1995 Pont Grand Am
repairs made = water pump, intake gaskets, thermostat, coolant tempp
sensor, coolant flush.
comments = Dear KK: This thing keeps overheating at idle well over the
220 mark. What else could it be there is no leak form the block or
steam out the exhaust. Please help!
KK:
A couple of things to look at. You need to see exactly what the coolant temp. is by using a
scanner to make sure the gauge is accurate. The low speed cooling fan wont come on
until 226 degrees, so you are not overheating until after that. Make sure the fan does
come on at 226 f. Another thing to look for is bubbles in the radiator. That would be a sign
of a blown headgasket. Those were known to leak externally, or blow internally at the
lower portion of the rear head all the way on the pass. side; as viewed from underneath. A
restricted radiator can also cause this. Sometimes the radiator will have 'cool' spots in it as
compared to the rest of the radiator. Best way to check is with a laser temp. gun, but can
do with you hands as long as you are carefull not to get near fan blades. Let me know
what find if you need more help.
Back
repairs made = water pump, intake gaskets, thermostat, coolant tempp
sensor, coolant flush.
comments = Dear KK: This thing keeps overheating at idle well over the
220 mark. What else could it be there is no leak form the block or
steam out the exhaust. Please help!
KK:
A couple of things to look at. You need to see exactly what the coolant temp. is by using a
scanner to make sure the gauge is accurate. The low speed cooling fan wont come on
until 226 degrees, so you are not overheating until after that. Make sure the fan does
come on at 226 f. Another thing to look for is bubbles in the radiator. That would be a sign
of a blown headgasket. Those were known to leak externally, or blow internally at the
lower portion of the rear head all the way on the pass. side; as viewed from underneath. A
restricted radiator can also cause this. Sometimes the radiator will have 'cool' spots in it as
compared to the rest of the radiator. Best way to check is with a laser temp. gun, but can
do with you hands as long as you are carefull not to get near fan blades. Let me know
what find if you need more help.
Back
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