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my heater doesn't work in my 04 Chevy impala. My coolant levels are correct, and this still does not correct the problem. Could it possibly be the coil in the dash. If not what could problem be?
this is not an answer just an update. coolant is filled
Sounds like 1: the heater core was never fixed or 2: the coolant system wasn't filled and purged properly. if the car is loosing coolant and overheating i would check the heater core. if its low on coolant or has air in the coolant lines you wont get any heat either.
There are two hoses that go to the heater core, when the coolant is flushed an air pocket forms preventing hot coolant from reaching heater core while at idle. Happened with all our police impalas. Tell the dealer to fix it.
Low on coolant, Stuck open thermostat, Plugged heater core, Faulty blend door actuator,
Low coolant? Bad thermostat? Heater core air bound, restricted, or plugged? Water pump not circulating coolant? Temperature control switch not working?
How do i remove a heater core to a 1974 chevy impala?
It could be that you need coolant or it's low.
I just had this problem on my 2005 Impala. My fix was a new thermostat. I also had the symptom of the engine temp swinging from hot to cold.
If the coolant level is okay, I would suspect a restricted heater core. Try flushing the heater core.
It could be that your head gasket is blown.
The coolant leak is pretty cut and dry - you have a leak somewhere. The lukewarm heat (assuming you're referring to the car's heater) could be for a number of reasons. Insufficient coolant could be one of those. Your coolant could be burnt out. It could be a problem with one of your heater hoses. You could have a worn out heater core.