Just driving along and the truck stops ,pull fuel line off carb. no fuel coming out.

20

Asked by Aug 06, 2016 at 10:23 PM about the 1993 Chevrolet C/K 1500 Cheyenne Standard Cab LB

Question type: Maintenance & Repair

for some reason the fuel stops getting to carb, replaced fuel pump last summer . it just stops like you shut it off. wait an hour or four and it might start.And run maybe few hours or few days, then stops. HELP ME PLEASE.

1 Answer

24,755

Sounds like a classic case of vapor lock, fuel is vaporizing in the fuel line and can no longer flow like a liquid, especially if you still have a mechanical fuel pump/carburetor (fuel pump will just suck vapor/air). Check if there is something causing excessive heat near the fuel line. Higher ethanol fuel is more prone to vapor lock.

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