Tbi 5.7 runs then dies

Asked by GuruWHM6C Aug 03, 2024 at 02:56 PM about the 1989 Chevrolet C/K 1500 Cheyenne Extended Cab LB 4WD

Question type: Maintenance & Repair

So
I have a 89 Chevy K 1500 5.7, it runs fine. starts up runs for
a little while as soon as it gets hot, it dies I and you can turn
around and start it right back up.and if i just started up take
off. Drive down the road for an hour and it runs fine.I've
replaced every sensor.  2 fuel pumps fuel pressure's good,
not losing power to the fuel pump 2 distributors, Ignition
coils, map sensors. Literally, everything I cannot figure this
out. Any help would help.

3 Answers
309,895

Gene answered 2 months ago

Seen something like this many years ago, long story short it wound up being the ROM chip. Replaced it and the problems went away. It took days to track it down. So do the diagnostics.

Mark helpful
157,405

James answered 2 months ago

Have you tried getting any trouble codes out of the computer? If it is a computer (ECM) or PROM (Programmable Read Only Memory) problem there may be a code stored. But the computer doesn't like to "tell" on itself. It will tell on everything else though. If you replace the ECM the PROM gets transferred to the new ECM. So the problem, if it is the PROM, may persist. Jim

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 213 nationwide C/K 1500 listings starting at $7,999.

ZIP:

Own this car?

Share your experience with others.

1989 Chevrolet C/K 1500

Write a car review

Review another car

Shortcuts

Search Chevrolet C/K 1500 Questions

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    15,920
  • #2
    Rowefast
    Reputation
    9,650
  • #3
    John Saffrahn
    Reputation
    6,460
View All

Know more, shop wisely

Search

Related Models For Sale

Used GMC Sierra 1500
1,908 Great Deals out of 67,786 listings starting at $2,500
Used Ford F-150
6,538 Great Deals out of 159,179 listings starting at $993
Used Chevrolet C/K 2500
57 listings
Used Chevrolet Camaro
650 Great Deals out of 8,388 listings starting at $2,077
Used Chevrolet S-10
4 Great Deals out of 157 listings starting at $1,495
Used Chevrolet C/K 3500
53 listings starting at $9,995

Used Cars For Sale

1997 Chevrolet C/K 1500 Cheyenne Extended Cab LB 4WD For Sale
1 listing

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.