1999 GMC Jimmy w/ 4.3. Engine will not fire after sitting for 10 days, have spark and fuel pressure

Tiny
H2OSTUD
  • MEMBER
  • 1999 GMC JIMMY
  • 156,000 MILES
Hi, I have a 1999 GMC Jimmy w/ 4.3. I just got back from a 10 day vacation and I cannot get the engine to fire. I have used a fuel pressure gauge at the fuel rail and have confirmed 62psi when I turn the engine over. I have also verified that there is spark coming from the coil wire. I have also confirmed that there is spark at the plugs by pulling off the #1 plug wire. The engine will just turn over with out any attempt to fire. I have also tried pouring fuel into the throttle body and spraying starting fluid as well. Does anybody have any suggestions?
Wednesday, June 27th, 2012 AT 2:18 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
62 looks good. I would re verify spark. Does not make sense that it wont fire up. Spraying with no response indicates a spark issue.

Roy
Was this
answer
helpful?
Yes
No
+1
Wednesday, June 27th, 2012 AT 2:43 AM
Tiny
H2OSTUD
  • MEMBER
  • 2 POSTS
I have verified that twice already. If I do have spark and proper fuel pressure it mean that the timing of the spark firing could be off. Would a bad cam sensor, crank sensor, or ignition control module cause that?
Was this
answer
helpful?
Yes
No
Wednesday, June 27th, 2012 AT 3:55 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