Question about 2007 Pontiac Grand Prix
Posted by Anonymous on
Clogged heater core get a coolant flush tee from any auto parts store install in heater hose and flush it for an hour... hopefully your heater core isn't leaking
Posted on Feb 26, 2015
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Posted on Jan 02, 2017
SOURCE: Have a heat problem...I had
Do you have a heater control valve.
.the damper door may be closed on it not allowing hot water to the heater core.
You can go to my tips "heat troubleshooting" for more info.
Posted on Feb 08, 2011
SOURCE: I replaced the heater core.
some cars like cavalier and sunbirds grand am
were the rad is lower then the motor or heater core
needs to be vacumed fill to get all the air out
otherwise very little heat in heater system even if engine temp
Posted on Mar 31, 2011
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