Thursday, October 6, 2011

Why doesn't my car heater work?

When the car is idling it blows warm air. When I start driving it blows cold air. I changed the thermostat and coolant. I also bled the air out of the system. It still doesn't work. Why?
Why doesn't my car heater work?
lt is a vapor lock. Fill radiator, leave cap off continue running car about 15 -30 minutes until thermostat opens and continue to give water. That should get rid of your vapor lock. Or you could have gotten a bad thermostat which does happen here and there.
Why doesn't my car heater work?
It is also possible that your heater core is clogged up. You may need to have it professionally cleaned out. Then, stop using the %26quot;GREEN%26quot; STUFF. This is usually what causes the problem over time.