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How do you replace the water pump on a 1998 Pontiac Transport Montana?
Wiki User
∙ 12y ago
Disconnect Neg. Batt. cable. Drain coolant. Remove serpentine belt. Loosen water pump pulley. Use a prybar to hold the pulley in place while you do this. Remove small belt guard just above pump. Remove all bolts and nuts and remove the water pump from the engine. Clean all bolts threads and bolt holes. Remove all traces of gasket and sealent. Use lacquer thinner or acetone on engine mating surface. Make sure to line up the alignment marks at the top. Install bolts finger tight. Then tighten to 89in-lbs(NOT FT-LBS) 1/4 turn at a time as NOT TO OVER TIGHTEN. Sorry can't stress that enough. Re install pully, belt guard,etc. Refill and bleed cooling system. There are bleed screws. One above the water pump. One near the thermostat housing.
Wiki User
∙ 12y ago
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