Chevy TBI rebuild (GM Vehicles V6 V8 SBC BBC) 

What can I say? Everybody agrees that this is absolutely a top-notch how to video. Thanks 3rd Gen Guy!

The finest how to video I've seen. Not a lot of babble just plain and simple instructions. As good a any commercial production.

Great to see extra info on TBI Gasket (9:34) & Idle Air Control reset ( 11:30).. no one else has mentioned that! Invaluable...

Some notes for those of you about to tackle this rebuild; It's super easy, and 3rd Gen Guy goes into incredible detail with this, but having just done this yesterday I have some tips/advice to add with issues I ran into. Also thank you so much 3rd Gen Guy, without your video I would have had to have a mechanic do this. Thanks a ton. 1) LUBRICATE THE O-RINGS! I did not do this, and I blew out the O-rings! The injectors started dumping fuel out into the throttle body, and my car sounded like a truck! Struggled to start, stay on, it was super ugly. Had to let the car spend the night in an O Reilly parking lot and didn't find the issue until the next day. The Haynes manual says to use transmission fluid, but motor oil (what I used), vaseline, and dish soap all work good too. 2) Removal of the injectors. My injectors did not simply pull out, no matter what I used. I used vise grips ontop of where the screws go, holding down the injector pod cover, with some cardboard to protect the smooth gasket face, and using the head of the vice grips as a leverage point, used a screwdriver underneath the center "mushroom" between the two poles of the injector to pry it up out of its seating. Much easier than scarring the injector by clamping down too hard in my case. 3) If you dont have an electrolysis kit, some carb/choke cleaner will run you 6 bucks for 2 bottles and you can pick up a pack of little wire brushes (plastic, brass & steel) at an auto store. Combined with some Q-tips and maybe a little PB Blaster (make sure you wash everything out afterwards with carb cleaner if you use this) and you can polish that aluminum right up. 4) Make sure to take pictures of everything as you're disassembling it step by step Hope this helps anyone trying to head this on. Thanks again for the video.

Best TBI rebuild vid on the tube. Thanks dude!!

One of the top 10 youtube videos on car repair I've ever seen.

I'm a working Tech professional, great job on this video! Although I do this for a living and have done this procedure many times, I enjoyed the detail without the B.S..

Thank You 3rd Gen Guy. This video was very helpful. I rebuilt my TBI today. You made it look easy! I had trouble with one of the injectors leaking from the top, and google told me it was an o-ring problem. The orings that came with the rebuild kit were slightly too large and kept coming out as I tightened down the plate on the injectors. I solved this by putting the rubber oring in first followed by the steel oring. No leaks now. Also... after completing this, the injectors seemed super loud inside the cab of my truck, the rapid ticking sound was really loud, I thought I broke something. Consulted google again, turns out it was just one of the steel fuel lines was making contact with my cab, the noise is normal but not supposed to be transmitted into the cab. I pulled the steel fuel line away from the cab and buffered it with plastic corrugated covering stuff. No more noise! Finished. I didn't tune it yet, but I will do that maybe next week. Thank you for showing us how to do that as well, you're awesome.

This video was a HUGE help to me. I did the TB on my 92 RS yesterday, and because of the video the hardest part was getting some of the old gaskets off. As someone else said, definitely a good idea to lubricate the o rings!

ordered my kit and new injectors, after watching your video i have the confidence to do this, thank you

after watching your video, I am planning to rebuild my TBI unit. I have the TBI cleaned and spread out on my table, and have a rebuild kit . I want to watch this video a few more times, then get busy on the rebuild.

tt was a pleasure to watch this video as I did a rebuild on the tbi of my 87 s10 blazer last year. The one thing that I did differently was to fabricate a fitting that I could pump carb cleaner thru the injectors while using the 9v battery technique. I was concerned about clogged injectors so I wanted to insure that the spray pattern was excellent. I had to do other things at the same time, o2 sensor, throttle position senson and just recently the idle control valve. The enjine has great power for a 2.8 and is very responsive on acceleration. I wish I had seen your video when I was going to attempt the job. It was a good review for me.

Great step by step video. Mine was with an upgraded lower half and a new spring for greater fuel pressure. Only thing I would change would be pulling the injectors with pliers. This is a bad idea and actually much harder than levering them out. The key is to break the hold on the bottom ring. Pulling straight up is more difficult. Loved it.

This will be the first engine I rebuild starting with that TBI. So happy to have come across these videos of yours. Wish me luck. LOL

Perfect, Just what I needed. I will watch it a few more times before I tackle the rebuild. And plan to have a laptop handy during the work so I can watch parts of it again.

The Quality & Clarity on this video is unlike any out there... No Rambling, Stupidity, or Carrying On instead of Clearcut Instructions..! It was exactly what I needed to fix my TBI... Thank you so much Sir...🙏

As I sit here now, I'm gonna admit that I NEVER knew about the reset. Never!! Great vid, very informative, and straight to the point. Thx for sharing /posting. Gonna attack my Yukon when I get the rebuild kit next week. And I'm also a 3rd Gen lover/owner😁😏👍🏿👌🏿. 85 Z

Thanks! Great! Had serious problem with a 89 350 tbi that I installed in a 56 chevy pickup. Did not respond and very hard to start. Followed Your instruction, never worked with a fuel injected trottle body before. Got a fuel leak from the fuel pressure regulator, did it right, was a bit more careful with the spring, not a big deal. Magic, it runs so well, and so responsive and starts in a fraction of a second. / Bo Johansson, Sweden.

Well done very clear and concise i followed this on my 1994 Astro 4.3, and it runs much smoother now.

I'm going to subscribe, I just got a 3rd gen Firebird and your tutorials will help with rebuilding the car. Thank you for going in to detail on this tutorial and many others on your channel it will help me significantly.

The perfect DIY video. Everyone who posts videos such as these, should take lessons from you. My 93 Chevy 1500 is back on the road thanks to you .....Thank you very much.

Great detail, 3rd Gen Guy, with good narration! There are VERY FEW quality videos available on rebuilding these older throttle body units. Thanks for your help and for the helpful tips, also.

Exceptional work on this video. I appreciate the step by step simplicity of the instructions without all the extra dialogue.

Best TBI rebuild video I've seen. Well Done.

Great tutorial. I've rebuilt a TBI once before. This was a good refresher for me. One thing I did not learn until now is the idle re-program which you show here. If it is the same step for the truck v6 as with the engine you have in the Camero, shown here, then that would be the only thing left for me to do for my pick up truck. Thanks, again.

Excellent video. My 1989 Chevy Cheyenne one ton SB 350 TBI is getting rebuilt soon by me with the help of this video. Thanks for sharing this step by step rebuild. You took the guess work out of the job.

my dad told me these were simple to work on. i didnt realize just HOW simple they were. great video. i have a buick 350 i wanna adapt a tbi onto. might just do that sooner than later. =)

Excellent video. Straight . No fluff. Thank you

Thank you for this video. Finally was able to get to rebuilding the TBI on my 95 chevy c1500 v6. Everything went perfectly!

Just did this procedure and the video was a big help. Suggestion: while installing the fuel pressure regulator gasket, I cut 4 pieces of aluminum wire approx .100 thick and 6"long to make posts to keep the spring, cover and gasket straight as I collapsed it. Insert the wire post through spring cap and bottom assembly. The posts kept the housing centered and the gasket in correct position. Remove post one at a time and tighten screws. Great video, thanks for posting!

owner of a 92 chevy tbi, -great video!!!

Excellent explanation of directions, filming ! Thank you much sir!

Watch dozens of BRO throttle body rebuilds and this was definitely my favorite video So far. Great work. Please post more builds and repairs.. anything just gives us facts and less about what you had for dinner lol

Hands down the best rebuild video. I was going to make a video and post myself but after watching this one I've decided to make my money else wear. Great job!!

While you have it apart, take a little extra time to blend and polish the throats and add a spacer to the injector tower. The airflow can be improved by a fair amount, along with throttle response and fuel atomization by doing so. An adjustable fuel pressure regulator doesn't hurt either, makes them much more tuneable. Doesn't hurt to pop the cover off the idle screw for further tuning if you're getting a little aggressive with your timing. Nicely done Sir! This vid is a perfect example of no-nonsense, get it done, it's easier than it looks kind of wrenching.

One of the greatest videos so far!

Thank for this video really helped with my 94 tbi rebuild

Great video thanks for the heads up on the reset!

Since replacing the IAC it been idling high, the last part is good to know, of course it wasnt done..but I'll get it tomorrow...great info...'94 Chevrolet Cheyenne 4.3l

Watched it again...! Great Job...👍

I don't even have a TBI (got TPI), yet this is such a great and interesting video. Great job!

Woah . Had like 8 of this style trucks and just learned their are gasket for the air intake and that can wow Learn something new everyday

Nice! Thanks for taking your time.

This is gonna help a lot bc my step dad gave me a 1992 camaro rs like this before he died and it is in bad shape thx for helping me with the tbi

Very precise. Thanks, going to do my 89 c 1500 this weekend

Good stuff. Best video out there. Thanks for the help!

Excellent video. Best I've seen. Great job!

That looks fun. I can't wait to do that to my Camaro .

I have a 4.3 chevy tbi on my Franken Jeep with the amc 258 and this video was an asset to my rebuilding the tbi unit.Thanks!

Thank you very much! I like this video! Respects from Finland!

Great video and well informed on the step by step procedure, keep it up thumbs up.

very smart guy, lol.. just what i needed to know about my 95 chevy v6

Just right, I really enjoyed watching this video thanks its really well explained 👍👍👍👍👍

Perfect video just what I was looking for! Thank you

Simple and to the point. Perfect.

Great video! I’m going to link it in the description of mine, I’m doing some mods and your video showcases a rebuild far better than I did 😂

Great video, I’m going to be trying this on my k5 blazer soon. Hopefully it helps it run smoother.

Thank you for this video, again very helpful! I'm gonna do that next spring.

Great video, I'm rebuilding my TB on my 91 Firebird right now, 2 things I noticed, you forgot to reinstall the dust seal gasket on the fuel pressure regulator, and to avoid gas leaking out your gas lines, pull the fuse for the fuel pump and crank it over until no fuel is coming out of the injectors. Thanks for the help!! All your videos are very helpful!!

Wow. You make it look easy. Thank you. Hopefully I can rebuild my '95 Chevy truck.

Goes very helpful with the idle air control because I’ve been having problems with mine and I didn’t know it had to be adjusted that way, thank you for the video it was very helpful

Great, looks like I should do this to my Firebird!

Ok did the job today and their were a couple of problems but I got'er done and my truck runs super now. 454SS so there were a few thigs different. The Pressure regulator is a bitch to hold it together and screw it together, gasket gets all wonkey and produced a leak the fist time. Re did it and alls good Thanks for the video

Great video

Nicely done. Very thorough and complete.

Wow that was really good and very thorough👌

Great vid, now i tear into my 1990 wrangler 4 cyl's gm tbi and see what i can put back together with my rebuild kit fingers crossed

Got a 94 c1500 going to do it myself now excellent video

Very good video, excellent job. Thanks for sharing you experience

Greatly appreciate your video it gave me the confidence to rebuild mine instead of speeding undo money on a new one. Please post more if you can and thanks again. 3rd gen new old owner again.

Awesome video man!! Thanks

Your Fuel line is dripping because fuel tank has pressure in it from temperature change. Crack the gas cap to alleviate pressure. Excellent video, had no idea there way an idle air control valve learn procedure.

Gracias mtro, x su información,le doi un diez, saludos d ver, mex,

Very well explained and easy to understand Thanks

Best TBI video ever, thanks 😊

Thanks . It is going to be very helpfull to rebuild my 2.8 s10 Blazer :D

Best video I could fined ,learned a lot ,very good

Holy shit dude. Looks great! Nice work!! one of the best third gen videos i've seen! Also, NOONE DOES TBI VIDEOS! So thank you so much!! Everyone is into their TPI's, TBI is where its at! (not really, but TBI's are cool too!) THAKNS AGAIN !!

Great video, thanks man!

Very good presentation...thumbs up!

great video for a basic rebuild when your putting it back together use some atf on all the o-rings also o-rings on the fuel lines there are a bunch of mods that you can do like order a big block kit use the spacer under the injector to raise it up (more air flow )also the regulator is also adjustable when its apart the disc inside move it up for more and down for less make the notch larger in the cover remove the tab that holds it static cut small notch,s around the disc so a small tool can be used to adjust up or down this things like about 15 psi butt will run on about 9 psi if your a mileage guy keep it down to about 10 or 12 an HP guy crank it up to 15 or more they also love boost I had a 383 alum head with a pro-charger and past Calif emissions

Very good video, Wish I saw this before I rebuilt my TBI 1990 chevy 3500 series truck. Now I will go back and do it right.....

Great job buddy 😀

Great posting those were some excellent camera angles I don't know where you live but I'd love for you to rebuild mine I have a 94 Silverado 5.7

Thank you. I have a 93 c1500 giving me problems. Think a entire TBI rebuild is what it needs.

Very well presented. Thank you. Check throttle shaft for slop. Too much up and down play and you have a vacuum leak.

Very good video. Straight forward.

Excellent video!!! Thanks.

Awesome video. Thank you.

Thank's a lot! Easy and clear what to do!

Awesome job buddy and to the point

Excelente video...!!

Very good video by the way. Thank you.

That looks pretty simple to do thanks for some good advice

Make sure you clean the PCV passage, mine was totally plugged on the one I did recently! Good job on the video!

Hey bud your awesome. Thanks for a very detailed video. And thanks for not bragging for 30 min about what you have and not playing stupid unnecessary music. Your video was perfect. Do you by chance have or know the price and the rebuild kit #?? Any help would be greatly appreciated. Thanks again

Awesome video thank you so much!

Great vid, thanks for your time and effort to make it.

Amazing Work!!!

Hey great video. I've used it to rebuild my tbi. I have a 91 buick roadmaster with the 305 tbi. I replaced the iac and now my car is running super rough and rich at idle. Will doing the reset as per your video will work?