I have a 95 Buick Skylark and it will start fine, but after a lil while it will go dead and I have to wait anywhere from 15-45 mins. for it to start back up. I have done replaced the fuel filter. It will sometimes go about .02 of a mile then again sometimes 4to5 miles. Please Help !
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Re: need to figure out why the fuel pump is not
Time to do a fuel pressure test to see if its got a bad or posible weak fuel pump. Some times when the pump gets warmed up it may loose pressure, if pump does not maintain a certain pressure or drops a few # under recamended pressure car will not run hense fuel pressure test. You can rent the pressure tester from most major auto parts stores and they can show you how to hook it up and what the pressure should be.
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I too have a 97 buick skylark custom, that hasn't been cranking. Heres what I have figured out so far, so you may have the same problem. Heres the first question - Is the theft system light flashing when you try to crank the car? Cause if it is, it means the car isn't wanting to recognize your key as the correct key which is causing the car to go into tamper mode which disables fuel to the engine, in which case you have to turn the key back to the start position and wait for the light to stop flashing then try to crank it again.
P.S. i'm not sure why this other thing would be a problem but i lost my gas cap right before this started happening and someone told my that might trigger the sensor, do you have yours?
It could still be the fuel pump, when it gets warmed up it may not put out or maintain the correct pressure because its geating weak even if you can hear it running, just a few #'s under the recamended pressure and it won't run, but when it cools down it works again, but sooner or later it will go out altogether. Has the fuel filter been chg.? that could do it to and is something that is often overlooked. It would be best that the next time it quits running that would be the time to do a fuel pressure test that way you would know if its a pump problem or something else, Its a easy and cheap test to perform, and at the very least you can elimanate that as the problem.
Could be a faulty Mass Air Flow Sensor, Idle Air Control Motor, just needs a tune-up, bad fuel pump, clogged fuel filter, bad spark plug, faulty computer... hard to tell. Take it to a shop to figure out what is wrong with it and if you are able, fix it yourself, otherwise let the shop fix it.