Question about 1990 Cadillac Deville

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1991 cadillac deville fuel problem

I think the fuel pump is out but i dont feal like droping the fuel tank is their another way to replace it or to bypass it or even to check to see if its even out or is their a reset switch and where is the relay

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Fuel pump relay is in engine compartment on drivers side under the flap the two relays that are together ,it is the bottom relay,,u cant by pass.if relay is good ,if it clicks when turning over and key on and off (it should click and go off if key is turned on) then use a test light and ground it find wires going to top of tank and probe wire have some one turn key on ,it should light up test light and go off ,if this happens ,replace fuel pump

Posted on Jul 03, 2009

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Where is the fuel pump locate on the 1991 cadillic sedan deville

Posted on Aug 20, 2009

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Hello,

Unfortunetly Cadillac does not have an access panel for fuel pump access until the newer years. You will need to drop the tank. Also, don't let the tank come slamming to the ground, make sure you take it slow so you dont dammage the lines to the sending unit.

Good Luck!

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