Starts but stalls immediately?

1993 GMC JIMMY
180,000 MILES
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JESSE CALLAHAN
  • MEMBER
  • 1 POST
Cranks up but stalls immediately, replaced fuel pump, now I don't know what to do.
Feb 2, 2025 at 10:39 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,232 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.
Feb 4, 2025 at 1:56 AM
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