Starts but stalls immediately?

Tiny
JESSE CALLAHAN
  • MEMBER
  • 1993 GMC JIMMY
  • 180,000 MILES
Cranks up but stalls immediately, replaced fuel pump, now I don't know what to do.
Monday, February 3rd, 2025 AT 6:39 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 49,440 POSTS
When it stalls do you lose spark or fuel? Will it keep running on starting fluid? Also is the security light flashing? Please go over this video to get us more information on what's going on:

https://www.youtube.com/watch?v=lXLJbuAZ4CE

Also, this guide can help. It could be a vacuum leak or stuck EGR valve.

https://www.2carpros.com/articles/stall-at-idle

Please go over these guides and get back to us.
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Tuesday, February 4th, 2025 AT 9:56 AM

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