes is easier.
Just finished up my 2015 Silverado using this video as a walk through. Thank you very much for putting this together, it worked out good! Just so your aware though, the two fuel line parts you have linked are both S curve fuel lines. Pn 12677004 is the other fuel line, my local dealer had it. Also the injectors linked in the video did not come with the dust boots or whatever theyre called for the injectors, at least not for me. But thank you again for putting this together. I have read all the forums saying its 1800+ dollar repair at a shop. I did it for 450ish thanks to you!
Great! I'm glad it helped! I will have to double check my parts list. Sorry about that! Make sure to like and Subscribe though! It really helps the channel. Thanks again for watching!!
Chris you have a new subscriber. What a great video man. Thanks for it. Where are you located? My truck is 2016 with engine 6.2L V8 codes are P0208 and P 0308. I changed spark plugs and coil’s but code for fuel injector is on still.
If you ever need help, don't hesitate to send me a message. I will do whatever I can. It may be easier to get me on Twitter messages though. @cdarnau on Twitter.
That was really cool I just had my dealership do this oh my car and when I got it back it sounds like one of those old-time popcorn machines. Any idea what the problem might be
Changed the injector on my 2016 Zo6 vette & when I put everything back together to start the vehicle , the vehicle wouldn’t stay onand codes p219b, p00c6 pop up. Any suggestions on how to fix it
Hey Chris great video. I have a 2017 Chevy Suburban with 244K miles with a second used engine installed. I have this weird issue where the car will sometimes will shutoff at a stop sign and will start right up. Also it will go in to a limp mode when I’m in stop and go traffic and I would have to restart the engine like 5-10 times before it runs normal again. There is no telling when it do these things. All the sensors from air box to the engine are replaced recently including the throttle body and the sensor. Wondering if this fuel injector replacement will help. Sorry for the long question. Thanks
@@batculu hehehe you said fuck it I’m not dealing with it lol Yea unfortunately I need my suv for work lol It’s a 19 Chevy suburban having a few misfires at 124000 I already replaced 2 injectors Now I got another asking to be replaced I’m just gonna do all 6 left And go from there
@@PedroACastro-g3w hate to be the bearer of bad news but. If you’re using it for work you’re looking at a guaranteed engine and tranny replacement. And they follow each other. I wish you and everyone else good luck
I am being told there are 3 different injectors, Low pressure, nominal pressure, and high pressure. I want to change all 8 injectors but I don't want to tear it down to figure out what to order. How can I be sure what injectors to order? 2015 Sierra 6.2L L86
Exactly what I need to do to my truck. My scanner is giving me a rough idle cold start, random misfire, and lean bank 2 code. I’ve changed spark plugs and wires and used several fuel system cleaners and it hasn’t solved the issue. It has to be bad fuel injectors. My scanner is showing the history of misfires and cylinder 3,4, 7 and 8 have the most misfires. Is this an indication that those cylinders have the bad fuel injectors, or since it’s a p300 code should I just replace all injectors?
Are the S Pipe and Feed Pipe 2 different manufactured components or are they the same from different manufacturers from the list. Currently the S Pipe from Amazon is out of order
hey man great video, whats the tube from the manifold into the engine block considered? i broke the plastic part going into the engine and need to figure out what i need to buy for it. its at 2:10
Evap Vent line to purge solenoid. Sorry that happened buddy. But in this line of work, if things don't break from time to time... You're not doing something right. Lol.
Did anyone on here have to bleed the high pressure fuel lines before removing them? I read if you don't do that it will spray fuel everywhere. If so how did you do it? I removed the FP relay bit my truck won't start after removing.
Very good your video! I was able to perform the entire process on my tahoe 2015! but after all ready and tested, a new code appeared P0172! Do you have a video that talks about this problem, how to fix
Does this fix the weird idle? My 2016 gmc with the 4.3 has a horrible idle. Sometimes feels like it's going to die. It had 17k miles when i bought it, now had 49k miles. I figured it was just something i had to deal with but a friend with same truck and engine said it's the injectors.
BEST video for this repair PERIOD. I'm a certified tech and some of these videos are a joke lol, but you nailed it from start to finish brother! THANKS! 👊
Excellent video. Thank you for making this. I just replaced my injectors, and I have some insights to add. First, before you remove the valve cover bolt that holds the fuel line to the head, you must remove the oil filler cap and pull up on the plastic cover over the coils and valve cover. This gives you easier access to the bolt. Second, there are four “Christmas trees” holding the wiring harness to the back of the intake manifold, and they are stubborn. Just be patient and use a tool such as the one he uses in the video. Third and most importantly, a lot of dirt and debris can collect around the injectors, so before you undo the fuel lines and remove the injectors, cover your intake ports, breathers, throttle body opening, etc, and then use a blower nozzle to blow air around the injectors. A lot of dust and sand flew out when I did this. Then remove the fuel lines and cap them. Pry up the injectors just a little bit, and blow around them one more time. This should remove any debris that might fall into your combustion chambers. At that point, you can safely remove your injectors. One last thing: the first thing to do in this job is to pull the fuel pump fuse and run the motor until it dies. This depressurizes the fuel system.
Yuma AZ
2015 Gmc denali Xl Yukon
Replacing all 8 injectors
Valve cover gaskets
Fuel service
All done at the gm dealer $3,000
I used your video at the dealership and mechanics said THIS GUY KNOWS HIS SHIT!!!!! They legitimately all searched your video and saved it. Thank you!!!!
Yuma here bout to replace injector #8
You’re a life saver. Dealership quoted me at $2800 to change 1 fuel injector, $3300 for all 8. Found a company going out of business selling a set of 8 for $109. Replaced all 8 and no more misfire/ cold start rough idle code. Thank you for your step by step.
I'm glad it helped! Make sure to Like and Subscribe. It really helps the channel! Thanks again for watching!
2800 just for 1??? You should file attempted rape charges on them for that because that’s insane!
@@blake102989 yeah they said it would take them 17 hours, have to keep the truck overnight and everything. Took me 2 hours using hand tools and a chair to stand on (trucks lifted) in my driveway.. alone. I even changed all the gaskets on the way back out just for good measure. Total cost was around $200 to change all 8 (got lucky with the price tbh). But even if I had to pay $500 for all 8 injectors it would have been a bargain compared to what they were asking.
@@sirdumbthicc4294 if it takes them 17 hours they need to just close up shop and find a different career path because being a mechanic is not for them lol. I would’ve filed attempted rape charges on them for that kind of robbery they’re tryin to pull 😂 im glad you were able to get it done yourself though. I will do anything I can myself because if you want it done right, do it yourself lol
@@blake102989 yeah it’s crazy. I know they go off the manufacturer recommended time, but you know they would have taken every minute of that time. No way they would have got it done in 2 hours and been like “you’re on your way”.
Man - It was really crisp. You have the gift to explain it properly.
My L86 6.2L 2017 Denali has 250,788 miles on the original injectors, before getting my 1st misfire in #7 cyl. With that being said I use 11 oz, of Lucas Upper cylinder lubricant and injector cleaner every 2nd or third gas tank fill up. I also still have AFM working almost like new. Due to using new Royal Purple Oil every 4500 miles and a good Oil filter which AFM survives by. Chris is the man for teaching DIYers what must be done to get us moving forward smoothly again. I'm now expecting a fuel injector seal leak after checking for a collaped lifter that was still moving the rocker arms. Thanks Chris
that part at 8:48 where the rail seems to hop up, making it easier for the mechanic to loosen and pull the rail is pure sorcery. Still waiting for mine to self-adjust ..
Chris, thanks for doing this video! I just replaced all my injectors on my 2017 Tahoe and doing it myself saved me a lot of money. I was a strait forward repair if you follow this video and my Tahoe runs great now. I suggest to others that are reading this comment to make sure you use INCH pounds not FOOT pounds for the manifold bolts. Chris clearly says this in the video but could easily overlooked if you don't listen closely. Thanks again Chris!
Where do you get your injectors from?
@@timothysteadham331 I used genuine GM injectors. I removed an injector and then used the number printed on the injector to match the new ones. I paid more but I knew they were the exact parts.
The best description of any automotive repair ever.
Took four and half hours. I cannot thank you enough for this tutorial. I have a 4.3 liter engine so it was not as bad reaching to the back bolts. Those connectors on the other hand, I think I sprained both index finger and thumb on each hand trying to et those off! Thanks again, runs sooo much better.
I am glad I was able to help! Make sure to like and subscribe! It really helps the channel! Thanks again for watching!
About to do my 2016 Silverado with P0300 code.
Thank God I found your video!!
Very straight forward instruction. My injector rail was so stuck it took an 2500# engine lift to free it. (2014, 5.3, 87k miles) P050d and p300 codes. No ticking but rough idle.
for real!
Great video, thanks! I'm getting the P0301 and P0300 codes, so I immediately replaced the #1 plug and swapped the #1 & #3 coils to ensure coils and cables are fine (seemed to work). After clearing the code and running it, it showed me the P0300 code along with a cold start code. I'm not seeing #1 misfires on the live data, and the #2 cylinder is misfiring continuously while some of the others are misfiring occasionally, such as #7 (Still need to change the remaining 6 plugs tomorrow morning). I changed the #2 spark plug and coil, and I checked that I'm getting power to the plug with another test, though I may check the plug again to be sure. Before I go further, the 2018 Tahoe was running fine up to this point and on the way to the gas station, the check engine light came on and stayed on while I felt the power go away and the nightmare begin. This to me seems like a sudden failure of something, so I thought maybe the #2 fuel injector is bad since I already replaced the #1 and #2 plugs & cables with the #2 coil, leaving the fuel injuector (am I missing something?). Looking at the live data on the car scanner tool (iphone app), all other parameters seemed reasonable with a reading with no extreme values indicating a short or something, except for the engine oil pressure sensor that is reading 0 psi...I then read that having low oil pressure can throw the P0300 code, so I'm now thinking it may have to do with that, because here's the other part. I replaced all 8 fuel injectors by watching your video, and it was very straight forward! (I couldn't get the christmas tree on the back of the intake manifold as it was hard to reach and I heard it fall down...Is that a problem to have the harness loose back there?). That didn't fix the problem for me and #2 still misfires with the ocassional ones from #7, with lots of white smoke from the exhaust. The strange thing I'm also noticing is that the live data is showing #2 continously misfiring while the history counter is showing #1 adding up very fast while the #2 history shows 0 (I'm now thinking there may be something wrong with the Car Scanner App and will considering borrowing one from Orielly to confirm). I would apprieciate any help or tips you can provide.
Thanks for sparing us all the air ratchets screams
I was gonna say I wish my air ratchet was that quiet
I did this on Saturday. Man, the electrical connections were so hard to get off. Just left the harness at the back connected and replaced the injectors in the engine bay LOL. Truck took 5 cranks to start back up but it’s running great now. Thanks a lot for this video. 👍👍👍👍👍 Merry Christmas
One of the best videos for gen v injector service
Thanks for sharing this,my sierra 2014 5.3L starting to give me P0301 and P050D...swapped coil from cyl 1& 3 with still P0301.swapped spark plug wire 1&3 and still P0301.Will have to swapped spark plug 1&3 to see if i still have P0301.Looks like its gonna be injector...I am starting to hate my garbage truck,oil pump blows at 90.000KM and now that.Thanks again.
I watched this 100 times tonight. Your a true blessing bro. Saved me $1200
Awesome! Glad I could help! Make sure to SUBSCRIBE! It really helps the channel!
- "I never really had any problems getting these clips back on"
- Commence Caveman Repair Technique Number 1
I want to say thanks to Chris I fixed my injection in my suburban awsom
Chris, terrific video! I think this is my next step. I currently have a 2017 Yukon XL Denali 109K miles, 6.2L V8
Bought it a few months ago and I've had P050D "cold start rough idle" that is very consistent and sometimes P0301 comes up. Initially it was P0300, but after changing plugs and wires (I only use OEM) it's only P0301 and shows up occasionally. I ended up replacing the ignition coil on cylinder 1 and used some fuel injection cleaner too. That seemed to help a bit, but the codes keep coming back off and on. I switched plugs from different cylinders to see if I had a bad plug, but that doesn't seem to be the issue.
This leads me to thinking that the fuel injectors are going bad. Everything I've read said fuel injectors last 50K-100K miles and with mine at 109K they likely haven't been replaced is my guess. When I hook up my scanner to check for misfires, I'll occasionally get random cylinders that have 3-5 misfires on a short trip (20-30 minutes) -- which leads me to believe all fuel injections are likely going bad. Thoughts?
My L86 6.2L 2017 Denali has 250,788 miles on the original injectors, before getting my 1st misfire in #7 cyl. With that being said I use 11 oz, of Lucas Upper cylinder lubricant and injector cleaner every 2nd or third gas tank fill up. I also still have AFM working almost like new. Due to using new Royal Purple Oil every 4500 miles and a good Oil filter which AFM survives by. Chris is the man for teaching us what must be done to get us moving forward smoothly again. Thanks Chris
Helpfull video! I had the P050D code. I followed ur example and was able to knock out all 8 injectors in just over 3 hrs. My truck took about 5 times cranking the key to get going but now sounds and run like a champ. The code never came up anymore. I need to get used to adding fuel system cleaner in gas tank to hopefully avoid dirty injectors.
Just purchase top tier fuel from Chevron or Exxon. Decrease the "idle time" and keep the tank at least 1/3 full.
Awesome video Chris, now I feel very comfortable with doing this project. I am confused on what injectors I need to get, some I am looking at are "high flow" some are "low flow" my truck is a 17' 6.2L so I am not sure what I'm looking for specifically. Help? Will the injectors you have listed work fine for my truck? (I can do the work but sometimes getting the right part stresses me out!)
You did a very good job on this video! Your video helped me tremendously in changing my fuel injectors on my truck
Great video, I followed along step by step. You did a great job explaining everything. Got my injectors replaced and truck is running well!!
Chris, Best video bar none! I was about to replace the injectors on my 14 GMC Sierra and caught that you stated that the fuel pipes need to be replaced. Picking mine up tomorrow. The feed pipe part # that you have listed has changed from 12677002 to 12377004 per my GM Dealership. I had already ordered the injectors (same as you suggested) and now should be good to go. Many of the GM forums do not know about your video so I will be sharing it there as many people do not have a solid resource like yours. Thanks for putting that quality video out and sharing your knowledge and process. I did subscribe and will watch for future videos from you. Thanks Again!
Is you sierra a flex fuel?
@@Kp-ve9zm mine is and I'm currently about to change my injectors
How are those parts holding up
Thank you for the in-depth video! Any tips on getting the bolts out of the fuel rail? I bent the passenger side rail ever so slightly, and had to order a new one. Thank you for any help!
Chris left them in I believe
I just replaced the injectors on my 6.2 and also replaced both of those fuel lines. After replacing, the truck ran fine but shortly after started smelling of fuel, a ticking noise from the passenger side and I’m getting code p0174 and also a cylinder 6 misfire now. I pulled everything apart, rechecked the torque on the fuel lines, and even turned the key to the on position and see no fuel leaking. Since it didn’t leave with the key in the on position, I’m assuming the o ring from the rail to the injector is good. Where else could the fuel be leaking if nothing was leaking with the key in the on position? Could it be the seals at the head somehow? I’m confused how that could leak upwards and make such a strong smell of fuel..
Thanks for the video by the way
With the intake off and access to all the injectors. Disconnect the ignition coils and have someone start the engine will the intake is off. This will build the pressure on the fuel lines and help you find the leak. Let me know if you find the issue. I am interested now! lol Sorry for the long delay in response. I have been out of the country.
Had a P0300 and a P050D on my 2017 Silverado 1500 Z71 with only 46k miles. Was not very happy. I replaced the spark plugs and spark plug wires myself, which didn’t fix the problem. Chevy Dealership wanted between 3k-4k to fix; was almost 2k for parts alone. I have minimal mechanic skill but after watching your video and several others, I believed I could do it myself. I bought GM parts and a handful of new tools for around $800. I took my time and the injector replacement went great. The injector rails came out relatively smooth for me. The hardest part was the (3) Christmas tree style push tabs on the back of the intake manifold. Truck runs like a top and no CEL. Thanks for the video!
Hey, still running good?
Excellent!’ Why not also replace high pressure fuel pump since you are there?
How did you determine it was the injectors? Was fuel trim all you looked at, or any other data pids?
Fuel injector balance test
Great video, your drawing and how you actually explained everything is extremely helpful
Just wanted to say thanks.
I ordered the parts from your list, followed step by step. My truck is running like a champ!
Glad it helped! Make sure to like and subscribe! Thanks for the comment! Thanks again for watching!
How are those parts holding up?
@@Tuesflex still working great with no issues
Thank you for the detailed video.
Why replace all 8? And not just the one bad one?
Why did you skip the most important part at 8:48? At 8:48 the video skipped to the fuel rail and injectors already pryed out
Because there were too many swear words used...yeah, it's NOT THAT easy most of the time.
Ordered the injectors and both pipes. The pipe and injector numbers are old and new ones looks likes the same parts they just change the SKU with reference to the other numbers. Thanks hope this corrects the PO50D issue as this truck only has 80k on it. Do you know what the injector pressure should read and a scanner? Average pressure. Where do we all see the replies to post and your answers. That would be great. Again great video
How are those injectors holding up
Great video! i feel pretty confident that this will correct my issue, however I am not confident that the parts linked in the video are the right ones for my 2016 Sierra 4WD 5.3L. I am getting a message that says some of the parts do not fit my truck. The intake says it fits, but the piping and injectors give me a message that they are not right for my truck. is there any way to verify? Were there other part numbers for different trucks? Any insight you have would be appreciated!
Great video! Just did the repair today, and i have to say the video was great at taking the unknown out of the job. It was an afternoon's work and everything went great. could probably knock it out in about 2 hours now that I have done one. The dealers are getting fat off this job if what everyone is saying about the pricing is true!
No check engine light and the truck runs better and smoother idle. The hardest part was getting the christmas trees off the back of the intake. But other than that it was easier than I expected.
Just a couple notes about the parts links: Even though it said the injectors were not the correct ones for my truck, they were. And I ordered the S pipe and feed pipe from the links and I ended up with 2 S pipes from 2 different vendors, but I have no idea why. The local Chevy dealer had the feed pipe in stock for $41. The link for the intake gasket bring you to the seller and it says "set". Don't be fooled. It is not a set. It is a gasket for $5, and it is for one runner. You will need 8 of these.
Excellent video.Had my 2015 Silverado vehicle to dealer and said had 3 bad injectors.Number 3,6 and 8.Code was P0300 and P056D.Price to repair was 1500.00 3 injectors,intake seals and high pressure fuel pipes.Said no and its been 2 months before the engine light came on again.Now its code P050D.After watching your video I feel confident I can do this myself.Pretty handy with vehicles.Would you recommend only replacing the bad ones or all 8 and how do I know what is number 3,6,and 8
Got mine on eBay.waiting for them to arrive and they are AC Delco
Do all 8,you don't want to do this again if other ones fail.
Just replaced mine. This video helped me out a ton! I appreciate it
Another good trick when finishing up the fuel rails on the install of the new injectors put the key in the on position let the rails pressurize and check for leaks. unfortunately for me I had someone do some work for me and he never checked for leaks and he never changed those lines that you said would leak.so I had to pull the intake off and go back in there and tighten up the line to get rid of the leak. Unfortunately the guy was 10 hours away from me or I would have brought it back to him and let him fix it
Just be very carful when you do this. If you accidently crank it, you could have major issues. Also if you turn the key on with all that disconnected you will have a check engine light come on so you will need to be able to clear it (but 9 times out of 10 the check engine light is already on and that's why you are doing the job.)
@@cdarnauthanks but I did make sure all my connections were tight before I turned the key on and let the rails pressurize
hey brother I got the same codes p0300 and p0175 p050d codes and the fix to these is injectors
Awesome video, Thank you! saved me $1500 at the dealer
Great video but don't use the link in the description for the feed pipe... the link to that is the same part as the S shape fuel line link...PN for feed line is 12677004, I got mines from summit racing after ordering & recieving 2 S shape fuel lines
What was the blue tool you use on the fuel line from the low side pressure side?
will this be the same procedure for a 2017 Escalade with the 6.2? I’ve got P0206 and P0306 codes and a horrible idle/ misfire. 101000 miles on it.
Man really great video that you for the detail and tips, torque specs and everything. What do you think the labor in a job like this should run?
Would cleaning the fuel injectors with one of the those pressurized cans you hang from the hood unplug the injector? Instead of replacing it. Great video btw 👍
Great video. I followed it step by step after getting some open injector codes. I replace all as suggested. Codes went away. However engine won't start. Turning but appears no fuel getting in. I sprayed in some starting fluid and turned over for a moment. I checked fuses and finally pulled manifold back off and checked all connections, which were good. A bit stumped. Possibly high pressure fuel pump? I can hear the fuel pump in the tank when I turn key. Of note, this engine is in a 52 Chevy pickup and has not been driven since installed.. Engine had 40k miles when pulled from a 2014 Silverado (5.3 L83). Wiring harness is from Current Performance in FL. I did have it running several times before getting P0202, P0204 and P0208 codes. Injectors were filthy so needed replacing for sure. Wires look to be okay. Any other ideas? I have heard those high pressure pumps can be a problem. Appreciate any advice.
You check the ground and power to injectors? Also, did you check the terminals for "spreading" and loss of contact? The codes are all on the passenger's side....makes you think it might be an injector connector problem. Hard to believe it is an injector problem if they are OEM brand (acdelco).
I have been struggling with my wifes 2014 silverado. It has had all 8 injectors replaced. I did not do it myself and wish I has seen this before I apid to have it done. we continue to get cold start and random misfire codes. I wonder if it is becasue the high preassure fuel lines you stated shsould be replaced were not.
Perry
So after a year I finally replaced all my injectors just as shown in this video and I haven’t had any misfires or new codes come up. Thanks for the step by step process. Disconnecting the harnesses to the fuel rails was the most difficult part lol. Just by looking at the injectors it is hard to tell if they were clogged but they definitely had a lot of dirt and deposits around the ports. My only question is what should the ST and LT fuel trims be after the replacement? My ST bounces +\-3% and LT -4/7%. Does that sound right? Im guessing the LT trims do not reset when you clear the codes. Thanks again for the great video
Great! Glad it helped. You want your fuel trims long term to be as close to 0 as possible. As long as it doesn't go over 12/-12 you will never have and codes. Thanks again for watching!
@@cdarnau that’s good, my ST and LT trims are below that. It’s been a week now since the replacement and still no check engine light so that’s promising. I’ve already seen a 2mpg increase from before so I must have been burning more fuel then necessary with the bad injectors. Thanks again!
Thank you for the vid.! 1st. I’m in! 👍. Reading between storeys just told to me, this 2016 gmc,5.3L apart Twice by GM dealer, used truck warranty, replaced 6 out of 8, injectors, over 2 visits, has cured misfire codes, but , now “Stinks of raw fuel” smell, which today I confirmed, no mention of “S” fuel lines replaced !!!. What’s wrong ???. No codes,runs great, but stinks of raw gas ! But, “Drama!!” Smell used to smell every 3-4 days , now every day ! What would you order, before taking apart, & have to listen to more Drama ! before I get involved ? Fred, garage owner” with a great Rep. for fixing other “F” ups ? 40 yrs.?
Did you figure this out? I just replaced my injectors and having the same gas smell issue
Just used the screwdriver handle method to install my clips and it worked perfectly. Thanks!
Awesome! Glad I could help! Make sure to Subscribe! It really helps the channel!
Chris - my 2017 Tahoe with L83 has a P2097 Code : Post Catalytic Fuel Trim Sys TOO RICH - Last Year 2020 the Dealer Replace 1 o2 and Catalytic Y-Pipe for Low Efficiency Cat .
Ran GOOD till This year .
What NOW - my SUV Seems to have GREMLINS .
No Other Codes ?
Good morning family and good health to everyone especially MENTAL. Thank you very much for sharing. 👍🏼🙏💯💕💯✌️
This is the kindest reply I have ever received on any platform at all! I just want to say thank you so much. Even though you don't know me, Mentally I have been drained over the last few years because of a death in my family and it has really taken a toll especially on my TH-cam content. Again, Thank you so much for your kind words and I hope good health and mental on you and your family as well. ✌
@@cdarnau Thank you. Once again I wish you all good health, especially mental health, which the World 🌎 needs so much. That's how I always am with every human being, we are family in one way or another. What matters to me about human beings is their HEALTH, that they are well as well as their beloved family. I don't care about the material status of human beings, only how they are physically. especially MENTAL. I am deeply sorry to read what happened to your beloved family, 😔😔😔, and for what you have been through, I am truly sorry. 😔There are no words and it is not easy when tragedies and negative effects happen around us. I hope that within all the circumstances and blows that life itself gives us 💛 and its injustices, unfortunately, you will always be brave. Life is not easy, but we have to be strong and brave to survive. 💯💕💯✌️
Dealer parts depart said they couldn’t tell me what injectors my truck uses without pulling them out first.
Do you have any idea what flow rate injectors a 2017 gmc Sierra 1500 6.2 4x4 uses?
Unfortunately some year models were made this way. I am not sure why. What I would do is ask them to make sure they have the one used the most (they will know it is used in 90% of all the vehicles)
Then remove them and best case scenario you go back together the same day with it. Luckily you can take the intake off in just a few minutes to get the number.
Do you ever use any sort of lubricant on the o rings for the injectors?
Is this the fix for all Po300?
What's the blue plastic tool at 6:16? I'm having a mess of trouble getting this line off
Same
Great video, it's what I have been looking for. This makes the job seem less scary for sure.
What miles were on this engine, could you see the carbon deposit levels when the manifold was off?
Ozer Ercan absolutely. I normally try to spray a little cleaner on the valves when I do them. I didn’t put that in the video. This vehicle had about 75k miles on it. Thanks for the comment and make sure you like and subscribe! It really helps the channel!
Next time you go one of these, can you make a valve cleaning video while the intake manifold is out? I'm sure most people doing this injector job would also like to clean valves while it's all in the open. I used CRC cleaner from the TB but not sure how much that helps.
@@ozer1980 I will definitely do this and add it to the comments on this video.
How much is the cost of this repair ?
Sergio Jacquez At the dealership or if you do it yourself?
So I'm getting rich fuel on both banks
Bank 2 codes out then few minutes bank one goes . Only does it on a hot engine at idle. There is white smoke from the exhaust but very faint. I'm thinking it's a leaking fuel injector. Am I on the right path or am I over looking something, like the fuel pressure pump.
And just out of curiosity why do you tighten the fuel lines before you loosen them?
Hey Chris this is Gerardo I have Chevy silveraldo 2017 when I’m driving in the parkway I’ll feel shaking shaking and vibrations here is my questions what do you think what it could be I still have warranty and I really like your video do you think it’s the fuel injector thank you and have a good day .
Great video. Thanks for giving out the size off the bolts.
I have a 2016 Sierra 5.3. The dealer said injectors 1,3 and 8 were bad, but best to replace all of them. That I agree with.
Fault codes are Po50D and P0300.
GM Tech-link says I have three different injectors installed, low flow, normal flow, and high flow.
I read on GM tech-link, that if the injector order were mixed up, the normal flow injector could be installed for all 8 injectors, but you could have fuel trim and emission problems.
GM also recommends all the hard fuel injector line to be replaced to prevent fuel leakage, since the high-pressure fuel is about 3000 PSI
Does it really make a difference?
This was in December 2020. In March 2021 when it warmed up the fault codes cleared on their own.
What do you think?
Absolutely the clearest video I've seen, thanks! I have a p0306 circuit open, with a matching p0206. They came up once a week ago I cleared the codes and all was well for a whole week. Then they came back and would not clear or continue to run correctly which they did for the week. What do you think the odds are that I just have a totally shot injector? All my wiring looks great from the outside I can't imagine it's a short somewhere.
Did you find out what it was?
@@Tuesflex cylinder 6 injector was toast. The internal coil in the injector that opens and closes it when powered was shorted internally. Probably broken winding. Something like 80 thousand ohms lol. Changed all 8 injectors while I was in there. Almost broke a pricy fuel rail because the injectors were stuck so bad.
@@Dougy_Fresh agh damn that sucks man. Did you order the parts from Amazon?
Did your injectors come pre-sealed? Or did you have to put them on yourself?
Great video, however, how do I bleed the pressure in the fuel rail? So that it doesn’t spray places that do not want to be sprayed
You don't have to. If I were going to, I would use soapy water on a rag. I wouldn't spray it cause it could go into the intake inlets. Awesome! Glad I could help! Make sure to SUBSCRIBE! It really helps the channel!
Nice vid. If you ever have one with a stuck lifter, please post the second half of that task after the fuel system is removed.
Like using the special tool to remove the rail? I can do that.
@@cdarnau No, I mean whatevers left after removing the fuel system like the removing the valley plate and on into the lifter valley, etc. I worry about being 'that guy' that gets a colllapsed lifter.
@@ArnoTrek Ok, I understand. I can do that.
After several false starts, truck started but ran at reduced power. Pulled the following codes: P0090; P00C6; P0202; P0204; P0206; P0208
Any suggestions as to where I went wrong?
Thanks.
Seriously 👏🏽 great video. My car is leaking gas whenever I start it. I’m tempted to fix it myself.
Awesome! Glad I could help! Make sure to SUBSCRIBE! It really helps the channel and I try to answer Subscriber questions first!
Chris thanks a lot, my question is should I try installing oxygen sensors first before this procedure because I have codes P0175 and P0172 on my 2015 GMC Sierra SLE with Rich Condition, too little air and too much fuel.
I have the same issue. Have you found anything yet that would fix it
If you're rich you probably have a leaking High pressure fuel pump leaking into the engine. I have seen this a lot.
@Chris Arnau it ended up being the high-pressure fuel pump. I changed it out. Works fine now . Ranges from (-5 to 5)
Got sick seeing my intake valves. But it's the type of engine, I guess .
@@chrisharrison6075 I always soak my intake valve when I take an engine down. I know it is just gonna get back to that. But at least they are clean for me looking at them. lol
Hola Chris. my question is if you have to do the relearn procedure on the throttle position sensor or not ? Gracias/thank you Chris it was a very good video
Hola! No sir you do not. Make sure to Subscribe! It really helps the channel!
If they don't come with those white dust boots do you add them when replace
Good Video Cris
what does the Book Time Call to Replace the injectors ?
8 hrs Guessing
Got a 2014 silverado 1500 4.3l. Got the p0174 system too lean( bank 2). When looking at the data the fuel trim bank 1 long term is 35%. The fuel trim bank 2 long term is 35%. Both banks are at 35% at idle 550 rpms. A soon as I hit the throttle both banks come down to 12%. When driving the numbers come down even more to 1% to 4%. The engine is at operating temperature of 100C.
Sounds like you have a vacuum leak
Sounds like you might need a LTFT reset or two o2 sensors. Depends on the voltage readings
I made the repair to my 2017 Tahoe with your video and the manual to guide me. Do I need to use an OBD scanner to clear the codes after the repairs? I drove it around without a hitch for 20 minutes but the light remains after I swapped all 8 injectors as prescribed. Thank you so much.
Yeah, it will need to be code cleared. Glad the video helped! Make sure to subscribe! Thanks again for watching!
Do the injectors need to be coded to the ECU to work properly?
Finally I found the video I need to see for my p050d code. Video was perfect very well explain. Thank you.
No problem man! I am glad it helped! I actually did one today. Without recording, it takes me less than an hour to do! Make sure to like and Subscribe! Also get the special tools I got in there. Makes is easier.
Just finished up my 2015 Silverado using this video as a walk through. Thank you very much for putting this together, it worked out good! Just so your aware though, the two fuel line parts you have linked are both S curve fuel lines. Pn 12677004 is the other fuel line, my local dealer had it. Also the injectors linked in the video did not come with the dust boots or whatever theyre called for the injectors, at least not for me. But thank you again for putting this together. I have read all the forums saying its 1800+ dollar repair at a shop. I did it for 450ish thanks to you!
Great! I'm glad it helped! I will have to double check my parts list. Sorry about that! Make sure to like and Subscribe though! It really helps the channel. Thanks again for watching!!
69cruzr I also have a 2015 and was wondering how the injectors from Amazon are working out? I have the same issue po50d.
@@erichsonntag working great. They are ac delco injectors. Factory oem.
Chris you have a new subscriber. What a great video man. Thanks for it. Where are you located? My truck is 2016 with engine 6.2L V8 codes are P0208 and P 0308. I changed spark plugs and coil’s but code for fuel injector is on still.
Can i put the s pipe and feed pipe back if i am only replacing one injector?
As always , GREAT video ! Your videos are VERY easy to follow , and understand ! Just wish I would have one , for every job , I try on my 2006 DTS !
If you ever need help, don't hesitate to send me a message. I will do whatever I can. It may be easier to get me on Twitter messages though. @cdarnau on Twitter.
I have a 2015 Silverado 1500. Is a P050D always going to be a bad fuel injector?
Clear straight forward nicely done
That was really cool I just had my dealership do this oh my car and when I got it back it sounds like one of those old-time popcorn machines. Any idea what the problem might be
Not sure. Is it running fine other than the noise?
Changed the injector on my 2016 Zo6 vette & when I put everything back together to start the vehicle , the vehicle wouldn’t stay onand codes p219b, p00c6 pop up. Any suggestions on how to fix it
Hey Chris great video. I have a 2017 Chevy Suburban with 244K miles with a second used engine installed. I have this weird issue where the car will sometimes will shutoff at a stop sign and will start right up. Also it will go in to a limp mode when I’m in stop and go traffic and I would have to restart the engine like 5-10 times before it runs normal again. There is no telling when it do these things. All the sensors from air box to the engine are replaced recently including the throttle body and the sensor. Wondering if this fuel injector replacement will help. Sorry for the long question. Thanks
I wanna say it’s your ecu
@@PedroACastro-g3w thanks for the reply. I finally got rid of the truck
@@batculu hehehe you said fuck it I’m not dealing with it lol
Yea unfortunately I need my suv for work lol
It’s a 19 Chevy suburban having a few misfires at 124000
I already replaced 2 injectors
Now I got another asking to be replaced
I’m just gonna do all 6 left
And go from there
@@PedroACastro-g3w hate to be the bearer of bad news but. If you’re using it for work you’re looking at a guaranteed engine and tranny replacement. And they follow each other. I wish you and everyone else good luck
I am being told there are 3 different injectors, Low pressure, nominal pressure, and high pressure. I want to change all 8 injectors but I don't want to tear it down to figure out what to order. How can I be sure what injectors to order? 2015 Sierra 6.2L L86
Did you ever figure it out? I’m having the same issue.
Exactly what I need to do to my truck. My scanner is giving me a rough idle cold start, random misfire, and lean bank 2 code. I’ve changed spark plugs and wires and used several fuel system cleaners and it hasn’t solved the issue. It has to be bad fuel injectors. My scanner is showing the history of misfires and cylinder 3,4, 7 and 8 have the most misfires. Is this an indication that those cylinders have the bad fuel injectors, or since it’s a p300 code should I just replace all injectors?
Just a thought, carbon build up on intake ports snd valves? These are GDI engines.
Do you need to blead pressure from the fuel line
Do you pull a fuse and run it to release fuel pressure??
Chris, where did you get your injectors from?
Are the S Pipe and Feed Pipe 2 different manufactured components or are they the same from different manufacturers from the list. Currently the S Pipe from Amazon is out of order
The S Pipe in the list is from AC Delco
What is the foam thing for? I’ve heard it’s for sound resonant but mine didn’t have it when I removed the manifold
hey man great video, whats the tube from the manifold into the engine block considered? i broke the plastic part going into the engine and need to figure out what i need to buy for it. its at 2:10
Evap Vent line to purge solenoid. Sorry that happened buddy. But in this line of work, if things don't break from time to time... You're not doing something right. Lol.
I have a 2014 5.3 Chevy my check engine light turned on today I took it to see what the code was and it read fuel system rich how do I go about that?
Did anyone on here have to bleed the high pressure fuel lines before removing them? I read if you don't do that it will spray fuel everywhere. If so how did you do it? I removed the FP relay bit my truck won't start after removing.
Anyone know where they sell that s pipe?. I have a 2016 and it's discontinued everywhere
Very good your video! I was able to perform the entire process on my tahoe 2015! but after all ready and tested, a new code appeared P0172! Do you have a video that talks about this problem, how to fix
Does this fix the weird idle? My 2016 gmc with the 4.3 has a horrible idle. Sometimes feels like it's going to die. It had 17k miles when i bought it, now had 49k miles. I figured it was just something i had to deal with but a friend with same truck and engine said it's the injectors.
Do the new injectors require a "reprogramming"?
Do you have the part numbers for the metal “s” lines that need to be replaced? Thanks!