Question about 1989 GMC Sierra
Have you replaced the fuel filter? It;s under the drivers side in the frame rail.
Posted on Aug 11, 2017
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Posted on Jan 02, 2017
Possibly faulty ignition module is the problem, stalls when engine is hot when you sit for a while it cools off and runs again until it heats up again, those are usually the symptoms of a bad ignition module and after a while it may give out all together and not run at all, usually if the module is at fault it shuts down the fuel pump so the engine don't load up with fuel, do to when engine continuously cranks over the injectors never stop squirting fuel and flood the engine do to lack of spark which is produced by the module, this could possibly be your problem.
Posted on Nov 01, 2008
SOURCE: 1996 gmc siera 4.3L
I agree with emissionwiz, pump may be making noise but I suspect little or no pressure getting produced. Would take a shop 10 min. to attach fuel pressure gauge & confirm.
Posted on Mar 08, 2009
maybe your iac valve is not working? it takes place of a choke or temp sender to computer could be bad which controls t I.A.C. known as the idle control valve,do you have any codes?
Posted on Sep 01, 2009
i have an 03 yukon and i just replaced the fuel pump and it ran for 2 hours then it just died on the highway. it turns over but will not start. whats wrong with it???
Posted on Jun 13, 2010
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