Dello514

my acura tl 2006 the heater blows cold air when i start the car i wait like 5-7 min after i drive but when the car is stopped there's cold air but when i drive it then it start to blow hot air.... i changed my thermostat and i still have the problem

Chojun

Welcome - this is the 2G forum - you need to post this in the 3G forum.

Ron A

Welcome to the forums.

This thread has been moved to the model specific forum for better response.

horseshoez

iTrader: (2)

Sounds like your car may be low on coolant.

Dello514

stevemk07

Burp the coolany system.... Take the cap off... Top off with the right coolant... Start engine.... Turn temp to high, fan speed low, let fans come on twice.... Shut off engine... Top up if necessary....

Leave cap on loosely with rags around cap to absorb overflow....

Ifthisdoesnt work you may need other reapairs... Themostat stuck open perhaps.... (New thermostat needed)

Jackass

- Burp coolant
- Check the HCV (Heater Control Valve) for movement and leaks

Dello514

stevemk07

You quoted how to do it

Nytetime6

Its the heater control valve. I had the same problem. Car would blow heat while moving and if I was stopped at a stop sign or at a red light then it would blow cold air. One day the heater control valve broke spilling coolant everywhere. I had it towed to the dealer and they said it was the heater control valve that broke. They replaced that and now the heater works like it should.