Questions & Answers for: car heater blows hot moving

heater blows hot and cold When the car is up to normal temperature the heater will only blow out hot air when the revs are above 1500. If I stop at lights or in traffic the air cools down very quickly

heater blows fine when the car is moving but when you come to a stop or the car idles, the heat disappears and blows cold air. have checked anti-freeze and it is full. any ideas? anyone? Hya! You need

...car is sitting idle, all vents blow cold air, however as soon as I accelerate from a stop, the driver and 2 middle vents start blowing heat and the passenger vent will still blow cold air at the same ...

...Heater blowing cold air until I get on the interstate, then it works; however, when I stop at lights it starts blowing cold air again. The temperature gauge will be in the middle but the car will ...

heater blows cold air when car is stopped at red light but blows hot air after car is moving. Have you checked the coolant level? What you describe is exactly what happens if the coolant level is low.

heater only gets hot when truck is moving blows hot when moving, at stop light its goes cold has the thermostat been replaced, is the cooling system low on coolant?

...blow hot air until the vehicle is rolling. Once it comes to a stop it blows cold air until you move again. Check the coolant level.If you are low it will stop flowing thru the heater core at low

...heater only blows out cold air until I start moving then it blows warm to hot air . But when I stop at light or for whatever reason it blows out cold air , my blower seems to work ? One of two things ...

car is in motion. Ford service department has replaced the thermostat, heater core and water pump, but the heater is still blowing cool air when stopped at a red light or parked. Heater blows warm air

...air Heater works fine at Highway while vehicle is moving, if it stops cold air starts blowing. When you start moving again heater blows hot again. You have to bleed airfrom the system.take to the ...