After watching your video carefully, I replaced my fuel injection in 5 hours, and it worked perfectly. I think I am ready for another 200K on my Suburban. Thank you for a great example.
Did this a week ago and man is she running smooth. Thanks for your awesome instructions which made this possible!!! I took it all apart in about an hour on a Friday night and it took me about 3 hours to get it back together. I took pics of all the bolts so as not to misplace any. She get's better fuel economy too.
Sometimes seeing someone else do it can give you the confidence to do it yourself. I’ve been putting this repair off about a year and my suburban has been sitting the entire time. I now have a renewed interest. Thank you!
I know this vid is over two years old, but you are the man, can't thank you enough as me and my son tackled this today on his 99 K1500, step by step.....THANK YOU!!!
Thank you so much. This was a truly great video. I am the original owner of my 99 Suburban. It now has 170K miles and it really never ran right (misfires, check engine light always on… you know the drill). It had the older style injectors replaced about 100K miles ago. It also had the lower intake gaskets replaced twice (water leaks). Repairs like this kept the truck running halfway decent and generally not leaking. But it still never ran right. I just did this MFI fuel injector conversion. I also opted not to move the AC compressor. I did it in a single afternoon. Really not too difficult, but only because I watched your video and knew exactly what to do. Without the video, I would not have even tried it. The truck runs so much better now. Just passed NJ inspection, no problem. Definitely saved this truck from an early grave.
You're the first person I've ever heard or kind of met that even knew who Temple it is. I have a daughter with autism and I have read her book and it was incredibly enlightening. You should try doing this when you're 5 foot 10 it's flipping miserable! Of course my truck sets up higher in my driveway is about 2 degrees short of being an Olympic ski jump. No joke if you drop a socket in my driveway start walking to the street cuz that's where you're going to find it. I enjoyed the video
Hey thanks Brian! Did this in a '99 Denali I got for free cuz it was misfiring badly. I diagnosed it to a couple of bad injectors and watched your video because I haven't done one of these before. All good now and runs like a champ!
thanks brain for your time I replaced the spider a few months ago and i think the upper gasket is leaking so im going to do it again could you tell me the symptons of a leaking upper gasket leak also when i was done the top of the spider was not all the way thru the intake plug went in but it was like the spider assy was lower then when i took it apart also you did not talk about the torque sequence on the reinstall and the proper way to re-tighten the upper intake if i jump on it truck starts acting like its not getting enough fuel starts to like miss drive it easy no problems expect bad gas mileage idles fines and starts right up
Thank You so much for an outstanding demo. I am a mechanic from days gone by (70 to 90) and now own a 1998 chevy truck with injector problems. every thing was very helpfull---Very well detailed and to the point. Started my project and finished in just under 2 hours.THANKS AGAIN
@@ronvonbargen8411 The video was only half an hour [so perhaps 1 hour for the entire job]. With the right tools handy, it could easily be done in two hours.
Hey Brian, Not sure it matters any more but the SCPI stands for Sequential Centeral Port Injection. Crappy Diesel type poppet injectors that were opened by a valve inside the middle of the spider unit. For those who do not know this style injector will not operate if the fuel pressure gets below 50 PSI. The new unit is true Multi Port Injection where the injector pintle is opened via a solenoid at the end of each injector. This is why there is a couple of wires heading down the fuel lines for each injector. This was the best fix I ever did on my 98 Silverado.
There are situations under the spider cover that can damage multi port wires, valve leakage and fire pops, plastic fire and heat sufficient to melt wire insulation. Multi port tubes are bigger diam, I had one break near the intake manifold, so engine totally fills with fuel. I recommend the SCPI with pintel torpedoes up in the spider body, a line break is less likely and does not fill engine with fuel. Mike Reynolds, below, many new parts and no luck - sometimes the bearings on the distributor, and the gear, are so worn that consistent spark is impossible. I grind a spare cap to expose the brass and check the spark life at each line to plugs, when you short the STRONG spark the engine slows. When you short a dead cylinder the engine does not slow. Dead cylinder can be due to crud after distributor goes bad, or due to dead pintel in spider. The cap grind trick is rather definitive, you can see faulty spark power, 1/3 size sparks with an occasional full size spark means the distributor bearings wobble and the trigger is confused, timing is off.
I am handy with an engine, but was worried about getting everything out of the way and/or doing them in the right order. Followed you sequence and was a quick disassemble and reassemble. Can't thank you enough for taking the time to make and post this video. I brilliantly decided to do this on the coldest day we have had this year so took a bit longer as I stuck a heater under the hood to warm everything up for a bit to try and avoid the tabs on the old injectors snapping off and falling into the engine. It worked though. Gave me time to get a couple cups of coffee and warm myself back up.
Just replaced this and the fuel pressure regulator on a friends 1996 K1500 5.7L Tahoe. Watched the video. Total job took 3 hrs 30 mins start to finish. Thanks for posting this video
Thanks Brian! Did this upgrade this weekend and it was much easier after watching this. Fuel pressure regulator was leaking and was hard to start hot, so did the whole upgrade instead of just the FPR. Took about 2 hours of actual work - and 2 more to clean the carbon mess that resided under that cover. The tip of putting the injectors in first, then pushing the spider down until it locked was spot on a well. My Vortec runs so much smoother now. Thanks again!
Enjoyed the video and learned a lot. I even enjoyed all the commentary. I had never seen the inner workings of the spider injector system. Thanks for taking the time to make detailed videos.
Thank you for the video. I followed your instructions yesterday to do my friends 79 suburban 5.7 liter. Thanks so much- couldn't have done it without the video. The spider cost 300 bucks at Auto Zone and they had it in stock. I saw the same part at other places for 450 bucks. On his 79 I left the ac compressor, but did have to remove the thermostat housing to allow the manifold to lift up and off the heads, as part of it was directly underneath.
man i love your style of demonstration straight to the point and articulate in a average joe , so everyone understands type way... keep up the good work you've helped mw on several projects...
I have thirty years plus mechanical experience. I'' ll say you talk a lot, but it is both with humor or educational, lol. Keep it up, I'm scribing. Well Done.
Success! I got mine in! I heated the tubing midly with a heat gun.. got it just right. No stress on the tubing, no collapse. Of course my engine is out on a stand so that made a big diff. Thanks again. On to detail and re-assembly!
Thanks Brian! I've been watching your videos over the past few years and I always watch your videos before I repair something I'm not familiar with. I'm getting ready to change out my spider. Good teacher and easy on the ears. Thanks for sharing! Tony
Brian,Thanks for the video.After installing the spider,I went to start the truck and a made a knocking sound and the engine seemed to just freeze up.It won't start at all.Do you have any idea what could be wrong?
The crowsfoot flarenut wrench that you use to disconnect the fuel lines in the back is the way to go. The firewall makes it tight to fit a normal 16mm wrench in there. The crowsfoot wrench made it easy. I just replaced a leaking fuel pressure regulator in mine. A lot of work just to replace that one little part but necessary. Thanks for the video.
Well, Just picked a MPFi at AZ. I did not want to have to replace the original but.. The fuel in O-ring was split and I did not want to have any fires or pay 9.00 for one from the dealer. Installing a new crate 350 for a 305, so might as well do it right. Thanks for the informative videos! Enjoy the the general talk that goes along with your videos. You must be a Sagitarian..
Thanks Brian, kept my iPad handy for a step by step and pulled it apart in no time. Took a little longer to put it back together. I actually had about 1/2 inch of standing gas in the main connector of "the creature of darkness." I had no codes, but the symptoms all seemed right. Runs like a dream now. Thanks again.
Thanks for this video! I have been having engine misfires and running rich. With the help of this video I successfully swapped out the spider injector and voila! The truck has never run better! Thanks again!
I had the strangest thing happen after changing the spider , I still have not been able to figure it out. After replacing the spider I took it for a test drive and within 50 feet of driving it I pushed the AC button and smoke started coming out of the AC controller it fired the controller. I have traced all the wiring inside and have not found any bad wires. The AC has been replaced all the Air blend motors have been changed. Not sure if there is one for the hot to cold. The AC work great before changing the spider so I thought I might has pinched a wire or forgot a ground but everything looks fine, I replaced the AC unit the high pressure cutout switch and the dryer, put a new controller in and it smokes it when turning off the fan switch. Not sure if anyone has ran into this problem but I thought I would put it out there I watched your video to go back through all the parts and wiring being removed to see if anything would click just in case I missed something thanks for the great video.
I just used your vidso to do this in my 97 c1500 305 v8. This was a huge help and took the guesswork out of what had to be removed and what didn't. Thanks a lot man!!!!! Keep wrenching and keep making vids we appreciate it!!!!
how do you safely remove the new style injectors? I have removed many of the old style but I have never had to remove the new style. I don't want to remove the lower intake only the upper and I am a bit concerned if I just pry them out they may break off.
Great help thank you. Im curious what your take on injector cleaners.additives ect. Do they work or should I just get down to it and replace spyder (injectors spyder was diagnosed bad) thanks again
Just wanted to add another thanks Brian... great video. I swapped out the CSFI on my 99 K1500... big job for me, but got it done. Super hard to get the injector body down in the bracket....another set of hands would have made it much easier! Anyway...just wanted to say THANKS! People helping people...love the attitude you have!
Thank you again Brian for another very helpful video....but what about torque specs on these bolts? I kno you gotta tighten up these from the inside and work you way outside in a chris x pattern but does torque really matter on these bolts?....can you tighten these up too much and strip them?...am about to replace the spider in my 00 savana...dont own a torque wrench this is why am asking. ..Thank you Brian.
Thank you for your super informative video! You explained every step in detail which makes it so easy to follow along. Gave me the confidence I needed to tackle this job myself!
Great video on procedure of swapping it out! Any info on diagnosing a bad "Spider Injector"? You mentioned in the video the truck had P172/P175 as lean (I believe you misspoke since those are rich codes and the pcm would remove fuel with a negative fuel trim). Was it misfiring? I am wrenching on a 1999 5.7l, P0172/P0175. Really no symptoms except a CEL. Fuel pressure is 62-66 but did bleed off over 1 hour to 20psi (but have to consider the fuel pressure gauge leaking). Engine runs fine/smooth w/o misfires. Fuel trim is buried negative at idle and slightly better cruising, BUT has compensated to 14.7:1 with the o2 sensors switching rich to lean. Coolant temp/IAT match cold, MAF is around 2400htz at idle. I did pull the upper plenum for a look, no clean spots under the lines or under the fuel pressure regulator in dripping fuel. I think the fuel pressure regulator is releasing fuel into the plenum through the vacuum port, but there is no evidence of this such as a clean area under it. I really dont want to make a bad call on a $50 fuel pressure regulator or a $300 spider injector based on the evidence I have. Suggestions?
I have 1998 5.7 vortec and it has developed a miss or skip that I can't find, i have changed everything electrical, but now thinking spider may be the culprit, but i don't think I'm a good enough wrench to tackle this project.....dude I wish you were in North florida, cause you are the man on this fix and would love if you did mine. thanks for posting video.
Thanks a million, needed to change my lower intake manifold gasket and while i had it off might as well change the injectors, 220,000 miles, wont be long before they would give me problems anyway, looks like i ordered the same that you have in the video. lots of carbon build up on the front 4 so it its preventive maintance time.
Thanks Brian! Great video! Van runs great now! Number 5 cylinder was running lean. Figured it had a bad injector. Tried fuel additives of course none if them worked. Not wanting to burn a valve I just knew I needed to replace that injector. I was worried it was a little over my head. After watching your video and going back to it when needed it was a breeze! I appreciate it so much that you posted this video! Thanks again!
Nice video, I'm working on a 96 4.3 Vortect atm and there is a possibility I might have to change the spider injectors. I had 2 questions if you don't mind 1 what was the symptom of that vehicle and what was the mileage of that car? if you still remember. Thank You
Brian Thanks for the video. I actually watched it 3 times then changed the spiders on my K1500 Chevy truck. Without your help I wouldn't of been able to dot it. It was tough though I would not want to do it again. I salute you good sir.
Very good, thank you. I have to do my 99 Suburban real soon, 240k on it & the spider assy is the only thing I haven't replaced. Now I will feel a little better about doing this job.
Hello Brian, I just got my car diagnosed and the mechanic said that it is the fuel injection spider. Can you please tell me what the symptoms for this to be the problem? I have a 99 chevy suburban and what my car does is some days in the morning when is cold it just don’t start, but the next day I try it again and it starts right away is like this car is possess. In addition the car doesn’t have the check engine light on. Please help, I’m a full time students and I can’t afford to fix this right now. thank you for your excellent videos. I think you be a great sales men.
Thanks for the video. I have a 1999 5.0 express van and could not find a video of this conversion for my van. I feared this job would be more difficult on a van as everything is. It turned out to be a very easy job. Having access through the cab hatch eliminated having to remove the compressor and belt.
Thank you sir for this very informative video. I may be facing this task in the near future. Also I absolutely agree with you on freedom. I just wish more people cared about the freedom we're trying to keep.
Fantastic, since youtube bans music playing while you shoot your vids , I find the commentary quite enlightening. “The only place success comes before work is in the dictionary.” Merci Steve.
Would bad spider injector trigger p0300 , I had problem today with my 1999 gmc suburban it's hasitating on idel and lost power on driving the car barley go forward , I checked with my scanner it's say p0300 only nothing eles .
Thank You Brian for the video. It helped me get a true perspective on the job at hand and it was there to always go back to during the weekend job. It was rewarding to complete the job with your guidance and the result was awesome after the test drive yesterday. Thank You again for taking the time to make this video.
Thanks for your infoe, Later on today..Wednesday...I am going to do my own work on my 1996 Chevy 3/4 ton. This is the first time I have ever seen what you call a spider injection. At first Dave and I could not find the Injectors, so he told me to do some research. Looking at your video, I am sure it will help me a lot. Thank you.
Have you ever had one that will not clip in??? If so do they make just replacement plastic ends?? I just put one on mine and all clipped in except 6,8.. Have no idea why.. Nothing is broke but will not clip into place? Thanks!
This is the de facto video on how to do a spider. With some salient folk philosophy thrown in. Thanks a ton for this video. I have since done three of these rascals. This is one of those jobs that looks daunting at first, but is easy if you do what brian says. These things are very brittle. Like he says, warm it up if it's below 70 degrees. Use the included tool to twist the legs into place. If you don't, your chances of breaking one of the legs goes up 10x. I will add one observation, of course. Do NOT insert the white nozzles until you are 100% sure everything is situated correctly. If you need to take one out, forget it. Impossible. I had to make a tool out of a paint can opener to extract stuck nozzles and on a van, that's about an hour apiece in less than comfortable conditions. They give you a couple extra nozzles in a baggy. For the life of me, I can't figure out why. Thanks again, Brian,. Great video.
Hey Brian thanks for the video, my question for you is do I have to buy a different bracket for the new MPFI system?? I've read on some blogs that you need to buy a new bracket, is this true or not?? Thanks
Did you clean inside the valley before installing the spider injector? All I saw you do was spray the area with silicone. Great video too, thanks for sharing .
I have P0300 and P0308 codes on my 2000 5.7 Tahoe. I replaced plugs, cap and rotor. Fuel pressure test dropped 10 psi in 10 minutes so I figured it must be either the fuel pressure regulator or a leaky injector. However, after watching this video, I want to make sure that's my problem before I go to all this trouble and expense. Compression was good, but I suppose that I should do a leak down test? I don't have the tool. Would just run with the new spider injector if the fuel pressure dropped like that or would you do the leak down test as well?
Thank you so much I have a 96 k1500 and I have been chasing a ghost trying to find out why he's misfiring I bought him new spark plugs, plug wires, O2 sensors, distributor cap and rotor and ignition coil and nothing really solved the problem he's throwing the p0300 code which is random multiple misfire after doing more research and watching your video I'm confident I can fix my ride up he got 257,500 miles and is a great truck ive had it for 11 years id hate to park him for good thank you thank you!
Hello, what was the truck doing before you end up doing all this? you had gas pressure and spark, and it wouldn't start? how did you diagnosed or found the problem? thanks.
Let see if I have this right. The outer lines on the module got to outer injector ports and the inner lines go to the inner injector ports? Which lines are are on the top? Also, mine has been running rich a long time. How should I clean the top of the lower intake manifold? There is a lot of black greasy build up. Thanks for the great vid.
Nice job explaining - while you're working on the removal/replacement... Not sure if I would have attempted this project w/o your help ... Now, I can watch & pause as I go -- Thanks to YOUR video !!
Update to my earlier post , it is an 98 Chevy pickup 2500 with 5.7 engine ,it looks like water got into the fuel system , I have added Lucas Fuel Treatment hoping it solve the problem , How long does it to remove the plenum then replace the fuel spider how many hours ? Thank you for your help . I have a 2000 Chevy pickup truck with a Vortec Spider Fuel Injector Assembly for Chevrolet5.7L , it's been sitting for awhile , every once in a while I will start the vehicle up until it warms up , this time there was a rough idle with a lot of black smoke as if it's coming out of one cylinder , as it warmed up there was a reduction in the amount of black smoke , the idle became better , I used to do a lot of European cars and I have very little experience with the Chevy system , from what I was told it might be a fuel nozzle injector hanging up . check engine light did not come on , what's the next step in diagnosing this thing ? thanks
Hey Brian, Thanks for video-Trying to pull lower bottom deck throttle body off to clean it up -seems like distribulator shaft is holding it on- can I unbolt it? One other question- bent stainless steal pipe supply lines-can I bend back into shape or should I replace with new? 1997 Silverado 5.0 liter pick up truck
Great video. I am changing fuel pressure regulator. How do you get the injector plug to pop back up into the manifold. Been pulling on it but no luck. Comes up part way then seems to stick. I cleaned and lubed the surfaces before assembly. Don't wan t to just screw the manifold top down and hope it pops in.
Great video! I recently did the same exact replacement, however, When I got everything back together the truck (5.7) was hard to start and I could not keep it running except to baby the accelerator. Any suggestions? Do I need to do anything with the computer when switching to MPI?
Brian - great video. I have a 1999 Suburban. It starts up and then will not stay running unless my foot is on the gas. Engine sounds very rough. I replaced the distributor, plug wires, and plugs. No change. I think it may be the fuel pressure reg. and or regulator. Can you offer any advice? Maybe crank position sensor but I think that would be a no start condition... mine starts fine... just wont stay running without giving it gas.
hey brian, what kind & size o-rings or gaskets do I ask for when you talk about replacing the two at 34:19 to 34:23 ? those didn't come in my kit and I want to have them before starting project cause I won't be able to get to parts store when it's torn down.... also what is torque spec when reseating? thanks very much if you can help with this.
I use a pair of dental picks and just be gentle. Remember that if you do break them off there are ways to get them out again. There's metal in the tips so magnets work. And if all else fails, putting a new lower intake gasket in is actually a really good thing to do while you're in there.
I have the same truck. Only starts when I prime the throttle body. Starts runs alright to drive around. Soon as I shut it off it wont even start with a prime.
Great Video ! Coulldn't have done it without your video, probely would not have even tried! Finish New Spider Injection install Last night ! Truck runs like new now ! I didn't even have to remove ac compressor like you did! It was a pain in the ass job but I am sure I saved at least a grand in labor charges ! Thanks Again !
Great video, very clear and good instruction. Please do more like this. I have the same truck and had to do this procedure. This made my day. Thanks man
I just did this on my 97 Tahoe. Couple things: you can buy the delphi unit on amazon for much less than various retailers and MUCH cheaper than dealer and comes with the new hold down clip though its not mentioned. The injectors going out are also associated with having a constant or consistent miss fire code, mine was Cyl 7. I'm not sure if you discussed any miss fire codes, I did my best to watch the whole 36 minutes but I do not recall hearing it mentioned.
Thanks for posting this video Brian! Your calm way of talking while doing the job really helped me when I tackled this job yesterday. I watched your video about 4 times then decided I was able to do this. It's been a little cool this week so I used one of the others comment suggestions and used my heat gun "very" carefully to warm up the plastic tubing and everything worked out great. The most nerve racking parts was snapping the unit into the bracket but with patience it went right in. I don't have a garage so I had to do this outside. My truck started right up and runs like a new one. Dennis
Brian, nice work. quick question. I have this style that you are putting in and I'm pretty sure I have one that is bad, anyhow there are no "wings" to depress while removing and it doesnt look like there was any clip to snap or " clack" in do they just pull out? Thanks for your help!
Got a cylinder 6 misfire. Not intake new plugs wires. Only kicks check engine light over 60mph. And will turn off after about 8 restarts. . Doesn't run rough or seem like its misfiring. Could it be the spider 🕷? Great video thank you.
Hey Brian. Thanks for the detailed video, I knew it would be a bit of a process but now I know exactly what to expect. I am trouble shooting a 5.7 I just bought and found once I add fuel and let it sit for a few days that my gas is dramatically less.ordered a fuel pump,filter,plugs and head gasket set because of constant white smoke. upon checking my oil I noticed it is thin and smells of gas. So I am assuming it is the spider leaking either at the pressure regulator or one of the spider legs. have you ever run into or heard of this happening to anyone else? could I clean the regulator or do I have to fully replace the unit? Thank for any help my way. 2000 Denali 5.7 no check engine
Do the new style spiders improve gas mileage and horsepower over the old style? Even a 1mpg (10% for me getting 10mpg in my 2000 k2500) would pay for itself in a short time.
Did you have a hard time seating the injector assembly back into the upper intake manifold? I can't get it so seat right in and it's causing a big vac leak, any leads?
Hey bud, how do I check the injector signal at the harness connector for a 99 5.7 tahoe? I have a no start but do not want to replace spider until I'm sure that's what wrong. I'm not sure how to check that the injector is receiving a signal.
Great instructional video! I hope I never have to do this, but at least I know there is a step by step video to help me out. Remebering how to put things back in the right place is my problem, I take lots of pics or video the procedure to assist me later. Thanks for the demo and keep up the great work!
Question, I am going to replace the intake gaskets (coolant leak). Would you recommend doing this while the intakes off? 116,000 mile Tahoe 5.7. Thinking maybe killing 2 birds with one stone. Seems to run good cept for a little rough idle when cold. Thanks
Hey brian have a problem seems like the plugs get flooded cant start the pick up. do you think the truck has been sitting to long ? would it be possible that the injectors get stuck? been sitting couple of years
Brian Great video. I had a code of “PO300” misfire for cylinder #1. Swapped 1 & 3 wires (no change), swapped 1 & 3 plugs (no change). So then I replaced the existing SFI with the new MFI system. Watching everything to make sure I installed it right. I did not performa fuel pressure system check to make sure the injectors were seated right and not leaking. Finished putting everything back together and now I have the same code “PO300” but it’s stating I have multiple misfires. Any ideas before I tear it down to check everything? Thanks
Yes- sea foam and lucas. Just only use about 1/4 of what they recommend. Excessive use just coats your upper cylinder with white concrete-like substance.
I have 1998 Silverado and I have to change the spider fuel injector twice with a used spider, still doing the same thing just run for 30-40 second and cutoff am trying to buy a new spider now, Do you think that will be the best to do?
Installed spyder fuel injection as shown on video. Your video was very informative. I have a problem though. Truck is not starting, tries to start but acts like it is flooded. Took plugs out and are VERY gassy. I can shake the gas off the plug. Any suggestions???
After watching your video carefully, I replaced my fuel injection in 5 hours, and it worked perfectly. I think I am ready for another 200K on my Suburban. Thank you for a great example.
Did this a week ago and man is she running smooth. Thanks for your awesome instructions which made this possible!!! I took it all apart in about an hour on a Friday night and it took me about 3 hours to get it back together. I took pics of all the bolts so as not to misplace any. She get's better fuel economy too.
Sometimes seeing someone else do it can give you the confidence to do it yourself. I’ve been putting this repair off about a year and my suburban has been sitting the entire time. I now have a renewed interest. Thank you!
For the record I watched all the way through twice. And I really appreciate it being done in real time.
I know this vid is over two years old, but you are the man, can't thank you enough as me and my son tackled this today on his 99 K1500, step by step.....THANK YOU!!!
Thank you so much. This was a truly great video. I am the original owner of my 99 Suburban. It now has 170K miles and it really never ran right (misfires, check engine light always on… you know the drill). It had the older style injectors replaced about 100K miles ago. It also had the lower intake gaskets replaced twice (water leaks). Repairs like this kept the truck running halfway decent and generally not leaking. But it still never ran right. I just did this MFI fuel injector conversion. I also opted not to move the AC compressor. I did it in a single afternoon. Really not too difficult, but only because I watched your video and knew exactly what to do. Without the video, I would not have even tried it. The truck runs so much better now. Just passed NJ inspection, no problem. Definitely saved this truck from an early grave.
You're the first person I've ever heard or kind of met that even knew who Temple it is. I have a daughter with autism and I have read her book and it was incredibly enlightening. You should try doing this when you're 5 foot 10 it's flipping miserable! Of course my truck sets up higher in my driveway is about 2 degrees short of being an Olympic ski jump. No joke if you drop a socket in my driveway start walking to the street cuz that's where you're going to find it. I enjoyed the video
Hey thanks Brian! Did this in a '99 Denali I got for free cuz it was misfiring badly. I diagnosed it to a couple of bad injectors and watched your video because I haven't done one of these before. All good now and runs like a champ!
thanks brain for your time I replaced the spider a few months ago and i think the upper gasket is leaking so im going to do it again could you tell me the symptons of a leaking upper gasket leak also when i was done the top of the spider was not all the way thru the intake plug went in but it was like the spider assy was lower then when i took it apart also you did not talk about the torque sequence on the reinstall and the proper way to re-tighten the upper intake if i jump on it truck starts acting like its not getting enough fuel starts to like miss drive it easy no problems expect bad gas mileage idles fines and starts right up
Thank You so much for an outstanding demo. I am a mechanic from days gone by (70 to 90) and now own a 1998 chevy truck with injector problems. every thing was very helpfull---Very well detailed and to the point. Started my project and finished in just under 2 hours.THANKS AGAIN
You did not do it in less then 2 hours. I call bs
2hrs not
@@ronvonbargen8411
The video was only half an hour [so perhaps 1 hour for the entire job]. With the right tools handy, it could easily be done in two hours.
Hey Brian, Not sure it matters any more but the SCPI stands for Sequential Centeral Port Injection. Crappy Diesel type poppet injectors that were opened by a valve inside the middle of the spider unit. For those who do not know this style injector will not operate if the fuel pressure gets below 50 PSI. The new unit is true Multi Port Injection where the injector pintle is opened via a solenoid at the end of each injector. This is why there is a couple of wires heading down the fuel lines for each injector. This was the best fix I ever did on my 98 Silverado.
There are situations under the spider cover that can damage multi port wires, valve leakage and fire pops, plastic fire and heat sufficient to melt wire insulation. Multi port tubes are bigger diam, I had one break near the intake manifold, so engine totally fills with fuel. I recommend the SCPI with pintel torpedoes up in the spider body, a line break is less likely and does not fill engine with fuel. Mike Reynolds, below, many new parts and no luck - sometimes the bearings on the distributor, and the gear, are so worn that consistent spark is impossible. I grind a spare cap to expose the brass and check the spark life at each line to plugs, when you short the STRONG spark the engine slows. When you short a dead cylinder the engine does not slow. Dead cylinder can be due to crud after distributor goes bad, or due to dead pintel in spider. The cap grind trick is rather definitive, you can see faulty spark power, 1/3 size sparks with an occasional full size spark means the distributor bearings wobble and the trigger is confused, timing is off.
I am handy with an engine, but was worried about getting everything out of the way and/or doing them in the right order. Followed you sequence and was a quick disassemble and reassemble. Can't thank you enough for taking the time to make and post this video.
I brilliantly decided to do this on the coldest day we have had this year so took a bit longer as I stuck a heater under the hood to warm everything up for a bit to try and avoid the tabs on the old injectors snapping off and falling into the engine. It worked though. Gave me time to get a couple cups of coffee and warm myself back up.
Just replaced this and the fuel pressure regulator on a friends 1996 K1500 5.7L Tahoe. Watched the video. Total job took 3 hrs 30 mins start to finish. Thanks for posting this video
Thanks Brian! Did this upgrade this weekend and it was much easier after watching this. Fuel pressure regulator was leaking and was hard to start hot, so did the whole upgrade instead of just the FPR. Took about 2 hours of actual work - and 2 more to clean the carbon mess that resided under that cover. The tip of putting the injectors in first, then pushing the spider down until it locked was spot on a well. My Vortec runs so much smoother now. Thanks again!
You're welcome- way to go Frank!
Just finished replacing my spyder injector, thanks to your video no more codes just drove it 125 miles runs great. Thanks again,
Enjoyed the video and learned a lot. I even enjoyed all the commentary. I had never seen the inner workings of the spider injector system. Thanks for taking the time to make detailed videos.
Jim Dandy I prefer Fords individual port fuel injectors on the 5.4
Thank you for the video. I followed your instructions yesterday to do my friends 79 suburban 5.7 liter. Thanks so much- couldn't have done it without the video. The spider cost 300 bucks at Auto Zone and they had it in stock. I saw the same part at other places for 450 bucks. On his 79 I left the ac compressor, but did have to remove the thermostat housing to allow the manifold to lift up and off the heads, as part of it was directly underneath.
Thanks I didn’t think gotta remove the compressor this the comment I lookin for
man i love your style of demonstration straight to the point and articulate in a average joe , so everyone understands type way... keep up the good work you've helped mw on several projects...
I have thirty years plus mechanical experience. I'' ll say you talk a lot, but it is both with humor or educational, lol.
Keep it up, I'm scribing. Well Done.
Success! I got mine in! I heated the tubing midly with a heat gun.. got it just right.
No stress on the tubing, no collapse. Of course my engine is out on a stand so that made a big diff. Thanks again. On to detail and re-assembly!
Thanks Brian! I've been watching your videos over the past few years and I always watch your videos before I repair something I'm not familiar with. I'm getting ready to change out my spider. Good teacher and easy on the ears. Thanks for sharing! Tony
When ever I look at any of your videos, I give them all a thumbs up before the video begins. Keep up the good work, Brian
Brian,Thanks for the video.After installing the spider,I went to start the truck and a made a knocking sound and the engine seemed to just freeze up.It won't start at all.Do you have any idea what could be wrong?
Brian, what is the tongue spec for the plenum? Thanks - I keep finding a few answers...
The crowsfoot flarenut wrench that you use to disconnect the fuel lines in the back is the way to go. The firewall makes it tight to fit a normal 16mm wrench in there. The crowsfoot wrench made it easy. I just replaced a leaking fuel pressure regulator in mine. A lot of work just to replace that one little part but necessary. Thanks for the video.
got mine done in 5 hours. Thanks so much for great video. My problems are now fixed.
+Lew Coggins You're welcome Lew!
briansmobile1
briansmobile1
Well, Just picked a MPFi at AZ. I did not want to have to replace the original but.. The fuel in O-ring was split and I did not want to have any fires or pay 9.00 for one from the dealer. Installing a new crate 350 for a 305, so might as well do it right. Thanks for the informative videos! Enjoy the the general talk that goes along with your videos. You must be a Sagitarian..
Thanks Brian, kept my iPad handy for a step by step and pulled it apart
in no time. Took a little longer to put it back together. I actually had
about 1/2 inch of standing gas in the main connector of "the creature
of darkness." I had no codes, but the symptoms all seemed right. Runs
like a dream now. Thanks again.
Welcome buddy!
Thanks for this video! I have been having engine misfires and running rich. With the help of this video I successfully swapped out the spider injector and voila! The truck has never run better! Thanks again!
I had the strangest thing happen after changing the spider , I still have not been able to figure it out. After replacing the spider I took it for a test drive and within 50 feet of driving it I pushed the AC button and smoke started coming out of the AC controller it fired the controller. I have traced all the wiring inside and have not found any bad wires. The AC has been replaced all the Air blend motors have been changed. Not sure if there is one for the hot to cold. The AC work great before changing the spider so I thought I might has pinched a wire or forgot a ground but everything looks fine, I replaced the AC unit the high pressure cutout switch and the dryer, put a new controller in and it smokes it when turning off the fan switch. Not sure if anyone has ran into this problem but I thought I would put it out there I watched your video to go back through all the parts and wiring being removed to see if anything would click just in case I missed something thanks for the great video.
I just used your vidso to do this in my 97 c1500 305 v8. This was a huge help and took the guesswork out of what had to be removed and what didn't. Thanks a lot man!!!!! Keep wrenching and keep making vids we appreciate it!!!!
would bad spider injectors cause over fueling into the exhaust and cause your catalytic converters to get red hot
I'm going to replace my FI system in my 99 k1500 4x4 5.7L. in a couple days. This was great info and video of this.
how do you safely remove the new style injectors? I have removed many of the old style but I have never had to remove the new style. I don't want to remove the lower intake only the upper and I am a bit concerned if I just pry them out they may break off.
Brian,
Do you believe in using any type of fuel injector cleaner ? Laquer Thinner ? Seafoam ? Lucas ? Or ??
Thanks Brandon,
Great help thank you. Im curious what your take on injector cleaners.additives ect. Do they work or should I just get down to it and replace spyder (injectors spyder was diagnosed bad) thanks again
Just wanted to add another thanks Brian... great video. I swapped out the CSFI on my 99 K1500... big job for me, but got it done. Super hard to get the injector body down in the bracket....another set of hands would have made it much easier! Anyway...just wanted to say THANKS! People helping people...love the attitude you have!
Thank you again Brian for another very helpful video....but what about torque specs on these bolts? I kno you gotta tighten up these from the inside and work you way outside in a chris x pattern but does torque really matter on these bolts?....can you tighten these up too much and strip them?...am about to replace the spider in my 00 savana...dont own a torque wrench this is why am asking. ..Thank you Brian.
Thank you for your super informative video! You explained every step in detail which makes it so easy to follow along. Gave me the confidence I needed to tackle this job myself!
Great video on procedure of swapping it out!
Any info on diagnosing a bad "Spider Injector"? You mentioned in the video the truck had P172/P175 as lean (I believe you misspoke since those are rich codes and the pcm would remove fuel with a negative fuel trim). Was it misfiring?
I am wrenching on a 1999 5.7l, P0172/P0175. Really no symptoms except a CEL. Fuel pressure is 62-66 but did bleed off over 1 hour to 20psi (but have to consider the fuel pressure gauge leaking). Engine runs fine/smooth w/o misfires. Fuel trim is buried negative at idle and slightly better cruising, BUT has compensated to 14.7:1 with the o2 sensors switching rich to lean. Coolant temp/IAT match cold, MAF is around 2400htz at idle.
I did pull the upper plenum for a look, no clean spots under the lines or under the fuel pressure regulator in dripping fuel. I think the fuel pressure regulator is releasing fuel into the plenum through the vacuum port, but there is no evidence of this such as a clean area under it. I really dont want to make a bad call on a $50 fuel pressure regulator or a $300 spider injector based on the evidence I have.
Suggestions?
I have 1998 5.7 vortec and it has developed a miss or skip that I can't find, i have changed everything electrical, but now thinking spider may be the culprit, but i don't think I'm a good enough wrench to tackle this project.....dude I wish you were in North florida, cause you are the man on this fix and would love if you did mine. thanks for posting video.
Thanks a million, needed to change my lower intake manifold gasket and while i had it off might as well change the injectors, 220,000 miles, wont be long before they would give me problems anyway, looks like i ordered the same that you have in the video. lots of carbon build up on the front 4 so it its preventive maintance time.
Thanks Brian! Great video! Van runs great now! Number 5 cylinder was running lean. Figured it had a bad injector. Tried fuel additives of course none if them worked. Not wanting to burn a valve I just knew I needed to replace that injector. I was worried it was a little over my head. After watching your video and going back to it when needed it was a breeze! I appreciate it so much that you posted this video! Thanks again!
Nice video, I'm working on a 96 4.3 Vortect atm and there is a possibility I might have to change the spider injectors. I had 2 questions if you don't mind 1 what was the symptom of that vehicle and what was the mileage of that car? if you still remember. Thank You
Brian Thanks for the video. I actually watched it 3 times then changed the spiders on my K1500 Chevy truck. Without your help I wouldn't of been able to dot it. It was tough though I would not want to do it again. I salute you good sir.
Very good, thank you. I have to do my 99 Suburban real soon, 240k on it & the spider assy is the only thing I haven't replaced. Now I will feel a little better about doing this job.
Hello Brian, I just got my car diagnosed and the mechanic said that it is the fuel injection spider. Can you please tell me what the symptoms for this to be the problem? I have a 99 chevy suburban and what my car does is some days in the morning when is cold it just don’t start, but the next day I try it again and it starts right away is like this car is possess. In addition the car doesn’t have the check engine light on. Please help, I’m a full time students and I can’t afford to fix this right now.
thank you for your excellent videos. I think you be a great sales men.
Thanks for the video. I have a 1999 5.0 express van and could not find a video of this conversion for my van. I feared this job would be more difficult on a van as everything is. It turned out to be a very easy job. Having access through the cab hatch eliminated having to remove the compressor and belt.
Thank you sir for this very informative video. I may be facing this task in the near future. Also I absolutely agree with you on freedom. I just wish more people cared about the freedom we're trying to keep.
So true on the Freedom... MAGA !! ;-)
Fantastic, since youtube bans music playing while you shoot your vids , I find the commentary quite enlightening. “The only place success comes before work is in the dictionary.” Merci Steve.
Would bad spider injector trigger p0300 , I had problem today with my 1999 gmc suburban it's hasitating on idel and lost power on driving the car barley go forward , I checked with my scanner it's say p0300 only nothing eles .
After install have u ever had the upper intake blow apart
No.
Thank You Brian for the video. It helped me get a true perspective on the job at hand and it was there to always go back to during the weekend job. It was rewarding to complete the job with your guidance and the result was awesome after the test drive yesterday. Thank You again for taking the time to make this video.
Thanks for your infoe, Later on today..Wednesday...I am going to do my own work on my 1996 Chevy 3/4 ton. This is the first time I have ever seen what you call a spider injection. At first Dave and I could not find the Injectors, so he told me to do some research. Looking at your video, I am sure it will help me a lot. Thank you.
Not sure on the year of your vehicle, but first thing to mind is the kick down cable/adjustment at the throttle.
Have you ever had one that will not clip in??? If so do they make just replacement plastic ends?? I just put one on mine and all clipped in except 6,8.. Have no idea why.. Nothing is broke but will not clip into place? Thanks!
Supercharged RT Most of mine havent clicked, did you have any problems?
Thank for the video, will be referring back to it in a week when I take on this project. Keep the Chevy Vortex videos coming as I depend on mine daily
This is the de facto video on how to do a spider. With some salient folk philosophy thrown in. Thanks a ton for this video. I have since done three of these rascals. This is one of those jobs that looks daunting at first, but is easy if you do what brian says. These things are very brittle. Like he says, warm it up if it's below 70 degrees. Use the included tool to twist the legs into place. If you don't, your chances of breaking one of the legs goes up 10x.
I will add one observation, of course. Do NOT insert the white nozzles until you are 100% sure everything is situated correctly. If you need to take one out, forget it. Impossible. I had to make a tool out of a paint can opener to extract stuck nozzles and on a van, that's about an hour apiece in less than comfortable conditions. They give you a couple extra nozzles in a baggy. For the life of me, I can't figure out why.
Thanks again, Brian,. Great video.
Hey Brian thanks for the video, my question for you is do I have to buy a different bracket for the new MPFI system?? I've read on some blogs that you need to buy a new bracket, is this true or not?? Thanks
Did you clean inside the valley before installing the spider injector? All I saw you do was spray the area with silicone. Great video too, thanks for sharing .
Great video, good job, when pulling apart so many harnesses, I like to mark them with green painters tape, makes them stick out like a sore thumb.
Brian what technical college did you attend? You do a great job at explaining everything too.
I have P0300 and P0308 codes on my 2000 5.7 Tahoe. I replaced plugs, cap and rotor. Fuel pressure test dropped 10 psi in 10 minutes so I figured it must be either the fuel pressure regulator or a leaky injector. However, after watching this video, I want to make sure that's my problem before I go to all this trouble and expense. Compression was good, but I suppose that I should do a leak down test? I don't have the tool. Would just run with the new spider injector if the fuel pressure dropped like that or would you do the leak down test as well?
Thank you so much I have a 96 k1500 and I have been chasing a ghost trying to find out why he's misfiring I bought him new spark plugs, plug wires, O2 sensors, distributor cap and rotor and ignition coil and nothing really solved the problem he's throwing the p0300 code which is random multiple misfire after doing more research and watching your video I'm confident I can fix my ride up he got 257,500 miles and is a great truck ive had it for 11 years id hate to park him for good thank you thank you!
Hello, what was the truck doing before you end up doing all this? you had gas pressure and spark, and it wouldn't start? how did you diagnosed or found the problem? thanks.
Let see if I have this right. The outer lines on the module got to outer injector ports and the inner lines go to the inner injector ports? Which lines are are on the top? Also, mine has been running rich a long time. How should I clean the top of the lower intake manifold? There is a lot of black greasy build up. Thanks for the great vid.
What would you recommend? Acdelco or Delphi? I need mine to be replaced.
Brian is there some sort of test to find out if the injectors are bad?
Nice job explaining - while you're working on the removal/replacement... Not sure if I would have attempted this project w/o your help ... Now, I can watch & pause as I go -- Thanks to YOUR video !!
Update to my earlier post , it is an 98 Chevy pickup 2500 with 5.7 engine ,it looks like water got into the fuel system ,
I have added Lucas Fuel Treatment hoping it solve the problem ,
How long does it to remove the plenum then replace the fuel spider how many hours ?
Thank you for your help .
I have a 2000 Chevy pickup truck with a Vortec Spider Fuel Injector Assembly for Chevrolet5.7L , it's been sitting for awhile , every once in a while I will start the vehicle up until it warms up , this time there was a rough idle with a lot of black smoke as if it's coming out of one cylinder , as it warmed up there was a reduction in the amount of black smoke , the idle became better , I used to do a lot of European cars and I have very little experience with the Chevy system , from what I was told it might be a fuel nozzle injector hanging up .
check engine light did not come on , what's the next step in diagnosing this thing ?
thanks
Hey Brian, Thanks for video-Trying to pull lower bottom deck throttle body off to clean it up -seems like distribulator shaft is holding it on- can I unbolt it?
One other question- bent stainless steal pipe supply lines-can I bend back into shape or should I replace with new? 1997 Silverado 5.0 liter pick up truck
Can't stress enough how much i liked this video!
Thanks Allen. And thanks for subscribing! Most people just watch and run. Seriously- like 95% of my views.
Great video. I am changing fuel pressure regulator. How do you get the injector plug to pop back up into the manifold. Been pulling on it but no luck. Comes up part way then seems to stick. I cleaned and lubed the surfaces before assembly. Don't wan t to just screw the manifold top down and hope it pops in.
Hey Brian about how long does it take to change the whole assembly?
Great video! I recently did the same exact replacement, however, When I got everything back together the truck (5.7) was hard to start and I could not keep it running except to baby the accelerator. Any suggestions? Do I need to do anything with the computer when switching to MPI?
Brian - great video. I have a 1999 Suburban. It starts up and then will not stay running unless my foot is on the gas. Engine sounds very rough. I replaced the distributor, plug wires, and plugs. No change. I think it may be the fuel pressure reg. and or regulator.
Can you offer any advice? Maybe crank position sensor but I think that would be a no start condition... mine starts fine... just wont stay running without giving it gas.
hey brian, what kind & size o-rings or gaskets do I ask for when you talk about replacing the two at 34:19 to 34:23 ? those didn't come in my kit and I want to have them before starting project cause I won't be able to get to parts store when it's torn down.... also what is torque spec when reseating? thanks very much if you can help with this.
I use a pair of dental picks and just be gentle. Remember that if you do break them off there are ways to get them out again. There's metal in the tips so magnets work. And if all else fails, putting a new lower intake gasket in is actually a really good thing to do while you're in there.
I have the same truck. Only starts when I prime the throttle body. Starts runs alright to drive around. Soon as I shut it off it wont even start with a prime.
Great Video ! Coulldn't have done it without your video, probely would not have even tried! Finish New Spider Injection install Last night ! Truck runs like new now ! I didn't even have to remove ac compressor like you did! It was a pain in the ass job but I am sure I saved at least a grand in labor charges ! Thanks Again !
Great video, very clear and good instruction. Please do more like this. I have the same truck and had to do this procedure. This made my day. Thanks man
ok here is my question Brian do you need to change the gaskets on the plastic plenum when your changing the fuel pressure regulator?
You are an excellent teacher, thanks for the instructions!
I'm going to change my fuel injector spider on my '99 Suburban this Saturday. I'll let you know how it went. Thanks for the great video.
I just did this on my 97 Tahoe. Couple things: you can buy the delphi unit on amazon for much less than various retailers and MUCH cheaper than dealer and comes with the new hold down clip though its not mentioned. The injectors going out are also associated with having a constant or consistent miss fire code, mine was Cyl 7. I'm not sure if you discussed any miss fire codes, I did my best to watch the whole 36 minutes but I do not recall hearing it mentioned.
Thanks for posting this video Brian! Your calm way of talking while doing the job really helped me when I tackled this job yesterday. I watched your video about 4 times then decided I was able to do this. It's been a little cool this week so I used one of the others comment suggestions and used my heat gun "very" carefully to warm up the plastic tubing and everything worked out great. The most nerve racking parts was snapping the unit into the bracket but with patience it went right in. I don't have a garage so I had to do this outside. My truck started right up and runs like a new one. Dennis
Brian, nice work. quick question. I have this style that you are putting in and I'm pretty sure I have one that is bad, anyhow there are no "wings" to depress while removing and it doesnt look like there was any clip to snap or " clack" in do they just pull out? Thanks for your help!
The truck you were working on, was it starting at all before you replaced this part?
Got a cylinder 6 misfire. Not intake new plugs wires. Only kicks check engine light over 60mph. And will turn off after about 8 restarts. . Doesn't run rough or seem like its misfiring. Could it be the spider 🕷? Great video thank you.
Hey Brian. Thanks for the detailed video, I knew it would be a bit of a process but now I know exactly what to expect. I am trouble shooting a 5.7 I just bought and found once I add fuel and let it sit for a few days that my gas is dramatically less.ordered a fuel pump,filter,plugs and head gasket set because of constant white smoke. upon checking my oil I noticed it is thin and smells of gas. So I am assuming it is the spider leaking either at the pressure regulator or one of the spider legs. have you ever run into or heard of this happening to anyone else? could I clean the regulator or do I have to fully replace the unit?
Thank for any help my way.
2000 Denali 5.7 no check engine
Do the new style spiders improve gas mileage and horsepower over the old style? Even a 1mpg (10% for me getting 10mpg in my 2000 k2500) would pay for itself in a short time.
Did you have a hard time seating the injector assembly back into the upper intake manifold? I can't get it so seat right in and it's causing a big vac leak, any leads?
Hey bud, how do I check the injector signal at the harness connector for a 99 5.7 tahoe? I have a no start but do not want to replace spider until I'm sure that's what wrong. I'm not sure how to check that the injector is receiving a signal.
Great instructional video! I hope I never have to do this, but at least I know there is a step by step video to help me out. Remebering how to put things back in the right place is my problem, I take lots of pics or video the procedure to assist me later. Thanks for the demo and keep up the great work!
Question, I am going to replace the intake gaskets (coolant leak). Would you recommend doing this while the intakes off? 116,000 mile Tahoe 5.7. Thinking maybe killing 2 birds with one stone. Seems to run good cept for a little rough idle when cold. Thanks
Hey Brian I have to do this to my 98 K 1500 truck are those fuel injector 6.5 or 5.5 lines
Hey brian have a problem seems like the plugs get flooded cant start the pick up. do you think the truck has been sitting to long ? would it be possible that the injectors get stuck?
been sitting couple of years
Brian Great video. I had a code of “PO300” misfire for cylinder #1. Swapped 1 & 3 wires (no change), swapped 1 & 3 plugs (no change). So then I replaced the existing SFI with the new MFI system. Watching everything to make sure I installed it right. I did not performa fuel pressure system check to make sure the injectors were seated right and not leaking. Finished putting everything back together and now I have the same code “PO300” but it’s stating I have multiple misfires.
Any ideas before I tear it down to check everything?
Thanks
Yes- sea foam and lucas. Just only use about 1/4 of what they recommend. Excessive use just coats your upper cylinder with white concrete-like substance.
I have 1998 Silverado and I have to change the spider fuel injector twice with a used spider, still doing the same thing just run for 30-40 second and cutoff am trying to buy a new spider now, Do you think that will be the best to do?
Installed spyder fuel injection as shown on video. Your video was very informative. I have a problem though. Truck is not starting, tries to start but acts like it is flooded. Took plugs out and are VERY gassy. I can shake the gas off the plug. Any suggestions???
Just my opinion, but you may try a new AC Delco fuel pressure regulator.