seem to be having a problem with the idle on my gmc jimmy.When I stop at a light the idle goes from 7000 rpm up to 10000 rpm. I think that I need to replace the idle air control but do not know where it is located at. Can you give me a diagram on that
93 gmc sierra, when I turn the headlights on the radio cuts out dashlights go dim, check gages light...
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93 gmc sierra, when I turn the headlights on the radio cuts out dashlights go dim, check gages light comes on also does it when I put turn signals on and apply the brake
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