Question about 1989 GMC Sierra
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Posted on Jan 02, 2017
SOURCE: 1999 Gmc Sierra has no power
Sounds like the fuel supply is inadequate. Check for a plugged fuel filter, or possibly the fuel pump is losing pressure. I had a 93 Chevy V6 that acted the same way, and after checking everything else I replaced the fuel pump, which solved the problem.
Posted on Jun 10, 2008
SOURCE: 89 GMC Sierra problem
there is an ignition module located rite beside the distributor cap on the distributor base these are well known for getting weak and heating up thus causing your engine to stall.
Posted on Oct 15, 2008
SOURCE: engine stalls when acceleration
sounds like poss throttle pos sensor prob./ could also be problem w/fuel pump not pumping enough fuel at high speed. poss fuel filter clogging also. have someone check pump pressure.
Posted on Nov 11, 2008
It sounds like it's the ABS module has gone bad, your going to have to take it to the dealer and have them service it. There are special tools that the average person don't have in there tool box. You can go to Auto Zone and see if there are any DTC codes, but if there are no light on the dash. It may not show any and the dealer will have to test the module. Good luck and hope this helps. keep me posted, be glad to help.
Posted on Jun 09, 2009
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