Question about 1989 GMC Suburban

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1989 GMC R2500 Suburban stalls after running for about 15 seconds. Will restart after waiting about 20 seconds. With the air cleaner off I noticed the fuel injectors kind of sputter then quit emitting fuel. Check fuel filter and is not clogged. replaced ignition control module.

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6ya6ya
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Posted on Jan 02, 2017

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IFIXALL
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SOURCE: my jimmy wont run properly untill i add fuel injector cleaner

Possibly a clogged fuel filter or bad plugs/wires.

Posted on Sep 13, 2008

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virgils
  • 39 Answers

SOURCE: where are the map and maf sensors located on a 1990 r2500 suburban?

your vehicle has a MAPS and not a MAFS, the MAPS will be passenger side of the intake manifold, above the valve cover and mounted on a bracket


Posted on Oct 13, 2008

  • 1 Answer

SOURCE: GMC 4.3 runs fine

EGR Valve

Posted on Dec 23, 2008

  • 468 Answers

SOURCE: Removing fuel pump from 1989 gmc suburban?

You'll have to take the fuel tank off, so make sure you have something to support it, while loosening the tank straps. Lower it down far enough to disconnect the sender and pump wires, and the fuel line. Drag the tank out where you can work on it, and you can carefully use a hammer and screwdriver and chisel to tap on the lock ring until it rotates the 1/4 turn it needs to come off. Remove, and replace it with the new one. While you have it open, it's easier to empty it out into gas cans so it's easier to put back up. You may want to put a light coating of a silicone based lubricant on the o-ring when you put the new pump in. After that's done, just make sure that you hook everything back up the way you found it, and put gas back in it, and you're done.

Posted on Oct 03, 2009

  • 432 Answers

SOURCE: I have a 1991 GMC suburban, it started fine and

You need to replace the fuel filter every 30000 miles.The gas stations tanks are full of dirt. Also check the flow of the catalitic converter.Put your hand at the tail pipe while someone is pushing the gas petal down. The farther they push the petal the more exhaust should be coming out.
I hope this helps you

Posted on Oct 06, 2009

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