Question about 1993 GMC Jimmy

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Ok so on my 93 gmc jimmy i have did everything everyone has said. i changed the ignition control module and checked the all the spark from the spark plugs. when im driving it and i go to push on the gas it acts like it wants to die but if i let off the gas it will stay running. if i am barely on the gas it just feels like im losing power. cant figure out what it could be the only other thing i can think of is its the spider in it.

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  • 6 Answers

You try catalitic convertor?

Posted on Oct 11, 2013

  • Dustin Herbst Oct 11, 2013

    ok ill check that but it drives fine then loses power when i try to gas on it so i shut it off and restart it and it will drive fine for a little but and do it again

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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 975 Answers

SOURCE: hi my name is fred

Fred,
Did you check for spark at a plug wire or at the coil wire? Check at the coil wire,if there is spark there,the ign rotor is bad,very common to have the hot spark "drill" a hole thru the rotor to the dist shaft. Also check for play at the rotor shaft. Distruibtor bushings tend to go bad,making the trigger wheel hit the pickup coil,killing the spark.

Posted on Nov 19, 2010

rfoulds85
  • 128 Answers

SOURCE: 1995 gmc jimmy 4wd 4.3

The problem is either your fuel pump relay is overheating our your fuel pump is over heating. They also have the problem with the wire connector on top of the fuel pump melts. This is a known problem with them, when you but a new fuel pump they give you a new connector and a service bullentin regarding this problem.

Posted on Apr 28, 2011

emissionwiz
  • 76848 Answers

SOURCE: My 98 gmc 1500 V8 5.0l won't start. Has good spark

Spray starting fluid into the air intake of the engine, if it starts and you have fuel pressure you have no injection or injector pulse as we call it. Check ECM fuse one and two for continuity if it starts with fluid..

Posted on May 25, 2012

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