Drain the cooling system.
Disconnect the battery ground.
Remove the air cleaner duct assembly.
Remove the upper radiator hose.
Remove the 3 thermostat housing attaching bolts.
Remove the thermostat housing. You may have to tap it loose with a plastic mallet or your hand.
Pull the thermostat from the intake manifold.
Do not use a sharp metal tool for scraping. Damage to the sealing surfaces could result and cause a leak.
Clean all mating surfaces thoroughly.
Make sure that the sealing ring is properly installed on the thermostat rim. Position the thermostat in the housing making sure that the air release valve is in the up (12 o'clock) position.
Coat the mating surfaces of the housing and engine with an adhesive type sealer. Position the new gasket on the thermostat and place the housing on the engine. Tighten the bolts to specification.
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Sunday, February 8th, 2009 AT 2:54 AM