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Replaced waterpump and thermostat
1999 Pontiac Grand Am

Replaced waterpump and thermostat

(1999 Pontiac Grand Am)
car overheats while driving but not while idling
1 answer & 0 comments
Popular Answer
on May 14, 2011
Have you purged the air pockets out of your cooling system following the water pump and thermostat being replaced? Air pockets can boil over the coolant just like an overheating situation.

Other than that check for positive air flow through the front - radiator and consdenser free of debris.
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General Diagnosis
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on May 14, 2011
Have you purged the air pockets out of your cooling system following the water pump and thermostat being replaced? Air pockets can boil over the coolant just like an overheating situation.

Other than that check for positive air flow through the front - radiator and consdenser free of debris.
Sign in to reply

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