Question about 1996 Cadillac DeVille

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Fuel pump change

Is there an easy way to get to the fuel pump on a 1996 deville northstar?

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I do not know but give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local Cadillac dealership in the parts department and they be able to print you off the pictures and diagrams you will need wish you the best of luck Michigan Man.

Posted on Feb 08, 2010

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The pump is in the tank, which must be dropped. I was going to replace it myself but the weather now is impossible. I had a garage do for me and was $200.00 that was a deal. Do not buy an off brand pump, buy the OEM Delphi. It cost me 300.00 plus 14.00 for the new harness all from NAPA and you wont regret it. The after market pumps fail way to soon.

Posted on Feb 10, 2010

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1 Answer

My 1996 cadillac deville keeps running hot, I have changed the thermostat and had the cooling housing gasket changed but it still runs hot not all the time.


Do you have the Northstar engine? If so, there is an issue with head bolts pulling threads. Clues are periodic overheating. Look for exhaust in the cooling system. What happens is under load the compression gases push coolant out, and then you get overheat.
Pressure test the cooling system, there is a small hose that runs from the engine to the coolant tank, sometimes that plugs and air gets trapped. Some models suffer water pump impeller failure, easy to check with a special removal tool.
The head bolt issue is EXTREMELY expensive to fix correctly. Essentially you need to time-sert the bolt holes, and to do that you need to give a bare block to the machine shop.... Real bummer as the repair typically exceeds what is reasonable to invest in the vehicle, thereby rendering the vehicle useless.
I did repair mine, because I really liked the car.This issue should not happen.

Jun 05, 2011 | 1996 Cadillac DeVille

1 Answer

I have an 1997 deville that when it sits overnight it dont want to start like it is starving for fuel,but once it does start you can shut it right off and it will start right back up like it should.i...


I have a 1997 Cadillac Deville Limo that is based on the 4.6L Northstar Engine.
I think that you're on the right track changing what you thought might be the problem.
I haven't personally expeienced any problems with fuel delivery on my vehicle, but just had it tuned up with new spark plugs, wires, and air filter at 115,000 mi. or so.

I think, though, that if the fuel filter isn't clogged, and it is changed, that it will do little to make the car start better.

I agree, a fuel pump will require dropping the tank, which you probably don't want to do right away.

Good luck on this repair.

Nov 12, 2010 | 1997 Cadillac DeVille

1 Answer

Problem with overheating on 1996 Cadillac Deville with Northstar engine. The information screen read "engine overheating", "idle engine" and "change oil" all within one minute. Are these issues related...


The oil life resets to zero after the engine overheats. Check for external leaks first, make sure the water pump belt is still there and turning. The most likely cause if the car has over 70,000 miles is head gaskets.

May 18, 2009 | 1996 Cadillac DeVille

1 Answer

97 deville northstar was running fine now wont start


The faulty component was the fuel pump relay.

Apr 18, 2009 | 1996 Cadillac DeVille

1 Answer

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

Dec 15, 2008 | 1996 Cadillac DeVille

1 Answer

Cadillac


this cars are very coming with the leak at the fuel pressure regulator, all you have to do is locate the regulator for the fuel, it is on the fuel injector rail, and unplug the vacum hose if you see any fuel or smell like fuel inside the hose that means the regulator has to be replaced,

May 27, 2008 | 1996 Cadillac DeVille

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