Shut off while driving, engine cranks but will not start?

Tiny
JULES1777
  • MEMBER
  • 2003 GMC SIERRA
  • 4.3L
  • V6
  • AUTOMATIC
  • 192,797 MILES
There is spark, fire and no start. Cranks and Cranks. But no start. Stalled out while driving.
Wednesday, March 1st, 2023 AT 6:01 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

In most cases, either fuel or ignition spark is lost. If it does have spark at the plugs, try this. See if it starts using starting fluid. If it does and then stalls, we know it is a fuel-related issue. Even if you hear the pump actuate and there is fuel pressure at the fuel rail, the injectors may not be getting power.

Try this and let me know what you find.

Also, here is a link you may find helpful:

https://www.2carpros.com/articles/car-not-running-advanced

Let me know.

joe
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Wednesday, March 1st, 2023 AT 8:30 PM

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