tbi

  1. 19971997

    1997 C2500 Engine swap w/ TBI Long Block

    Im writing this in a hurry since im on my lunch break but this is what i got going on: Picked up a nicer than normal northern states truck (Indiana) with a trans issue. It would only drive in revrse. I got the tranny rebuilt and the truck drove fine back from the shop. 2 weeks later it had all...
  2. TheAutomaTom

    '91 305 TBI stalled out, got towed, never started again

    1991 Chevy C1500 Scottsdale, 305 5.0L TBI, standard tranny, 309k miles, super fun to drive. Backyard find. Major issue was distributor, but replaced a bunch of parts because everything looked crummy and I wanted to be confident it could go. A few months of driving her around with no issues, it...
  3. B

    90 k1500 5 speed after 1/4 throttle falls on face and goes no where

    90 k1500 5speed I am sure somewhere some has posted or asked about this if so please tag a link for it. Idling okay. But driving down road will go okay for a sec till you get to 1/4 throttle and then if like there is 10klbs behind it and just has no power at all and kinda revs up a lil bit and...
  4. OhmanSWE

    Help getting a oil pressure gauge installed

    Hello! I have a Cadillac deville 1966 where the previus owner engine swap to a 5.7L vortec 1997. I would like to install a oil pressure gauge, where can i install it and how? I have read it could be behind the oil filter where i should be able to screw in a nipple and get the tube from the gauge...
  5. hilly101111111

    Rough Idle, hesitation and bucks

    I have a 1990 GMC k2500 5.7/turbo 400 trans. It always had a rough idle and when I drive 50mph - 65mph it kinda bucks and skips and it'll be flat when it happens and I have my foot on the pedal like 1/4 of the way. The truck had a ton of new parts on it including a fuel tank sending unit pump...
  6. Chrimson85

    Throttle body issue, Stuck High Idle after gas pedal pressed.

    My Truck is 1989 K2500, engine is a 5.7 350 TBI with 4spd Manual. The problem started after the truck sat for a while. The issue is that when the gas pedal is pressed the truck's idle climbs and doesn't come back down. I have to turn the ignition off to stop it from self destructing. I've...
  7. 1

    454 SS dies randomly, no codes

    I’ve got a 1990 454 SS Pickup with 114000 miles. This is the most unreliable vehicle I have ever owned. The main reason I am making this post is because the truck always dies for no apparent reason, and then proceeds to no-start for a duration of at least 20 minutes (give or take). The ECM never...
  8. Nick88

    Gas Mileage

    With these trucks, gas mileage is not a strong suit, although, fuel economy can be increased for relatively cheap and especially with the price of gas, will save you a lot of money. I did some mods to my truck which helped my 350 TBI in a 1988 square body Blazer get in the 20s cruising on the...
  9. Idaho83815

    '93 K3500, 454 TBI, poor drivability

    Hello, newby and looking for advice. Thanks in advance. 1993 GMC K3500, 7.4, TBI, 156k miles, 4L80E Auto Trans (Jasper Reman tranny installed 2 years ago) I have owned it 6 years and it goes to the dump and plows snow in and out of our property in the winter. Always had a high idle (1000-1200)...
  10. DKT5

    Noise Identifying

    Hi there I have 2 noises in my 1988 k1500 5.7l tbi. The first one I noticed going about 70 mph you would hear a screeching/whirring noise for just a split second then immediately it goes away. Engine warning light comes on.. after turning truck off and back on again the light goes away although...
  11. S

    High compression heads on a TBI 454

    Hello, I have put together a build list for my 1993 c2500 with a TBI 454. I figure the abysmal compression ratio could be boosted to make more power and improve economy. The list includes: less wimpy cam, hydraulic roller lifters, Edelbrock high compression heads, Edelbrock TBI intake, injector...
  12. U

    Good cam specs for build?

    So I had plans to do a 377 stroker but my 450r bike blew up bottom and top end and the suspension has been out for a while so I’m a bit tight on play money. Rather than doing an all out 377 build iv decided just to do a mild build on a 350. What are good can specs/can you recommend for the...
  13. Mitchell93

    Tbi 350 has no power on the road

    1991 K3500 with a Tbi 350 and 4l80e Idles fine, will revs up no problem, in park... when I take it out on the road, it won't go over 30 mph unless I go downhill, it just falls on it face, can hold it wot and it just don't Rev past round 2000, and just doggy, no power. It has transmission codes...
  14. U

    TBI or EFI options

    So the story is, I’m planning on building a 383 stroker. I have a regular cab short bed k1500 1990 with TBI 350 and 5 speed manual. Planning on swapping to a nv4500 so my tranny will hold up. Going carbureted is out of the question so what are my options for a reliable TBI or EFI setup. I’m...
  15. S

    Shift linkage

    So i have a 93 C1500. Just recently put a new (used) 4l60e in it. But i cant get it into park easily. I either have to throw it or physically pull the linkage on the tranny into park. I know the bushings are bad. But they were bad on the original tranny. And i never had this issue. I tried...
  16. J

    5.7 tbi swap ecu chip

    I have a 1991 Chevy c1500, originally a 4.3tbi, however I recently swapped to to a 5.7tbi junkyard engine. So far I have got it running and everything seems to be working okay other than it smelling like it is running really rich. From other post I have read about this swap everyone recommends...
  17. I

    TBI Injectors 2003 5.7 indmar Gm based

    Hi, I have no flow going through my injectors and I think I need to replace them, I just don’t know what part number that would be.
  18. Z

    Full throttle problem

    SORRY FOR THE LONG POST NEED YALLS HELP!!!!! Been a forum stalker for a long time.... love this site, and was planning a build thread..Ok, I've been doing this a long time and I think a tune is the answer but im looking for some help....I've followed this forum for a long time and there are A...
  19. H

    5.0 manual trans swap bin file

    Since the trans in my stock 1995 c1500 with a 5.0 (305) died on me this morning, I have decided it is time to finally put in a manual. for this, I've decided to just go with a nv3500, (the truck is completely stock and makes very little power so I'm not too worried about strength). I can't find...
  20. I

    1995 K1500 LS swap or TBI Rebuild + Exhaust

    I need some general advice and opinions. I have a 1995 K1500 with a TBI 350 in it that oil fouls cylinder 6 quite often. I’m thinking of either tearing the engine down to the short-block, inspecting the cylinders, replacing the heads, cam, lifters and putting in a timing set and putting it back...
  21. B

    My tailpipe is the size of a cocktail straw

    Ok not exactly, but it's definitely smaller than stock. I'm the third owner of an 88 Chevy G20 van with a basically stock 350 (iron manifolds, factory y-pipe, cat, etc) At some point the previous owner had the exhaust from the cat back replaced by someone who cobbled together such a goofed up...
    • BVRPLZR
    • Thread
    • 350 exhaust tbi
    • Replies: 18
    • Forum: Exhaust
  22. A

    Electrical issues. POSTED IN MAINTENANCE TOO

    I just got a surprisingly nice 1990 2500 350 TBI off marketplace for the low low price of free. Runs and drives better than it should but effectively nothing in the interior works. This thing has some pretty hardcore electrical gremlins, the previous owner did some real mickey mouse bull**** on...
  23. I

    1995 K1500 TBI 350 Running Rich

    Hello. I’m having an issue where my TBI 350 is running rich when cold and if you rev it a little it will spray a ton of fuel out of the injectors accompanied by black smoke. It runs fine when it’s warm. I recently replaced the intake gaskets, cleaned the EGR valve and replaced the CTS. Fuel...
  24. M

    My GMC stopped running

    Hello all, I bought a used GMC Yukon 1994 350 TBI, and the previous owner installed electric fans with a 140 amps alternator, I am not sure about the alternator. In the first week, I noticed that when I turned on the AC the battery gauge on the dashboard get down and the truck shuts off when I...
  25. R

    Need help 350 in my 91 caprice runs bad after 4 years

    I had the 350 swapped into the 91 Caprice 4 years ago it was from a 1992 C1500, it ran good the whole time, recently in the winter time it was close to about -30c and I hadn't plugged the car in overnight. When the car started it sounded like a tractor really high idle, I changed all my spark...

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