I have a 1989 gmc 2500 5.7 tbi Very hard cold start

Asked by Brocklee6 Dec 13, 2016 at 11:36 PM about the GMC C/K 2500 Series

Question type: Maintenance & Repair

When the truck sits for a few hours I have
to crank for almost 60 seconds some times
to start. Have replaced fuel pressure
regulator, fuel filter. I don't think it is the
fuel pump, when it does start it runs great.
Any ideas?

1 Answer
295

Oddballtruckguy answered 7 years ago

tennisshoes is right but you can also check the Throttle Body gasket and it could be worn out. When that gasket wares out it will suck in too much air under the throttle body. Cheap fix gasket under 5 bucks

Mark helpful

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