What's causing my 2001lincoln towncar to
run hot only when I run A/C unit.... I have
replaced temperature sensor/switch but still
doing it need help...
AC pump loads the engine, and causes the old cooling system to react by overheating. Check your entire cooling system out from water pump to radiator, to T-stat... and all hoses. you locate the weak components. Even without the AC ON, watch the closely the temperature is probably still to high. Regards
Also, check for blocked air flow in front of the radiator. Leaves and stuff can accumulate in that area and block the flow of air.
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