1996 GMC C1500 truck will turn over, but not start.

1996 GMC C1500
100,452 MILES • V8 • 2WD • AUTOMATIC
Avatar
JSKI5669
  • MEMBER
  • 1 POST
replaced starter, new battery, spark going to plugs and no deposits or anything on distributor. truck will turn over but not fire up. i can jump it and it will start up, and run perfectly. but if i turn it off i can't restart it without jupming it.
Aug 10, 2010 at 6:23 PM
Advertisement
Avatar
JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Without jumping it, can visually check for spark at the plugs? Also, use a gage and check fuel pressure, key on engine off. I'm not saying it is the fuel pump, but, key on or engine cranking, the pump gets battery voltage. Engine running, the pump gets alternator voltage, there is a difference.
Aug 10, 2010 at 6:57 PM
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.