Why does my air conditioner get cold when I idle?
Basically, the AC high pressure hose is kind of like a turbo for your AC – it supplies more pressure when you’re idling and less pressure when the AC motor is being driven faster while you accelerate.
Why does my car AC blow cold air then blow warm air?
But that cold air turns warm fairly soon after because the high side pressures build to the point that the high pressure switch shuts off the compressor clutch. Once pressures equalize, the high pressure switch allows the compressor to start up again. The cycle repeats over and over, providing a short period of cold air, followed by warm air.
Why does my air only get cold while I drive?
My car has an automatic transmission. Hi there. One of the most common causes of the symptom you’re describing is when you have a bad or failing AC high pressure hose.
What to do when your car AC blows warm at idle?
GM and others use either a three-relay set up to run the two fans at low speed for normal driving and high speed when the AC is on or the low speed can adequately cool the radiator. Other carmakers use a solid-state speed relay that varies the speed of the fans based on engine cooling and AC needs.
Why does the AC blow warm air while idling?
During idling however, the AC starts blowing warm air and it gets warmer and warmer the longer the car is not in motion. It cools the car again when I drive. The system has been charged.
Can a car air conditioner blow cold air?
ac will blow cold for awhile and then the compressor shuts down and blows warm air. I can turn the ac button off for a few minutes and then turn it … read more Air conditioning works fine on startup, very cold air. When vehicle is driven for a few miles, air conditioning stops blowing cold air, ie compressor clutch disengaged.
What to do when your AC blows cold air?
Some college and advance… ac will blow cold for awhile and then the compressor shuts down and blows warm air. I can turn the ac button off for a few minutes and then turn it … read more Air conditioning works fine on startup, very cold air.
Why does my GMC air conditioner stop working?
For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.
When does the AC get cold in a car?
AC is cold only when the engine is revving above certain rpm. When at a stop, the air is warm…but if I put it into neutral and rev the engine to, let’s say, 2000+ rpm, AC gets colder…or when Im driving, obviously. I know everyone is gonna say something about the condensor fan but would it be the fan given above circumstances? Buying Guides Deals
Basically, the AC high pressure hose is kind of like a turbo for your AC – it supplies more pressure when you’re idling and less pressure when the AC motor is being driven faster while you accelerate.
AC is cold only when the engine is revving above certain rpm. When at a stop, the air is warm…but if I put it into neutral and rev the engine to, let’s say, 2000+ rpm, AC gets colder…or when Im driving, obviously. I know everyone is gonna say something about the condensor fan but would it be the fan given above circumstances? Buying Guides Deals
GM and others use either a three-relay set up to run the two fans at low speed for normal driving and high speed when the AC is on or the low speed can adequately cool the radiator. Other carmakers use a solid-state speed relay that varies the speed of the fans based on engine cooling and AC needs.
Is the idle bad with the a / C on?
With the a/c on, the idle is terrible. Way worse than it should be. Enough to rattle the things in my glove box. With the a/c off, its actually okay. Also, it is at its worst in drive or reverse. Anything else it isn’t that bad. So, in drive with a/c on = the worst. Drive/reverse, no a/c = not too bad.