When the car is started it has a rough idle. When the car is driven, it hesitates, revs while driving then hesitates again. At red lights, it seems as if the car will stall but it hasn't yet. Until the speed hits about 40 or so, the car tends to accel then decel constantly. All help is appreciated.
Check the tps.
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: 1995 chevy cavalier intermittently stalling while driving
it is most likely **** in your gas tank the **** gets stuck in the fuel pump and then it wont send fuel let me know what you think
SOURCE: 1997 Chevy Lumina 3.1L Security Light Problem
check your inteior light switch. for a tempory fix remove the bulb
SOURCE: rough idle then stalls
Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.
Testimonial: "Found the problem vacume leak like you said."
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