94 cevy 1 ton stalls at idle

Asked by 123jerry Feb 05, 2014 at 04:27 PM about the 1994 GMC Sierra C/K 3500

Question type: Maintenance & Repair

has got a new egr valve, new map sensor, new iac motor, new tp sensor. plenty of gas. it seems like the ignition just shuts of it does start rite back up

2 Answers

31,255

This is a TBI 454 (or 350) correct? Does it die with a trottle input? Check to see if the fuel injectors are spraying after it dies and when you try to re-start it. If the ignition module has not been changed recently thats where I would start. Its bolted to the top of the baseplate in the distributor. The pick-up coil could be tested also. Most of the time the ICM fails completely but it's worth looking at and easy to change (make sure you use di-electric grease or the supplied grease between the module and the baseplate or it cooks quickley). The p/u coil is a little deeper, you must pull the dist to change and re-time the engine.

Your Answer:

CarGurus Experts

  • #1
    Jake Thompson
    Reputation
    20
  • #1
    Michael Embry
    Reputation
    20
  • #1
    rpedgar
    Reputation
    20
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.