1994 Chevy G20 5.7 stalling / cutting out

50

Asked by Wes Sep 25, 2017 at 07:15 PM about the 1994 Chevrolet Sportvan 3 Dr G20 Passenger Van

Question type: Maintenance & Repair

94 Chevy G20 5.7 with TBI cutting out. Started when can
shut down at idle then wouldn't start. About 2hr later van
started but would only run about 10min. Been doing this
ever since but run time is getting shorter. May get 5
minutes when cold before it starts to stumble, climb,
stumble, stall. At idle in park. I have replaced fuel filter, fuel
pump, fuel pump relay, oil pressure switch, EGR, PCM, IAC,
plugs, wires, distro cap, rotor, coil, ICM. I'm stuck and
frustrated. PLEASE help!

1 Answer

50

Update... new thermostat fixed the issue. Thermostat was not allowing the engine temp sensor to see correct temperature causing computer to lean out fuel delivery when it warmed up and went to closed loop. Last thing I would have expected but she runs great now!

5 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Guru9FSV8
    Reputation
    70
  • #2
    Wes Warren
    Reputation
    50
  • #3
    Jerman123
    Reputation
    30
View All

Find great deals from top-rated dealers

Search

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.