2002 GMC Sierra Truck intermittingly stalls

Tiny
BHOLLEY990
  • MEMBER
  • 2002 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
My GMC pickup truck stalls intermittingly.I can drive for 5 miles or 50 miles but at some point the truck will just stall and I need to coast to a stop.I have changed the fuel pump but it still has the problem. If I wait a period of time - could be 10 minutes or 45 minutes the truck will start again and seems to run fine. Any ideas?
Thursday, June 18th, 2009 AT 10:25 AM

5 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check Jake's video on this it's a Sonoma hes working, but it shows a GM issue with pins and connectors.

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals
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Thursday, June 18th, 2009 AT 3:24 PM
Tiny
BHOLLEY990
  • MEMBER
  • 3 POSTS
This does not seem to solve my problem. It appears to be something with being hot. If I wait a period of time it will start again.
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Monday, June 22nd, 2009 AT 10:00 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
You did say there are no codes? SES not lit? Check the crank sensor, some are temp sensitive when going bad. Does it crank? Or nothing when the key is turned?
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Monday, June 22nd, 2009 AT 1:36 PM
Tiny
BHOLLEY990
  • MEMBER
  • 3 POSTS
Yes it does crank but it acts as if it is not getting gas. Then aftert waiting like 30 minutes it start as if nothing was ever wrong.
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Wednesday, June 24th, 2009 AT 11:29 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Start with the basics, and work your way up, Last tune up was? Wires plugs ALL filters? If all that is ok, check for a stuck EGR, then test fuel pump pressure, If it won't restart, determine what's missing, the engine needs three things to run, Spark at all plugs, gas to all cylinders, and compression in all cylinders, tho an engine may run lacking one in one cylinder, it won't run very well!
https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Go here and checkout our video.
https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm
and this one! Let me know what isnt working, geas or spark...
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Wednesday, June 24th, 2009 AT 1:31 PM

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