Question about 1991 Cadillac DeVille

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1990 cadillac deville need help water pump removal???

How do i remove the water pump in this vehical

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  • Duffslincoln Oct 20, 2008

    thanks alot il see what i can do

  • Anonymous Apr 18, 2009

    i need to change my water pump on my 1990 deville lac how do i do this

  • Anonymous Mar 13, 2014

    1996 cadillac eldorado cracked water pump housingr removal

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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

  • Graham Edwards
    Graham Edwards Jan 31, 2014

    I have removed the water pump and inlet housing and need a new inlet housing have you got any suggestions on where I mightget one as I live in Chile and it is difficult to try and source the item from here.

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  • I changed the water pump on the 4.5, 1990 DeVilll , twice, both times to make things easer, I loosen all motor mounts on the tranny end and removed the nuts on the mount at the pump end, and jacked the engine up about 6 inches, be sure to put a 2x4 across the oil pan and tranny, this puts the pump where you can get to the bolts., there is a gasket behind the plate the pump mounts on, when everthing is installed,,,sloooowly lower the engine down with a large enought screw driver line up the mount bolts... I'm planning to do this again on a 89 devill, have a Blessed day...pep

Posted on Oct 21, 2008

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1 Answer

Don't know how to remove water pump


for cadillac deville to remove water pump you need a special go to an auto part and rented all you do is turn it and will came out use a 1/2" ratchet

Sep 04, 2011 | 1998 Cadillac DeVille

Tip

How do I replace the water pump on my Cadillac Deville?


Hi.

Here the instructions.

  • Take off the plastic cover located near the top of the radiator if present.
  • Remove the protective shield located on top of the belt pulling the water pump. You will need to undo two 10mm nuts and one 10mm bolt.
  • Undo the 10mm nut that holds water pump housing togeter with the oil dipstick.
  • Take off the air intake assembly.
  • Move the PCM computer to one side, ensure that the module is safely placed.
  • Release the belt tensioner using a big flat screwdriver.
  • Remove the serpentine belt from the water pump pulley
  • Remove the upper radiator hose. This is held by a metal clamp. Use plyers to remove the clamp.
  • Remove also the clamp from the thermostat housing bypass hose, without removing the hose (you have to bleed coolant first).
  • Unscrew the four 10mm bolts that hold the water pump housing and letcoolant drain from water pump plug. At this point you can also removethe lower radiator hose to drain faster.
  • After coolant drains remove the water pump housing.
  • At this point you have to use a special Water Pump removal tool onwater pump cand turn clockwise until the pump is sliding off thehousing.
  • Remove the pump and the o-ring located inside the water pump housing.
  • Clean and grease the area, put a new o-ring and install back water pump housing
  • Install the new water pump using the special tool and following operations in reverse order.

You may need to use sealant tabs from a Cadillac or GM dealer. Here is what you need.
Better going to your local dealer to get the best product for yourCadillac. You will also need a 3/8'' ratchet, socket and extensions

Youmay also need to replace the housing cover gasket. You will need toreplace the O-Ring, that usually comes with the new pump.
When installing new pump you must also ensure that the new pump is aligned correctly,one of the tabs on the pump housing is different and will lock up the pump, so it must bealigned properly while installing.

Here pump:2000 Cadillac DeVille Water Pump

Here the special tool: Water Pump Removal and Installation Impact Socket

on Mar 16, 2010 | 2000 Cadillac DeVille

1 Answer

Need a diagram showing exactly where the water pump is located on a 97 cadillac deville northstar


zjlimited_1587.jpg

Fig. Water pump assembly-4.6L Northstar engine (click image for zoom)



zjlimited_1588.jpg



Fig. Remove the water pump belt shield


zjlimited_1589.jpg


Fig. Remove the water pump adjuster pulley retaining bolt and


zjlimited_1590.jpg


Fig. Remove the water pump retaining bolts




Hope helps.


Jul 16, 2011 | 1997 Cadillac DeVille

1 Answer

How do i change the water pump belt on a 2001 Cadillac Deville .


2001 Cadillac Deville 4.6L SFI DOHC 8cyl Removal & Installation procedure...

1. Before servicing the vehicle, refer to the Precautions section.
2. Drain the coolant.
3. Remove or disconnect the following:
Negative battery cable
Upper fill panel, if equipped
AIR injection control valve, if equipped
Air cleaner
Oil level indicator tube nut, if necessary
Water pump belt cover
Water pump drive belt
Lower radiator hose
Thermostat bypass hose from the coolant inlet housing
Water pump cover

4. Remove the water pump by rotating it clockwise using special Tool J 38816-1A (water pump remover/installer).

To install:

1. Install the water pump with a new O-ring, by turning it counterclockwise using the special tool, until it stops. Torque the water pump to 73 ft. lbs. (100 Nm).

  1. zjlimited_842.jpg

Fig. To ensure proper operation, be sure to install a new O-ring (click for zoom)

2. Install or connect the following:
Water pump cover. Torque the bolts to 89 inch lbs. (10 Nm).
Lower radiator hose
Thermostat bypass hose to the coolant inlet housing
Water pump drive belt
Water pump belt cover
Oil level indicator tube nut, if necessary
Air cleaner
AIR injection control valve, if equipped
Upper fill panel, if equipped
Negative battery cable

3. Refill and bleed the cooling system.
4. Run the engine and check for leaks.


Hope this helps (remember to rate this comments)

Mar 10, 2011 | 2001 Cadillac DeVille

1 Answer

How do i change the water pump belt on my 96 32v v8 cadillac


Hello there:

5f07b70.jpg
Remove the water pump belt shield
3f40e10.jpg
Loosen the water pump belt adjuster and . remove the belt from around the water pump

Sep 29, 2010 | 1996 Cadillac DeVille

1 Answer

My new water pump keeps leaking and i have tried tightening in sequence as manual says but it continues to leak. second gasket tried 1990 cad deville 4.5L is there bolt tightening sequence other than...


Are you using a remanufactured pump? I had this problem with one, Had it on and off 3 times. Switched to a new pump, No more problems. I've used new pumps on these ever since. When they are rebuilt the reman company doesn't check the steel plate for flatness. If the last person who removed it bent it, It will never seal up. Try a new pump instead.

May 15, 2010 | 1993 Cadillac DeVille

1 Answer

How to remove the water pump pully on the 4.6 northstar engine on a 1997 cadillac deville


you don't, the water pump has pulley built in. (it's located on the driver's side in the rear of the engine in case you mis-understand that it's on the front of the engine )
there's a special tool to remove and install the water pump.
if you have the tool the the job is very easy

Mar 07, 2010 | 1997 Cadillac DeVille

1 Answer

Problem with starting a 1990 Cadillac DeVille 4.5L V8


sounds like a faulty fuel pump sometime they still work but not enough pressure because the pump is going bad, you need a new pump

May 31, 2009 | 1990 Cadillac Deville

1 Answer

Trying to locate water pump on my 2000 caddy deville


Its on the same side of the engine as the transmission, driven by the belt up top. It requires a special socket to remove the pump from the housing.(also, the pump turns clockwise to remove!)

Dec 23, 2008 | 2000 Cadillac DeVille

2 Answers

1990 cadillac deville need help water pump removal???


You need a special water pump tool. you can rent one from Auto Zone. The water pump housing is the bottom radiator hose on the right side of the engine. remove the hose and the outer-caseing, the waterpump is now slightly visable. Use a .5 inch rachet with the Special tool and turn clockwise.

Oct 19, 2008 | 1991 Cadillac DeVille

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