1995 GMC Jimmy problem starting

1995 GMC JIMMY
165,000 MILES • 6 CYL • 4WD • AUTOMATIC
Avatar
LASHANHAMPTON
  • MEMBER
  • 1 POST
after my truck sit for 13 hours or more it takes four or five turns before it will start.
Dec 31, 2007 at 6:01 AM
Advertisement
Avatar
CLY
  • CAR REPAIR CONTRIBUTOR
  • 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
Dec 31, 2007 at 6:49 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.