TURN ON THE HEATER THE TEMPERATURE STARTS TO GO UP?
2000 Pontiac Grand Prix
March, 6, 2012 AT 2:16 PM
I have changed the thermostat and heating sensor on my 2000 3.1 gran prix. Both hoses are hot when I have the car running. I turn on the AC and the fan comes on, but when I turn on the heater the temperature starts to go up.
changed thermostat, heating sensor and replaced the antifreeze. AC works but when I turn on the heater it starts to overheat. AC fan turns on and both hoses are hot.