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Anonymous Posted on Jan 28, 2013

2003 gmc savana rough idle then shuts off

Have a 2003 gmc savana 3500 6.0L engine not getting any code however the engine has a rough idle put it in gear either reverse or drive it shuts off have so press gas for it to keep running, also after driving come to stop light shut off, as long as the pedal is press down trying to speed up it runs fine, anyone have similar problems and have any suggestions

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Anonymous

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  • Posted on Jan 28, 2013
Anonymous
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Does it have any power when you start moving? I've seen a lot of plugged catalytic converters. You may want to have an exhaust back-pressure test done.

5 Related Answers

Anonymous

  • 62 Answers
  • Posted on Apr 28, 2009

SOURCE: Engine bogs down and shuts off while driving down the road.

could be vgr valve or the brain box trying to go out vgr valve u can remove and scrape the carbon deposits off using a wired brush alot of times when it is the vgr valve thats all it is they vary rarely have to be replaced

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Anonymous

  • 2 Answers
  • Posted on Jul 12, 2009

SOURCE: 95 gmc safari problems

yes delivers the fuel bat is not enaf pressure replase fue pomp end you be ruaning agein

Anonymous

  • 1 Answer
  • Posted on Oct 07, 2008

SOURCE: 1995 GMC Sierra

check you ideler sensor i had the same problem on

Anonymous

  • 221 Answers
  • Posted on Mar 11, 2009

SOURCE: gmc savana van will stop running while driving or start sputterin

It could be a clogged fuel filter or a bad fuel pump. Also try replacing the spark plugs and spark plug wires and having the timing checked. Good luck.

Molson02536

Harvey N Tawatao

  • 3854 Answers
  • Posted on Jul 01, 2009

SOURCE: my gmc s-15 jimmy 4x4 wont stay running. When i

These trucks were equipped with a TBI, (Throttle Body Injector). This looks like a modified Carburetor with two large fuel injectors placed over a two barrel throttle plate and venturi body. You need to check the base gasket on this TBI Unit. The base gaskets were notorious for becoming brittle and cracked . If you remove the air cleaner and open the throttle plates you may see a chunk of black hanging out down below the throttle plates. If you see this, this is the base gasket and it cracked and needs to be replaced.
The Idle Air Control Solenoids were also an issue on these truck too. This is a round part that will have a plug on it normally near the base of the TBI Unit. This will just require a quick replacement.

The last thing that it might be is the electronically controlled EGR Valve. This valve used to cause some trouble from time to time, and I know there was a warranty campaign on these parts. the valve will need to be replaced or cleaned if this is the case.

Good luck and hope this helps friend, Keep me posted and here is a link for you to retrieve DTC codes. http://www.troublecodes.net/GM/

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