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Why does your heater blow cold air while idling but blows hot air while driving?
Wiki User
∙ 14y ago
Low coolant, failed thermostat, partially plugged heater core...............
Wiki User
∙ 14y ago
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1989 Grand Marquis AC blows ice cold idling but blows hot while driving but blows cold when decelerating?
it could be the heater core and ac housing unit that allows hot air to be mixed with the cold air or it could just cancel out the cold due to the motion of the car
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 the heat blow cold while idling and warm when driving?
Poor circulation probably due to a restricted (plugged up) heater core.
How much fuel does a SUV waste idling?
Effectively all the fuel that it burns while idling. You are getting 0 miles per gallon while idling.
When my car goes on the highway the heater doesn't work very goodwhy is this?
If it blows warm while idling and cool as you accelerate down the road, the coolant is low and or doesn't have proper mixture for your avg. temperature.
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 your Uplander throw heat while driving and cold air when idling?
Poor circulation through the heater core. Probably a semi-plugged heater core or a faulty thermostat (assuming the coolant level is full).
What causes my ranger to blow warm air while idling and only blows cold air when revved up?
unit could be low of refridgent,or valve for heater not closing complety There can be other problems, but these twowould be the ones i would start with.
Why does 2003 Toyota Sienna stall when idling?
2001 sienna stall while just stop while driving. electric just cut out power, then switch can operated but idling roughling
Why does your Dodge Ram 1500 blow cold air when sitting still and blows hot air while driving?
thermostat probably damaged or stuck....and worse case scenario....your heater core is going out.
What part do you need I have very little heat while idling but nice warm heat while driving i have a BMW 525i car?
BMW have an auxilery water pump that circulate coolent into the heater core at low engine speeds check the operation of this pump and solinoids.
Who is responsible when engine blows while test driving a used car from a dealership?
You.
