2000 GMC C2500 Stalls Then Won't Start

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YUKONSLY
  • MEMBER
  • 2 POSTS
This morning my truck just up and quit. I left the house and when I tried to accelearate it stalled. Hard to start and would idle at about 2500RPM. Tried to put it in drive and accelarte....cut out and stalled. It was very difficult to get going again and I could not give it any gas but it would idle. A few minute later it would not start at all. let is sit for about 30 seconds then it would run again for 2-3 seconds...then would slowing idle down until it stalled. If I tried to start it immediately it would only turn over and not run. If I repeated the rest period it would start.

Should I be thinking fuel pump or passlock?

Yukonsly
Jan 12, 2006 at 5:20 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
fuel pump, also check for vacuum leaks
Jan 12, 2006 at 9:48 AM
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YUKONSLY
  • MEMBER
  • 2 POSTS
It was the fuel pump....replaced...works fine.

Thanks....goto love extended warranty!

Yukonsly
Jan 12, 2006 at 11:07 AM

Suggested Repair

Replace the fuel pump and check for vacuum leaks.

Conversation Summary

A 2000 GMC Sierra stalled under acceleration, idled very high, and became difficult or impossible to restart until it sat briefly. The owner asked whether the fuel pump or Passlock system was at fault. The expert recommended the fuel pump and also checking for vacuum leaks. The owner later confirmed that replacing the fuel pump fixed the problem.

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