Why won't car heat up unless moving? Barely defrosts windows, luke warm when i get in?
Why won't car heat up unless moving? Barely defrosts windows, luke warm when i get in? - 1
Added (1). 2011 ford explorer
Bad water pump.
Replace thermostat, staying open to much not allowing engine to heat up to proper temperature.
All cars warm up much faster on the move as the engine is working harder. However it's possible that the coolant thermostat in you car may be stuck partly open. This will allow coolant to flow around the radiator instead of the interior heater when the coolant is warming up. You can sometimes get a thermostat with a slightly higher temperature setting. This will improve heater performance. Ask a Ford service man for advice.
Sounds like a bad thermostat but if it's really cold out, sometimes it helps to cover half the radiator with a piece of cardboard because your cooling system just works too well at really low temps.
Before replacing the thermostat, I would check the blower motor. It sounds like the heat from the engine isn't getting into the passenger compartment. When the vehicle is moving, some airflow will happen even if the blower isn't working at all.
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