2005 Chevrolet Malibu Q&A
2005 Chevrolet Malibu Question: I replaced my thermostat, my water pump, my ,and my engine still overheats.
Overheating and no hot air from heater are both tell tale signs of LOW COOLANT. - pushrod
Feel the the inlet and outlet pipes to the heater core. If the inlet is a lot warmer than the outlet, the heater core could be plugged. (Careful not to burn yourself!) - csubak30
POSS BLOCKAGE IN RADIATOR OR COOLING FANS ARE NOT WORKING PROPERLY - globalhelper