1996 chev Z71 5.0l,,truck starts and runs for awhile then stalls fast with no hesitation and then wont start. I.d come back in 20 minutes and it will start and run again. I can go 10 miles with no issues then it just quits. the fuel pump is working. i've had this problem before and I replaced the dist. cap & rotor and wires and it ran great but this time that didnt work. HELP
I think it's your valves. I had an old Chevy that did that and it turned out to be valves. Good luck
How about replacing the coil - might have a thermal issue and shut down when it gets hot.
SOURCE: 1989 chevy g20 STALLING
to replicate running condition with module,test module while heating it with a hair dryer or heat gun,if module is bad when engine is warm,it will show up using this method
SOURCE: 2000 chevy silverado 1500 4.3 eng
Chevy Trucks, Blazers, S10 pickup and the like will vapor lock ecspecially the 2000 models. Do not tighten the gas cap past 1 click. There is a tube that runs from the top of the tank down and this gets hot and collapses or burns in half. We just bought a reinforced rubber tube cut it to lengh and use it instead of part and it's worked grat for 2 years so far.
SOURCE: hesitates on acceleration
Does the car always hesitate during acceleration? If it ALWAYS struggles when it starts or ALWAYS hesitates on acceleration then I would say the issue is fuel delivery. If the problems are more intermittent and come-and-go then it could be an electrical issue.
I would start by changing the fuel filter. Changing plugs, wires, cap, and rotor are all good things to do as your budget will allow. I doubt you will have to change your injectors.
If you end up replacing any rubber fuel line, be sure to use the high-pressure stuff made for use on fuel injected cars.
I hope this helps! -Nick
SOURCE: 1996 astro van stopped running
Sounds like dirty gas and the fuel filter is clogged...try changing the fuel filter...some are under the car, but most are mounted against the firewall in the engine compartment.
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when the engine does restart it has no hesitation. when it does start it is quick and responsive. i can drive it for while then it just stalls and wont start. Like I said I can come back in ten minutes and it will start up like nothing ever happened driving with no issues. The next day i could drive 5miles then it will just stop dead. It always wants to turn over but wont start. I have sprayed either into carb. and it does start. but quits. The fuel pump is brand new. the cam sensor is brand new i replaced it because that is what code showed up on scan . AHHHHHH!!!!!
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