Air from my heater doesn't blow warm air when sitting.
I have a 2003 Grand Marquis. Air from my heater doesn't blow warm air when sitting but when I'm driving the air is warm. What is the fix?
The most common problem is low coolant and or air in the system, then a partially open thermostat. HTH
flush your heater core, if that don't work time for a water pump.
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