Question about 2004 Pontiac Grand Prix
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Posted on Jan 02, 2017
upper left side of engine, near throttle body
Posted on Jun 30, 2009
no, here is procedure according to autozone.com Fig. Exploded view of the water pump assembly mounting-3.8L engine
Negative battery cable. Drive belt Water pump pulley Power steering pump and move it aside Water pump
Water pump using a new gasket and torque the long bolts to 25 ft. lbs. (34 Nm) and the short bolts to 16 ft. lbs. (22 Nm) Water pump pulley and torque the bolts to 115 inch lbs. (13 Nm) Power steering pump and torque the bolts to 25 ft. lbs. (34 Nm) Drive belt Negative battery cable
Fig. Exploded view of the water pump assembly mounting-3.8L engine
Posted on Sep 29, 2010
at normal operating temp your car should run around 200 degrees. the thermostat is what maintains the temp of the engine by opening and closing alowing water to circulate and cool the engine or closed allowing the temp to build up. if the thermostat is stuck open then the coolent is never in the engine long enough to heat up and removes the heat faster than the engine is producing it. A new thermostat is around ten dollars and is simple to replace. Allow the engine to cool all the way down. Get a catch can, take the radiatior cap off and on the bottom right of the radiatior there is a valve, open the valve and drain about a gallon of coolent out. Once you have done this follow your top radiator hose from the radiator to the thermostate housing. There are two bolts one on each side 14 mm remove these bolts and the housing comes up. Remove the thermostate and put the new one in making sure the cone part is up, replace the housing and tighten the bolts. Top off the radiatior with coolent and start the engine leave the cap off and allow the engive to come up to operating temp. once it is warmed up you should be able to rev the engine alittle and see the coolent in the radiator being pulled thru by the water pump. top off the radiator and put the cap back on you are ready to go. after you have drove the car for a few days or ten miles or so let the engine cool down and check the coolent level to make sure its full. air bubbles can get trapped in the system.
Posted on Dec 18, 2010
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