Question about 1998 Cadillac Seville

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Installed new fuel pump and fuel filter in 1998

Installed new fuel pump and fuel filter in 1998 cadillac seville engine turns over but will not start

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Is there a check engine light ? I ran into this problem with other domestic brands, most common problem I found was the crank position sensor. PCM wasn't getting a signal from cps in turn not power the fuel pump. First thing I would do is check for DTC. If crank sensor shows good, you can unplug the pump and with a test light check power supply to the pump. You will either need to have some body cycle the ignition to the on position while you are checking for power or position the test light were you can get to it quickly while you cycle the ignition, reason being pump will only get power for a few seconds with out the engine running. The vehicle was in a rear end collision prior to this was it ? Some manufactures put an impact switch in the fuel circuit to shut off fuel in the event of an accident, but that was more of a Ford thing. GOOD LUCK

Posted on Jul 06, 2014

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  • Cadillac Master
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MAKE SURE YOU DID REPLACE FUEL PUMP WITH NEW SOCK.THE OLD PUMP SOCK IN THE TANK STOPPED UP.CHECK FUEL PUMP FUSE AND RELAY.

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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1998 cadillac seville fuel pump wont run....fuel pump relay is not the issue. A snap on scanner indicates I have a ground to earth issue./...how do I rectify this?


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