Q: Engine will not build heat. New therm water pump clutch fan no difference

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Engine will not build heat temp gauge will only go to the beginning of the white line just above cold and heat Is very minimal put New thermostat water pump clutch fan nothing made a difference

My car has 150000 miles.
My car has an automatic transmission.

You will need to verify the actual engine temperature to see if the gauge is reading accurately. If the engine is not getting warm enough then the thermostat is not closing all the way or the ambient air temperature is too cold and not letting the engine get to operating temperature.

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