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Why does the heat blow cold while idling and warm when driving?
Wiki User
∙ 10y ago
Poor circulation probably due to a restricted (plugged up) heater core.
Wiki User
∙ 10y ago
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Why does your heater blow cold air while idling but blows hot air while driving?
Low coolant, failed thermostat, partially plugged heater core...............
Why does the AC only blows cold while driving?
Well it should blow cold while driving and stopped. You probably need to get your AC recharged. Hope I helped!!
Why does the heater blow heat while driving and cold at idle?
you need to replace your heater core
2001 Chevy cavalier no heat turns cold while driving idling its hot why?
I'd check the coolant level first, then the thermostat.
Why does the heater in my 1995 Ford Windstar only blow hot air while idling It blows cold air while driving. Problem seems to have started overnight. What's up?
That's a toughy... Water pump maybe(?)If not, be sure to see "Related Questions" below for more diagnosing/trouble-shooting/fixing ideas and information.
Why would the heater blow warmhot air while driving but cold air when sitting still?
Possibly defective thermostat. It sounds like it is opening up a bit with increased pressure caused by higher engine revs - when idling, the pressure decreases and the thermostat valve closes. Just a thought, anyway.
Why would a car only blow cold air when driving?
Only blows cold air with the a/c on while driving, your cooling fan or fan clutch is bad depending on the year, make and model.......... Only blows cold air with the heater on while driving, you will have a bad or broken internal a/c - heater control door.....
Why does your 1998 Sebring blow cold air while idling and hot air while moving?
This is often caused by air being trapped in the cooling system. Get a qualified mechanic to drain, flush and refill the radiator/cooling system.
Why does your ford windstar 2003 blow hot air when idling and cold air when driving?
Could be a number of reasons for this condition. I would check the coolant level. A low coolant level could cause your heater to blow cold air when the engine is warm. Is the engine warm? If the engine is fluctuating temp it could be a faulty thermostat. Hope this helps.
Why does my Lincoln LS blow cold air when idling?
Yuo have a bad aux water pump about $150 at the dealer :) Danny K
Why does the heater on a 2000 Dodge Grand Caravan blow cold while driving down the freeway and then when it idles for a few minutes will finally blow hot air?
It is either your water pump or your thermostat
Why does your vehicle AC blow cold while driving and warm while idle?
Depending on the year, make and model check the cooling fans or fan clutch for proper operation...........
