I have a 2007 Malibu LTZ I have changed the thermostat and the water pump and I had heat but now I don't what could it be

I have a 2007 Malibu LTZ I have changed the thermostat and the water pump and I had heat but now I don't what could it be 2 Answers

I have a 2002 grand am gt, I have changed water pump, thermostat, flushed the heater core and radiator and I still have no heat and it overheated on me tonight. I can't figure out what is wrong, help? 8 Answers

Changed the thermostat twice, replaced the water pump, flushed the radiator and heater core. The car goes through coolant like no other. It now blows either hot or ice cold air no inbtwn. I can not fi...

I have a 97 grand Cherokee it's overheating and has no heat it's blowing cold air I replace the radiator water pump thermostat I don't know what else it could be t 1 Answer

My 97 Grand Cherokee is overheating and has no heat I don't know what

I have a 1997 Buick regal. The water pump went out. I changed the water pump and the thermostat but it still over heating...need help!! 1 Answer

IV changed the water pump and the thermostat but car still over heating... Plz help

I have a 1997 Ford Expedition and the heat just stopped working. All the lines are getting warm but theres no heat. I replaced the heater core and the thermostat. What could it be? 5 Answers

All the fans are blowing and it works in every position except heat. Could it be the water pump?