My engine overheats when the air conditioner is running. When the air conditioner is off the thermostat returns to normal... I have replace the coolant, thermostat, radiator cap, radiator heat sensor, all hoses and installed a new radiator. Could my problem be a bad water pump? The timing and head gasket are fine...
Engine Overheating on 1998 BMW 740i
by Pollard in Victorville, CA on July 18, 2010
ANSWER by Chow on July 20, 2010
If the coolant has been bled properly, no leaks present, check viscous fan operation, thermofan operation, thermoswitch operation, remove and visually check waterpump.
on a 2001 bmw 740 what is the average mileage until engine failure?
Please help. i replaced water pump,thermostat,some hoses and where you put antifreeze in that container (sorry dont know what is called) but every morning i need to add water. what could be the pro...
i just replaced the alternator... and i was turning my ac to make sure it turn on. so when i tried the heating system, it was blowing cold air. can someone tell me if there was a sensor or somethin...