is it possible I might have a blockage in my heater core,cause there's no heat blowing from the fan.
Chevrolet Q&AAsk Your Question
2005 Chevrolet Malibu Question: I replaced my thermostat, my water pump, my ,and my engine still overheats.
Answer #1pushrod August 22, 2013, 18:47Master
Overheating and no hot air from heater are both tell tale signs of LOW COOLANT.
Replyjojox, August 22, 2013, 18:52Rookie
it has plenty of coolant, what else might be the problem.. I really don't know, its got the right thermostat, and the dex tro coolant.
Replypushrod, August 22, 2013, 18:58Master
IF, IF it is FULL of coolant and radiator fan(s) are working, it is possible a head gasket may be defective! Repair shop can do a combustion leak test to confirm or refute.
ReplyTbone1980, August 22, 2013, 19:59Journeyman
also could be faulty water pump,Have seen a few cases where the impeller comes disconnected from the shaft..if compression is ok as pushrod stated need to confirm that the pump is circulating the coolant propperly
Answer #2csubak30 August 22, 2013, 22:08Master
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!)
Answer #3Greg's Orange Auto (13255 Answers) , Orange, CA - (714) 361-9386globalhelper August 23, 2013, 06:07Master
POSS BLOCKAGE IN RADIATOR OR COOLING FANS ARE NOT WORKING PROPERLY