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| Green 2003 Nissan Altima |
I have an 2003 Nissan Altima, recently the heater blows cool or cold air at idle position, is it true the temperature sensor
in the front of the car can cause this? Then, if possible is there
somewhere I can find the info on how the system works without buying a
manual at this time.
Answer: It is unlikely
that the ambient temp sensor would cause this problem. Check your
coolant level. Low coolant will cause inefficient operation of the
heating system because the heater core has little or nothing flowing through it so no heat gets transferred to the passenger compartment. Does your heater work normally at higher engine speeds?
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