1994 Chevy Silverado with a 454

Asked by Guru1V593 Aug 30, 2019 at 09:38 AM

Question type: Maintenance & Repair

85,000 on this truck. Always started
first crank. Now after going 10 miles
or more (engine warm up). & you shut
it off it will not start at all. Gas in the
carb will get it to fire but not stay
running. Let it sit for awhile, then it
starts. Mechanic could fine nothing
wrong.?

1 Answer

89,695

Even if the engine responds to fuel sprayed into the intake, your car cold have a fuel or electrical problem; really could be either. It could be leaking fuel injectors flooding a hot engine. It could be a bad sensor: crankshaft position, cam position, or maybe even the engine coolant temperature. Might even involve ignition components, such as coil or igniter. Without actually seeing the car, it's not possible to say what the exact problem is. Did your mechanic look for codes? If so, that should give you some direction.

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