Question about 1989 Cadillac Sedan DeVille

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Replace fuel pump 1989 cadillac deville - 1989 Cadillac Sedan DeVille

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Hello, The fuel pump is inside the gas tank. Remove the exhaust, Disconnect and remove all hoses and lines, also disconnect all electrical wires, remove 4 bolts from straps holding tank. Drop tank down. Remove lines and hoses from top of fuel pump module, remove lock ring, pull fuel pump module, turn unit as necessary so you don't destroy the fuel level sender. Hope this helps

Posted on Sep 04, 2010

Testimonial: "Job was completed in about two hours. Did not have to remove exhaust. Thank you. Also remember to buy new strainer on pump to keep warranty valid."

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Posted on Jan 02, 2017

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SOURCE: replace my fuel pump relay

The fewl pump relay is located in the bottom part of the fuse box under the hood. It is labeled on the cover where it is. It is one of the big black square s usually taped to the one above it. Cost is about fifteen bucks at advance auto.

Posted on Feb 22, 2009

  • 38 Answers

SOURCE: 1999 Cadillac Deville - How to replace fuel pump?

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!

Posted on Dec 15, 2009

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SOURCE: 1996 CADILLAC DEVILLE, NO POWER TO FUEL PUMP

Check for a burned fusible link under the hood. If you have power at the fuel pump relay, you could have a bad ignition switch or bad oil pressure switch...accordianman

Posted on Dec 15, 2008

SUPERMAN_B_1
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SOURCE: fuel filter replacement 1993 Cadillac Deville

hello. it should be located under your car on a line that's coming off your fuel tank and yes you can do this your self very easy to do ,you'll need a few box/open ended wrenches that's it you'll need to check the fitting or the nut on each side of the filter to see what the sizes are,befor removing the filter you'll want to take off your gas cap and remove your neg battery cable ,not when you find the filter it'll have nut on each side all you have to do it loosen them but make sure that you don't break the fuel line or kink it and after you have both sides loose then just finish turning them off and there you go the filter is off, nope no removing the gas tank some newer models you do and the filter is attached to your fuel pump and don't need replaced but for your car and year you wont need to remove the tank. good luck

Posted on Mar 25, 2009

emissionwiz
  • 76846 Answers

SOURCE: 1997 cadillac deville water pump

it is on the front of the engine see photo
0648479.jpg

Posted on May 09, 2009

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1 Answer

How to replace1989 cadillac sedan deville fuel pump


TO replace the fuel pump, remove the gas tank. When replacing the fuel pump also replace the strainer on the bottom of the pump and replace the fuel filter.

Sep 20, 2010 | 1989 Cadillac Sedan DeVille

1 Answer

No fuel pressure when cranking over. dump gas down carb and runs til fuel is gone. Its a 89 caddy deville with 4.5, has sat for two years. Is it the fuel pump or could it be the fuel relay? If relay, where...


More often than not it is the fuel pump, especially with sitting for a couple years, hopefully empty if not try and get out as much of the old gas as possible when you replace the pump.

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Have 1989 CADILLAC DEVILLE ,WAS RUNNING FINE BUT REPLACED THEMOSTAT AND NOW SOUNDS LIKE TRYING TO START BUT NOT . DONT NOW IF FUEL PUMP NEEDS TO BE RESET OR WHERE ITS AT ON CAR? ANBODY HELP THANKS


the fuel pump is inside the tank. did the distributor cap get wet when you were installing the thermostat? check to see if the wires are pluged into the distributor cap well. if you use a fuel pressure gage you will be able to determine if the fuel pump is working.

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1 Answer

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The fuel pump relay is located behind of the glove box. The fuel pump fuse is located in the same box (Relay Center). The fuel pump relay is either the 2nd or 3rd one down in the 2nd row. You may want to check your computer codes and make sure it is not your ECM or BCM as they can shut down ones fuel pump too.

Jun 21, 2008 | 1989 Cadillac Sedan DeVille

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