The sensor can cause the gauge not to read, but if the engine is warming up, you should get heat. Make sure there are no air block in the cooling system by bleeding it. Next, start the engine, let it warm up, and feel both heater core hoses. Both should get hot. If they are, check the blend door. It can be stuck and not allowing the heat to get into the vehicle. If only one heater core hose is hot and the other slughtly warm or cold, flush the heater core.
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Wednesday, February 9th, 2011 AT 2:22 AM