1995 GMC Jimmy problem starting

Tiny
LASHANHAMPTON
  • MEMBER
  • 1995 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 165,000 MILES
After my truck sit for 13 hours or more it takes four or five turns before it will start.
Monday, December 31st, 2007 AT 6:01 AM

1 Reply

Tiny
CLY
  • MECHANIC
  • 308 POSTS
There is a drain-back valve in the fuel pump/sender assembly that is probably allowing all the fuel to drain back out of the lines. About the only way to check it is with a fuel pressure gauge hooked up while it is happening. Make sure that the fuel pressure comes up to spec and that it does it one the first key-up cycle.

Cly
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Monday, December 31st, 2007 AT 6:49 AM

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