1995 GMC Jimmy problem starting

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 30, 2007 at 10:01 PM
Advertisement
Avatar
CLY
  • ✓Experienced 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
Dec 30, 2007 at 10:49 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle