Question about 2002 Cadillac Deville

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Does the water pump on a 2002 cadillac deville make noise when it is going bad?

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  • Contributor
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Usually not, but bad bearings would.... it would be a squealing, or possible "grinding" noise. If the impeller has deteriorated (due to poor manufacturing materials), or a defective one was installed in the pump... it would generally cause the engine to run hotter than normal, but you would not hear any noise unless a piece of the impeller became lodged in the pump and the blades were hitting it. I have also heard of impeller blades becoming "Warped" (Due to cheap/defective parts being installed), which would cause them to hit the side of the waterpump casing and cause noise.

Posted on Dec 13, 2014

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  • Cadillac Master
  • 706 Answers

Yes, normally it does - sometimes (if you are lucky) it is only a loose belt which can be replaced and adjusted:

Posted on Dec 13, 2014

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Posted on Jan 02, 2017

emissionwiz
  • 76630 Answers

SOURCE: 2002 Cadillac Coolant sensor

The engine coolant temperature sensor is located on the driver side of the engine near the rear of the engine compartment

Posted on Oct 08, 2008

  • 507 Answers

SOURCE: 1990 cadillac deville need help water pump removal???

Water pump is located on the side with all the belts. Find the water pump pully and LOOSEN the bolts that keep the pully on the shaft of the water pump. Once they are LOOSEN remove the belt. Then you can remove the pully bolts the rest of the way. Pully MIGHT be stuck on there, a couple of taps should loosen it enough to where you can pop it off by hand. Now if I recall this vechile correctly, there MIGHT be another pully that will hinder you. It's just easier to take it off right away. It's right above the water pump. I BELIVE it's an idler pully. Dosn't do anything but to help keep the belt on it's correct path. There should be one bolt in the middle of this pully, undo the bolt and pully will pop off. Make sure you REMEMBER how it was on. So that you put it back on the right way. Then, there are 2 or 3 different sized bolts that keep the water pump on. Remove the bolts, one at a time, and make sure you REMEMBER where they went. If you remember now, it will save time guessing later. Ok, once you are sure that ALL the bolts are removed, you can try to pop off the pump. If it dosn't come by hand, use a screw driver to pry a corner up and then do the rest by hand. Once it's off, it's time to clean the motor side of the pump. See, on these cars it's not a complete pump like it use to be, it's a half pump. Meaning, when you look at one side you can see the fins that move the water. Anyways, when you are at the parts store, pick up some emery cloth. It's sort of like sand paper. Well, once the pump is off, use a razor blade and scrape off the silcone that's on the block. Then use the emery cloth to make is nice and clean getting all of it off. Once that's complete, put the new gasket on the pump and reinstall. Put all the bolts in BEFORE tighting them down. And when you do tighten them, do it by hand! Using an air tool will break the bolt or strip the threads in the alunimium block and then it has to go to a mechanic. Once all the bolts are tight fill up the reservor to check for leaks. Also go back over the bolts one more time and make sure all are tight. Doing this now, will save you headace later. Then put the rest of the things back on in the order you took them off. That's it exepct for bleeding the cooling system. I assume you know how to do this, if not, let me know.

Posted on Oct 20, 2008

  • 1 Answer

SOURCE: Where is the water pump located on the 2002 Cadillac Deville?

Water pump is located on rear of the engine. faceing the car it is between the radiator and the head. It is driven by a small belt. It is removed by removing a cover plate that has the radiator host and by pass hose connected to it. it takes a special tool to remove and install this item. it is available at most auto stores. approx. 2 hour job and somewhat a hard job . see the haynes manual for this car very detailed on how to change the waterpump. jim

Posted on Dec 25, 2008

honeymokey
  • 3113 Answers

SOURCE: 1994 cadillac deville 4.9 engine water pump

This can be a major operation. Go to public library and see if they have a chilton repair book on this car. The pump has about twenty bolts af various sizes and torx head bolts.

Posted on Apr 14, 2009

emissionwiz
  • 76630 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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Not much fun... so many beauty covers and such to take off first.

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HOW CAN YOU TELL IF YOU HAVE A BAD WATER PUMP IN 2001 DEVILLE


Hi there
A bad or worn water pump ,you will either boil the engine water system or loose water or coolant while driving and when you stopped or water [temp] light will come on when it gets down in the header tank,AND
you will hear the grinding noise as soon as you start the engine and the water pump pulley will move about when running and water will start leaking .
Let me know how you go.

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I have a 1998 cadillac deville ,how can I tell if


You have a Cadillac! You can assume that the thermostat is bad, the intake manifold is leaking and that you have a connecting rod or 2 going bad. Caddy engines do not last without constant maintainance.
You can spray water on the intake while the engine is running....if the noise goes away, you have a leak.
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1 Answer

Where is the water pump located on the 2002 Cadillac Deville?


Water pump is located on rear of the engine. faceing the car it is between the radiator and the head. It is driven by a small belt. It is removed by removing a cover plate that has the radiator host and by pass hose connected to it. it takes a special tool to remove and install this item. it is available at most auto stores. approx. 2 hour job and somewhat a hard job . see the haynes manual for this car very detailed on how to change the waterpump. jim

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1 Answer

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