1991 gmc sierra k1500--long crank to start vehicle

Asked by Jan 11, 2017 at 04:43 PM about the 1991 GMC Sierra 1500 K1500 4WD Standard Cab LB

Question type: Maintenance & Repair

Cranks for about 4-5 seconds then starts. after the first start it fires right up.
Already replaced fuel pump, fuel filter, and and TBI injectors. What else could
it be?
Thanks,
Ruben

1 Answer

81,885

First, check the spark to see what it looks like, it should be white in color, not a orange color. Next check the fuel pressure. It may be the spring if the fuel regulator is weak, and so you may need a TBI rebuild kit, or if you can find a regulator kit, I think I've seen those.

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