Question about 1996 Chevrolet Cavalier

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Have a 96 chevy cavalier. replaced IAC,fuel pump assembly, fuel filter, tested and adjusted TPS but still haveing problem with car shutting off after about 30 mins of driving. Also once "warms" up during idle low oil pressure light turns on. Any Suggestions?

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Anonymous

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If your oil pressure gets to low it can turn off the fuel pump. This may also have saved your engine. The ECM turns on the fuel thru the fuel pump relay for about 5 seconds. When engine is running oil pressure sender supplies the voltage to the pump. When engine shuts off check oil pressure and voltage to fuel pump.

Posted on Jan 17, 2011

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  • shawneepanko Jun 16, 2011

    How do you get the car to start back up after you put oil in the car

  • Anonymous Jun 16, 2011

    If the engine was shut off because the oil pressure sender cut voltage to the fuel pump, it will start back up when voltage is returned. Try turning the ignition off for five to ten seconds then try to restart engine. The engine should restart because the ECM will re-prime the fuel pump. The best way to check the fuel pump is to first hook a voltmeter to the to the grey fuel pump prime wire. I am not sure where it is under the hood, but it is there.

  • Anonymous Jun 16, 2011

    Tried to post a diagram I found on Autozone but it would not let me do it. if you need to go to you autozone store and get them to print one for you.
    Good Luck

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Gayle Harrelston

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Usually a drop in oil pressure after warm up means the main bearings are worn and oil is leaking past them to the point it wont keep good pressure at warm idle go with a thicker oil it may help I would be willing to bet there is a slight knock in it if ur losing pressure the ecm could be killing the fuel pump bypass the sending unit and see if it still shuts off

Posted on May 20, 2013

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