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2000 Deville DTS Water Pump Replacement

Tools, Parts and Supplies Required

Tools:

Northstar water pump Remover Tool

10mm 3/8" drive deep socket

10mm 3/8" drive socket

3/8" drive 1" extension

3/8" drive 3" extension

3/8" drive ratchet

½" drive breaker bar

Phillips head screwdriver

Large flathead screwdriver

Channel Lock Pliers

Parts:

New Water Pump with o-ring

Housing Cover Gasket (dealer item)

Supplies:

Dex-Cool Antifreeze

Cooling System Pellets (dealer item)

Overview

This is one of the easiest water pump replacements I have ever done. Below are the steps in the order I performed them.

Remove radiator plastic cover across top front of engine bay

Remove shield on water pump belt drive. Two 10mm nuts and one 10mm bolt.

Remove 10mm nut holding oil dipstick to water pump housing

Remove air filter and completely remove the air box. Set computer to the side safely. (you will be glad you did this step)

Use large screwdriver to move belt tensioner to release tension and remove belt from water pump pulley

Remove clamp from upper radiator hose and remove hose

Remove clamp from thermostat housing bypass hose (do not remove hose yet)

Loosen 4 10mm bolts with deep socket on water pump housing and let coolant drain

After coolant drains, remove 4 10mm bolts from water pump housing and remove housing.

Place special Water Pump removal tool on water pump cartridge and using ½" drive breaker bar turn clockwise until pump slips off housing.

Remove pump and remove o-ring inside the water pump housing

Clean area good with cloth rag or paper towel

Put clear grease on new o-ring and install in water pump housing

Install new water pump and using special tool and ½" breaker bar turn counter clockwise until new pump snaps into place

Remove old seal from water pump housing cover

Put clear grease on new seal and install in water pump housing cover making sure to insert the fitting inside the bypass hose by the thermostat

Install 4 10mm bolts in water pump housing cover and tighten

Re-install clamp on bypass hose and tighten.

Crush up cooling system pellets and pour inside upper radiator hose

Install upper radiator hose and clamp

Use large screwdriver to move belt tensioner to release tension and install belt on water pump pulley

Install water pump belt shield

Re-attach oil dipstick to water pump housing

Re-install airbox and computer

Mix coolant 50/50% with water

Start engine and fill with coolant watching closely so you do not over fill

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โˆ™ 2009-05-10 03:08:32
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Q: How do you change water pump on 4.6 northstar engine cadillac deville 1996?
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