Fuel Injector Replacement - Cylinder Misfire Fix - 3rd Gen Toyota 4Runner
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- Cylinder Misfire Fix on Toyota 3.4 L 5VZ-FE V6 - 1999 Toyota 4Runner
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Fuel Injector Replacement How to. My 1999 Toyota 4Runner was showing a cylinder misfire in cylinder 4 and then in 1. It was only occurring after the engine had warmed up. Initial startup and driving in the morning would run fine and then later on in the day it would start misfiring, check engine light would come on and the engine would be surging. Turns out when the bad fuel injectors get warmed up this will occur. Very similar to either spark plug, spark plug wire or ignition coil issues except that it occurs more frequently after the engine has warmed up. This video will instruct on how to fix the issue
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A good mechanic is worth his weight in gold.
No kidding right? That or a helpful friend lol
If I had found you a month ago Id have been done three weeks ago! But figuring all this out makes me appreciate how logical and digestible you present it. Baller, gratitude and respect
I really appreciate that and hope it helped a bit even though it sounds like you have it dialed in. Very much appreciated! Have a great new year
Your video was insanely perfect. It was exactly what I needed. Great fast instructions that were to the point without a lot of B.S. but enough precautions to keep a guy from cracking aluminum. Thank you so much. This is my go to vehicle and I only had one day off to get it back on the road.
Really glad it helped out and you’re back at it! That was my goal. Thanks for the feedback too
Saved this video for when my 2000 with 245000 miles gets the issue. Thank you for the info.
Absolutely, I hope it helps
So i had this problem about 3 or 4 years ago and because i couldn't find anything on it i sent to a mechanic and paid around 1000$ to change one fuel injectors! This problem came up just this week and paid for a new fuel injector and did it myself thanks to this video! Thank you a ton! Funny thing is i have the exact car, 99 4runner 6cyl
I’m really glad to hear that. That was my goal posting this video, I’m really glad it helped out
Eli Slagle i
Did you have to replace any of the gaskets?
Damn, I'm in the wrong business.
@@jondoh3471dealerships are failing and mechanics want more pay.
Great video, thanks for taking the time to document this. I had a check engine light up on my 97 tacoma with the same engine about a month ago when it started misfiring. Hooked it up and it said a misfire on cylinder 3 so I replaced the coil pack and the misfire went away and the light went off. Now though my truck feels down on power and is idling rough after its warmed up. After watching your video I'm pretty sure I have at least 1 injector going bad. I'm going to replace all 6 once I get my tax refund.
I wish more videos were as clear and organized and to the point as yours. Excellent. Thank you.
I really appreciate that. I’m glad it helped!
Great job man!!! Thorough, concise and without the pompous “I’m smarter than thou” vibes. Kudos again!
Thank you and I appreciate you watching
Thank you for this video my Tacoma has same results as yours. Replace fuel injectors all is good now.
That’s great to hear! I’m glad this helped out
Absolutely outstanding video. I'm doing this on my 2000 Tacoma. Thanks a lot man
I’m really glad it helped. I was having trouble finding a similar issue/how to.
Thanks for describing the symptoms, very important!
Big help. Great video.
Really glad it helped. Thanks for touching base
I knew I was where I have been trying to get when you described it not doing any misfiring when the engine was cold and then when it was turned off and then back on and running ruff!! Thanks sooo much man!
You’re welcome, hope it helps
You are awesome! Excellent on bolt, nut locations & tools needed. Straight & to the point. I agree wit Vin D truer words were never spoken
Thank you! Just wanted to help a few people out
Thank you so much for the help. I have an 01 I've been working on most of the week. At the same time my wife chooses to take the kids and leave me lol so awesome here waiting on new injectors and going to pop them in and hope it helps.
Hope it helps and thanks for watching. Good luck!
Bruuhhh...fuel injector replacement I have a 2003 Tundra 3.4L v6 and you saved my truck man. Thank you for the guidancevideo it helped reassure me on my first engine fuel injector replacement.
Super glad it helped. That’s why I made it, going it would
Awesome A+ .....Thank you!!! Just finished doing the driver side 3 injectors last week and it's not too bad. I just took my time and label the hoses as they came off . took the throttle body out just as you showed in your video. then took off the upper and lower plenum. I took a piece of card board and drew the pictures of each plenum and punched holes where the screws and bolts went and put in the bolts and screws. once I replaced the 3 injectors and put them back, I just replaced the screws back based on my drawing. I ordered Toyota OEM injectors from the cheapest Toyota dealer online in Massachusetts (EB TOYOTA-BochToyota). I am hoping it will be a while before I start messing with the Passenger side injectors!
You’re welcome. We just hope this continues to help people
Dude, your vid saved my bacon and a ton of cash. It took about 3 hours to disassemble but only 30 minutes to put it all back together. The only thing I forgot to do was replace the crush washers at the banjo bolt on the rails. I learned that when fuel started jetting out and I torqued it as much as I could but I still get a small dribble on the even number cylinder rail. Now I just need to replace all the vacuum hoses and my fuel filter is completely rusted bolts and line, so that is a whole other project 🤦🏻♂️
Really glad I could help. I couldn’t find a good one that summed it all up so I decided that if I could help a few people that would be great. Sorry to here about the rusted bolts. Always the simple projects that turn into a headache
Having the same problem at 240k miles. Ordered 6 new instructors and will follow your steps. Thanks. Only request a parts list in the video discussion in the future. Cheers.
Very helpful. Professional and concise. Thank you.
Very much appreciated. Hope it helped
So the wife’s 2002 started misfiring yesterday and I’m going to be doing this today. Thanks so much for the video it is very thorough and hugely helpful. I have to do the timing belt, water pump, etc. as well. Not sure I’m doing that today at the same time or not. Got all the parts just worried it will turn into a nightmare all weekend deal.
You’re welcome. I really hope it helps and you get it dialed in
This was a great video. Perfect amount of detail and really helpful you point out each bolt/nut and hose that needs to be disconnected.
Really glad to hear that and love seeing that it continues to helps people. I try to keep them simple yet informative.
Dude you are great for this video. Going thru this exact issue right now, on cylinder 6. Just thought I'd say thank you brother, you definitely helped somebody.
I really appreciate you letting me know, glad to have helped as I couldn’t find anything as detailed
Dealing with this issue now cylinder 6 . New coil packs new wires new plugs still a misfire. Hope this helps
@@jtaaea How did it turn out? Mine just started missing...hoping it's the coil. They say #6 could mean a head gasket...
Damn notorious cylinder 6!!!!!
Chasing down this issue now was going to have napa clean it and replace 0 rings and hope it solves it
@@jtaaeaHello, was your cylinder 6 misfire the injector, or did it turn out to be your head gasket?
My brother, appreciate you walking so I can (4) run. Going to try replacing mine once the weather warms up. Same exact problem in the 4th cylinder, been dreading what the shop costs on this were going to be.
Absolutely! I hope it helps
Just commenting to say thanks for the video brother. Bought a set of 6 remanned denso upgraded injectors for mine and they should be here today. Ya'll wish me luck lol.
You’re welcome and good luck!
I had this issue after I replace the spark plugs and wires i thought it was something faulty with what i did but no it was in fact the injectors and this video did help me thank you! They are expensive so what i did is get some from junk yard have them rebuilt and install with new oil rings now I'd recommend adding a little bit of lube on the o rings before install mine ripped the first time in!
Nice easy explanation ! like someone else said a parts list would put it over the moon . Having exactly the same issues to a Tee , I changed pretty much everything but injectors so now this is the next mission . Thanks again
Only parts I think i had to pick up were the o rings and the injectors. The rest was just tools. I used the injectors I was able to get from Orielly
I have this exact same issue on my 5vzfe 3.4L Prado engine and have tried swapping out the spark plugs, leads, air filter, coils and cleaned the MAF sensor. No change. This is my next step, replace one or more injectors. Excellent video btw.
Cooled the injectors while engine running. Yep, back to normal as expected. Swap out happening soon. This video has saved me hundreds. Thanks.
So glad to hear that. I’m really glad you found this video and it helped out. That’s exactly what I wanted for it. Thanks for keeping me updated too
My taco just starting doing the same thing ! Good at cold but misses badly when she warms up. Changed plugs, wires and coil packs and it still shows #4 miss fire ! I tore her down and going to replace all 6 injectors from MotorWest Performance and I'll see how she does after that. Thanks for the info. I know your posting was awhile back but it might have saved me and Taco !
I really hope so. Glad to be of any type of help and have a great weekend!
Hello, was your cylinder 4 misfire the injector, or did it turn out to be your head gasket?
What’s the update? My does the same thing. Good at cold. Misfire 4 and 5 when warm and/or fill up the gas tank. Also getting too lean bank 1. I replaced spark plugs, spark wires, all ignition coils (OEM), MAF (OEM), charcoal canister with purge valve (OEM), gas cap, catalytic converter, thermostat and still getting the misfire codes. Perhaps fuel injectors are next 🤞🏼
Excellent video. Concise, precise and very informative. Good job. But I now I have to dig in and get the job done. Thanks.
Really glad it helped.
One hell of a how my man..!!!..helped me out a ton thanks a million!!
Absolutely, I’m really glad it helped out.
That's what happened to my 4r too. Thanks for the suggestion.
You’re welcome. I hope it helps
hey nicely done showing all the items used at the start of the video ...
Thanks for watching
Here's another tip for those who don't have enough torque and a simple one.
Whenever I use a wrench/socket and I know it needs some good power to initially break it loose, I would use my mallet (rubber hammer) to give it a nudge. Importantly, I make sure the wrench/socket is seated all the way flat beforehand.
Good call
Great video! Thanks for sharing! I just did all 6 injectors in my 97 4Runner and it seems to be cured. Probably wouldn’t have tried it if not for your tutorial. Cheers!
That’s really great to hear. I’m glad it all worked out!
do you know how hard it was to find a video on this engine? HARD. LOL. thank you for showing how it's done with no BS, i can now do my 99 Prado, oh BTW. hello from Australia
You’re welcome, glad it helps and have a great new year!
@@FreedomCrawler happy new year
Great video and straight too the point! Next time put a rag so nothing can fall into that manifold. I’ve heard horror stories!
Good call!
Oh no! You bought the duralast fuel filter! I'm having the same exact problem (misfire on #4); initially changed my air filter and fuel filter. Had a hell of a time struggling with a leaky new fuel filter. Turns out the duralast ones just suck! After much pain and frustration (not to mention gas all over me), I finally just got a better one from Napa. Not going to AutoZone anymore! Gonna troubleshoot my ignition coils this weekend, but thinking mine is also a fuel injector.
Good call, that or wix. Also oem isn’t that much more. Under $40
Just got a P0305 on my 3rd gen - checked the plug and the coil and they are good - thinking (hoping) it's the injector ...fingers crossed- great informative video !
Was it the injector?
Tackling this tomorrow to diagnose injectors and find an oil leak. Now that I get a good look I may just go ahead and get all six OEM injectors. Thanks
This is one of the last things it boils down to. I just spent about 1200 bucks in parts and labor, and I did two of the jobs myself for coils and replacing the IAC valve. Idle is improved, but it still misfires. I've been dealing with this it feels for half a year. I just learned about injectors which I didn't think of and it seems to be my issue. And it was mentioned by a shop as a suggestion the other day.
I’m sorry to hear that. I really hope this helps
@CaptainFALKEN you can also pull the Injectors and have them sent out to be cleaned, blueprinted, and tuned. I have pulled my injectors and sent them out, and most were running at 70-80% and 1 running at less than 50%. RC Fuel Injection in Torrance Ca specializes in blue printing and cleaning injectors. Their turn around time is a couple days also with fast shipping. They also include all new gaskets and seals for all the injectors. I was recommended this place from friends who race their cars, and they mentioned even brand new high performance inj and oem inj can be out of spec, so they have to have them tested.
I have a 1999 with same issue but as some pple have noted, tried other things to waste our money at and had suspicion of the fuel injector so seeing yours does the VERY same thing as mine to the T with the warm up and shutting it off so I hope this fixes it . Thx for posting
Absolutely, I really hope this helps!
Freedom Crawler she runs like a top now but had a few minor misfires now and again but I believe just built up gunk or maybe carbon burning off from running rich but I found an injector at thirlbys for only 50$. Just wanted to note that for anyone who may read this
Awesome! Maybe run a can of seafoam through it. I like to get it low on gas and then toss a whole can in and drive it to almost e then do a fill up with premium to flush it all out
Big help bro thanks! Got it done! Now do the abs module lol
Awesome! Glad it helped
Extremely helpful video! Thx for the guidance and knowledge!!
You’re welcome, hope it helped
This video deserves many more likes. This is great, thank you! I have the same issues with cylinder 6 and sometimes 5, plus a "random misfire" code. Went through it with new denso plugs and ngk wires, and a new fuel filter and its still misfiring on cylinder 6. So Im going to try this with 6 new injectors. Once again, thank you sir, this was VERY helpful to those of us who are mechanically inclined (or not) but may not have had to dig into this motor as much as this yet.
Absolutely, I’m really glad it was able to help out. I couldn’t find good info all in one place so I’m glad this helped
Did you change your fuel injectors? I have the exact same problem, wanted to know what solved it for you
oh dang I am so glad I have a Toyota Avalon as long as there is take off the fuel rail and you have access to all the injectors flip them over attached
in other words a hell of a lot easier than it is on your car in the video!
Thanks awesome video. My only advice would be to cover those intake holes. Last thing you want is something falling in there.
Absolutely agree. Thanks for that!
Your vid is gold! Nice editing leaving out dead time. I have a 99 Prerunner I bought new(now has 206K miles on it). I was driving back to my house and all of the sudden it was like I was driving on rumble strips at 60 mph. I pulled over to make sure wheel bolts were not loose, I didn't know what was going on. I got home and found out number 5 is not firing. I bought one new coil, switched them out. But I know they all fire because I can pull the wire with the coil on them and hear and see the spark on each one. I changed all the plugs and they were all dry, I thought the one not firing might be wet or look different but no, they all looked the same so seems like an injector(?) It also runs perfect, runs great since I changed the plugs, they had 100K on them. But yeah, it's starts missing when it's warmed up for a while. I have my injectors coming in the mail. I would be real intimidated to do it myself but your vid gave me a lot of confidence that I can do it. Thanks a lot! btw if one coil was bad, would it mean 2 pistons wouldn't be firing since each coil controls 2 plugs?
I’m really glad this helps. That’s really what I was hoping for, it was driving me crazy lol
In a weird way I'm kind of looking forward to it now. I have a question, when the fuel rails are out, is it best to install the injectors in the rail first or to the engine first? I read all comments but nobody asked.
scolopede I don’t think it matters but for me it was easier to put them in the rail first and then line every thing up from there
I'm only posting this because it might help somebody else out. Original problem was that #5 wasn't firing. I received 6 refurbished injectors and started taking things apart, it was a little rough for me the first time, not knowing what I was doing. So I put it all back together and did a test run around the block, I didn't think I was going to make it back to my driveway and when I did, it died, right as a pulled in. I checked the hoses over and over again, it was all where it was supposed to be. So I thought I might have some bad refurbished injectors and that if I put the old ones back in, it would work like it did before I started. So I took it apart again, much easier the second time. I put the old injectors back in but I left the refurbished injector in #5 in case it was a good injector. It worked but I still had one misfiring piston. I was fired up about that because I was getting desperate and narrowed the problem down, getting closer and I needed my truck working. It was #5 again, not firing so I bought a "new" injector. I took plenums off again, soooo easy a third time, and put the new one in. It's running perfect now, it hasn't run this well in some years. I cleaned the old ones when I had that out also. I had a bad experience with bad refurb injectors so I'm going new if I have that prob again and might be good to get an injector tester.
Ha! Im glad i found this vid. Described all my symptoms almost to a T. I just cleaned iac valve and it was gummed up. Helped my idling a bit but i still had the symptoms (i accidentally left a coil unplugged and had a p1300 saved in my history so i was freaking out about that for about a week before the code cleared) just today i changed the fuel filter and the fuel coming from the tank was clear but the fuel from the filter was coming out contaminated. It runs even better but now im thinking the fuel injectors may be dirty. I am now confident i have my issue and im going to run some cleaner through it for a while and see if i cant go the cheap route. But if i have to change or clean any i know how to do it now. Thank you!
Glad you found it also. Really hope it helps
Ive had the opposite problem in my 4runner. Usually acts up when its cold and once it warms up runs like a champ!!
Almost sounds like it needs a tune up
No it was actually the injector. First it was cylinder number one. And then cylinder 3. Ebay special did the trick so shes good now👍
Freedom Crawler and your video is super helpful!!
Awesome video! Doing this for a 2002 Tacoma v6 with 300k this coming weekend. I'll be replacing all 6 since this doesn't look like something I want to do twice. Thanks for the step by step!
I agree 100%. Do it once and done
Nice video help me with my tacoma . Don't buy cheap injector on ebay spend little more I learn hard way.
^ solid advice
Good job !! Hopefully that will solve your problem. Fingers crossed. I think it was just pissed off because it didn't get to go to Moab lol.
+moab wheeling I agree. It started just before the trip. Seems to be good to go nkw
My 2002 4Runner is misfiring on 3. I remove the coil and plug. The plug was wet with gas. Figured I was getting fuel, so I ordered a set of plugs and one coil.
I hope this helped and you get it knocked out
Hey buddy - just to let you know, this is the best video on line of the injector replacement. Everyone else's is full of extraneous nonsense, so good job on that. I'm about to do the same thing today on my 97. One thing which I noticed you did NOT mention when diagnosing the problem was doing a compression check on the misfiring cylindars. (Can borrow a gauge from O'Rielly for this). Any reason you chose not to check compression? Glad to hear it's still running strong.
I really appreciate that. I agree it would be a great time for a compression test as well. As I only had about 150k on the rig at the time I personally wasn’t too worried about it but it wouldn’t have hurt
Excellent Commando Operation!
Thank you
02 4RNR with 250,000 doing the EXACT same thing. I wasted $150 on plugs, wires and a coil pack yesterday. UGH. Time to do the injectors.
Damn, sorry to hear that. Hope this helps. The refurbished ones at orielly are still going strong in it
@@FreedomCrawler I was looking on Autozone just a minute ago. They have 2 that they sell that are $300 EACH! LOL! NO THANK YOU. I'll check out O'Rileys. Thanks for the suggestion and thanks for posting the video.
Absolutely, good luck!
@@FreedomCrawler well. I changed all 6 injectors. The misfire went away but now I have a new problem. P0172 - Bank 1 system too rich. LOL I'm guessing that one or more of the "new" ones are actually bad. Yay. I get to tear the top of the motor apart again. hahahaahahahaha
Dude this video saved me! Thanks for sharing!!
You’re welcome, really glad it helped
Thank you for the great video! Having this issue now
Absolute I hope it helps
@@FreedomCrawler I brought it to work today, new spark plugs,wires, and ignition coils and still having the same issue. Luckily I have my new denso injectors and everything I need to tackle the Job. It’s just hard working Night Shift lol. But it’ll get done that’s for sure 🫡
God damn have been back to my mechanic multiple times for this same issue and he can’t figure it out and I just put a 60k motor into it I’ll give this a shot! 👍
Great Video - very helpful. So here's my issue - I have a '99 4Runner SR5 with 253K miles. I started with a Code P0171 (Lean Bank 1) coupled with misfire on cylinder 2. I decided I would go ahead and replace all injectors (new Denso injectors) and I replaced the fuel filter. After completing the job I got a P0172 (Rich Condition Bank 1). I thought perhaps the TPS or MAF went bad, so i replaced them both with OEM. Condition persisted. Next I replaced the ETC (Temp Control) near the passenger fuel rail. Condition persists. I'm stumped. A Rich condition could be a plugged return fuel line (which I verified it was not plugged). I had already replaced front O2 sensor 3 months ago, so I thought rear O2 sensor was bad - I unplugged it, reset computer and code returned almost immediately, so it's not the O2 sensors. I think I may have a stuck injector. Any ideas would be most appreciated. I have no idea how to test each injector.
That’s a great question. There’s some good videos out on how to test injectors but I have never had to personally do it, what I would probably do was swap the injectors on each rail with eachother. If the code follows the injectors then you know it’s an injector issue. If everything stays the same then you can most likely rule out injectors. That won’t work if there isn’t two banks, one coming off each set of cylinders though. If that’s the case then testing the injectors individually may be your best next step
I wish I could help more
I have a 02 Tacoma 3.4. Really hesitating on acceleration when warmed up. When cold, it’s fine. Idles fine, and also won’t do it when I’m parked and revving engine to 2500 rpm. Replaced MAF, TPS, ignition coils, fuel pump and both cats. Think I’ve got same issue? Driving me crazy
subscribed Keep doing 3rd GEN videos I have one that I want to make 4x4
any updates? just wondering if you had any other injectors go bad and had to do this job again. I'm going to do mine finally. Only number one is bad but am replacing all since it has over 200k on it. going to replace plugs and wires also for good measure. Your video is the best out there so am going to watch a couple more times before doing it. Thank you.
I really appreciate that thank you. I was really hoping it would help.
Everything worked perfectly and haven’t had any other issues with it. Good luck!
Don't forget to cover the holes until your done otherwise you might be unlucky like me and watch a washer that was apparently stuck to the fuel rail go flying down in slow motion into your motor!!! 30 miles round trip to Walmart to get a flexible Magnet - I hope it fuckn works!
^ GREAT advice. Hope it worked out
Good video, thorough. Thanks.
You’re welcome. Hope it helps
I think I am gonna tackle this this weekend. Getting a #2 misfire. I have 250k miles and think I will just replace all injectors since I will open it all up anyway. Did you buy new gaskets for the plenum and intake?
No I did not. They were metal and I thought I read somewhere that they were reusable. Haven’t had an issue with them
Sounds like a good plan. Should help alot
I would defiantly use a torque wrench 🔧 and torque to specs
Up date : Changed out all the injectors with MotorWest Performance Matched injectors and my Taco runs so smooth, just like new !
That’s so great to hear!
So I was having the same problem. Misfire on one and three fixed those two now got a misfire on 4 wtf? Could it be anything else other than fuel injectors? It starts fine then when it warms up it's misfiring
I don't have any lights on and the engine doesn't jerk or anything but there's a strong fume coming out my 4runner exhaust and my oil smells like gas. No white or blue smoke. Could it be the injector? Got 246k miles on
Oddly enough mine did exactly the same thing.... oil stank like gas and odd fumes and smell around the engine.I pulled the truck out of use and let it sit a few weeks while I tried to sort out the issue and save some repair dollars up. Oddly enough, next time I started it, the issue had vanished, except for the gassy oil smell. I had the oil changed and the issue seems to be a non-issue. That was 25K miles ago.
I have a 95 &1/2 Tacoma 3400 4 cam 24 engine & had an issue twice with a plug wire getting fried (in one tiny spot) so that it seemed that the engine overheated (it didn't) it would barely run ... & water was pouring out my tailpipe. (turned out to be condensation) otherwise I couldn't find anything wrong with it, no oil in water/no water in oil ...took it to Toyota ... they put it on the machine, new plug wires solved problem. just sayin ... it happened to me. This happened twice, same truck but 3-4 years apart. cost 400$ to find it was a bad plug wire. ouch. at 145K miles now I looking at DIY injector cleaning. & thx for the vid.
+Resolute absolutely and thanks for the info. Always good to have relative information.
This solved my issue and hopefully if it ever comes up it'll be an easy fix for you
Great video bro!!! best I have seen in a while. Did that do the job for you...?
Thank you! Yes, it’s still going strong
@@FreedomCrawler I just did #6 on my daughters 1999. Thanks to you're instructional video it was a breeze. Also replaced o-rings on 2 and 4. Performed TB cleaning and also MAF sensor cleaning. Oh, and Seafoam. So far so good.
So glad to hear that. Great job and thanks for following up
I only have to do the #1cylinder injector, can I get away with only taking off the top part of the plenum?
I am replacing my injectors tomorrow... I have the p0304 which is misfire in cylinder 4. However you said yours only misfires when it’s warm, mine misfires as soon as I crank it up when it’s cold I already swapped coils and replaced all plugs and wires.. do you think the injectors will solve my problem
I would think so, it’s possible yours may have got to the point that they don’t want to work at all. Keep me posted please, I’m interested in hearing how it goes
If the misfire clears up a bit as the engine warms up, you've got head gasket issues messing with your compression rate, triggering the code.
xHaBiiiTz did the fuel injector work and help with the misfire?
Fantastic video! At 9:20, you mentioned that you were going to clean it- I assume you are referring to the exposed parts of the motor- what is your process for this? Thanks
Carb or brake parts cleaner. Just make sure you block off any areas where things can fall into the engine or intakes
And thank you!
Great Video!! Thanks so much. I have a bad injector #2 (V6 3.4 Engine -4Runner) and I was thinking about getting an OEM from (Toyota dealer $138). just wondering where you picked up your injector. Also I wanted to get some O'rings as spare but I'm afraid they may not fit and may leak. have you had any issues with leaking O'ring or problem with Injectors?
I didn’t have any issues with the O-rings, picked them up and the injectors from Orielly. Really glad this helped
great video
+Freedom Crawler excellent go-through. I'm getting intermittent misfires on Cyl 1, wires and plugs are fairly recent. So, I replaced 3 coils thinking I had it in her bag (15 minute job)...still getting the misfire. That intake plenum is a mound of metal, so I've been fairly avoiding a few things until now. Question: While you have the intake assembly off, beyond a good cleaning inside, what else would be easily accessed to replace with that area clear? I'm considering valve cover gasket. You mentioned fuel filter, but I didn't see it replaced...anything else you'd do if budget wasn't an issue that week?
I would replace all the fuel injectors, maybe clean the maf and do the fuel filter if needed. I didn’t replace mine in this video because after looking at it I thought it was still the factory one but it had actually been replaced.
Outside of that I’m not really sure if I could guide you on anything else to replace then.
Thanks for reaching out too. Have a great weekend
Did yours take longer to crank when warm? My 3.4l V6 Tacoma starts right up when cold but if I drive it around for 30 min, shut it off and let it sit for 5-10 min then try to fire it up, it take 3x as long to start! Thinking a leaking injector. Great video!
My 2001 Tacoma with the 3.4L is hard to start and dies Im guessing the fuel injectors are the problem. Just a Bank 1 lean code. Cylinder 1 check has 0.01 ohms from injector.. Runs like shit.
Backfires through intake.
This may be the solution for you
HI/
I have a problem with my 4r 3.4 5vzfe
the injector in my car got damaged with the number 23209-62030, I have another 23209-62040, also from this engine. They look different, but the size is the same. Do you know if they will match? do they have the same job characteristics? Best regards
That’s a great question that I unfortunately don’t know the answer too. It sounds like it will work but you may want to cross reference the part numbers online or call the manufacturer.
@@FreedomCrawler thank you, I was browsing the American forum and there were similar topics from which it works
hey man, nice vid, if it depends on me i'll send you kudos, want to ask you a couple of questions, first, did you replace plenum both gaskets or can be reused? from lower point, what else you need to replace knock sensor bank 1 / temp sensor?
I did not replace the plenum gaskets and years later still know issues with that.
Great question on the sensor. Usually that’s an exhaust sensor right? If so I usually just unplug the batter, swap them out and roll
I get in cylinder 6 and my shakes bad when I turn it on. One of my friends told me it could be the protection in between the engine. Yeah i think the gaskets
Have you swapped the spark plugs recently?
@@FreedomCrawler yeah I did and I still got the miss fire code, then my friend and I noticed that oil was leaking a little bit through the spark plugs holes. Which he said maybe the head gaskets were worn out
Could very well be
my 2001 4runner is doing this same thing... runs good when first start driving it... then it starts to miss and run rough... I've changed all three coils, new plugs and wires... and it's still missing when it warms up
This may be your solution
This mechanic help me a lot welll done thank you
Solve my problem
Really glad I could help.
I just watched your exulant tutorial! I have an 07 4runner that needs the fuel injector replaced. How long should it take do you think and is there much difference between your 99 and an 07?
I really appreciate it. I think I remember it just taking a couple hours tops. Longer since I was filming. Not sure on major difference in those years to be honest but if it’s the same engine it should be similar
Where do you suggest buying fuel injectors, new or rebuilt?
Also is it worth it to try cleaning them instead?
Totally up to you in regards to cleaning, I figured if I already had them out may as well replace the ones I knew that were bad or all of them if you can.
I got rebuilt ones for about half the price. Autozone, orielly, Napa should all have them. Mine are from autozone
I replaced one of my injectors but now I’m getting fuel leaking out. Even with new o rings and seals. What could be causing this? I didn’t pull the fuel rail all the way out, but that’s my next move to see if there’s any broken seals stuck in there
Ok, so I took out the injector again to see if there was anything weird going on and it looks like the o ring got pinched in the rail somehow causing it to not seal. I’m at the auto parts store getting new o rings now and I’ll let you all know how it goes.
Good
Thank you
I had that same hat. I bought a coil earlier it wasnt the coil did a fuel injector test once over and it was clearly the injector not the coil I'll be taking the 80 dollar ignition coil back tomo screw that way overpriced parts I'm not sure what an injector costs but I'm about to try and clean fix this one first before I get any
The rebuilt ones are pretty inexpensive
Thankyou for this video.
You’re welcome, really just wanted to help others out.
What if it does it when cold but not when warmed up?
It may still be the issue, could just be firing better after it’s good to go. Spark plugs good?
Man this has helped alot ill guve ut a try
Thank you, good luck!
what if I'm having the opposite problem ? Start is very rough in the morning, sometimes it takes a few tries, sometimes it takes awhile and when it finally does start it sounds rough but once warm runs great. Every other start of the day is perfectly fine, idles good too. Not sure.. but going to check spark plugs to start with.
Sounds like a good time up may be in order. Did you already do that?
@@FreedomCrawler a time up?. sorry I don't understand
My apologies. Tune up
Great video thanks!
You’re welcome, hope it helps!
Any tips for diagnosing a bad injector? How did you determine which 2 were faulty?
I replaced them based on the cylinder codes that were showing up. You can test them by adding a little power to them but you’d have to check online for how to do it. You can also take them to a shop and have them tested. Honestly though if you have it all apart already it doesn’t hurt to replace them. I used rebuilt ones from orielly and they are still going strong
Nice video! Thanks. Do the injectors have upper and lower grommets or just lowers? Should they be replaced like the o rings? Or are they good to reuse? Thanks
I’m not entirely sure in regards to the grommets. O rings are for sure worth doing though
I need to find this video for the 2.7L
I hope there’s a solid one out there for you! Or that this helped a little bit
I am having problems with my 5VZ FE engine, white exhaust and smells of gas. Is the injector(s) the culprit? What was your engine's symptoms? Thanks
Throwing codes and running rough.
I’m not sure white exhaust and smells of gas is injector culprit but could be. You throwing any codes or running rough?
Thanks for your video. How much fuel came out when you unbolted the fuel rails? Thanks!
Very little. It just purged the pressure a bit and soaked a blue rag or two
You don't need to get gaskets for the plenum?
I reused the metal gaskets with no issue. If you see a visible issue I’d replace it but otherwise the metal ones in that area seem to be good to go
@@FreedomCrawler good to know thanks I'm thinking of tackling this on my 1999 4runner limited in the next little while.