Water Pumps
Pontiac Sunfire
Chevy Trailblazer

How do you replace the water pump on a 1998 Pontiac Sunfire GT 2.2L?


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2015-07-15 19:55:26
2015-07-15 19:55:26


Disconnect the negative battery cable. 2.

Properly drain the cooling system into an approved container. 3.

Remove all accessory drive belts or the serpentine belt. 4.

Remove the alternator and bracket. 5.

Unscrew the water pump pulley mounting bolts and then pull off the pulley. 6.

Unfasten the mounting bolts, then remove the water pump. 7.

Using a putty knife, clean the gasket mounting surfaces. To install:


Place a 1/8 in. (3mm) wide bead of RTV sealant on the water pump sealing surface or install a new gasket, on models so equipped. Install the pump and tighten the retaining bolts to 18 ft. lbs. (25 Nm). 9.

Install the water pump pulley, then tighten the mounting bolts to 22 ft. lbs. (30 Nm). 10.

install the alternator and bracket. 11.

Install the drive belts or serpentine belt, as applicable. 12.

Fill the cooling system to the proper level. 13.

Connect the negative battery cable, then start the engine and check for leaks.


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