1991 GMC Jimmy Won't start

Tiny
DEVON, 91 JIMMY
  • MEMBER
  • 1991 GMC JIMMY
  • V8
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
Just after I got gas I was driving and my truck turned off. I pulled over and tried to turn it back on. It would not fire. Tried several times and no luck. I got pulled home and was told that it might be the fuel pump if so where is it and how do I fix it? If not what else could it be?
Saturday, October 3rd, 2009 AT 7:59 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Welcome, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. If your TBI watch for an injector spray pattern. A spray pattern doesn't mean the pressure is ok. The pump is in the tank. With TBI system, pressure is around 10 psi.
Was this
answer
helpful?
Yes
No
Sunday, October 4th, 2009 AT 9:43 AM

Please login or register to post a reply.

Related Engine Not Running Content

Car Cranking but Not Starting? Try This
VIDEO
Car Cranking but Not Starting? Try This
Instructional repair video
Engine Not Starting
GUIDE
Engine Not Starting
Over the past 20 years at 2CarPros we have identified the top problems that are easily fixed. This guide can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE