SOURCE: heater only blows heat when accelerating
I think you might want to start with thermostat replacement and pressure flush the system and as other suggestion check levels when car is COLD!!!!!!
There are special cans of R-134A with dye in them for detecting leaks. Most leaks occur around the fittings near the compressor. Recharge the system with the leak detector can or R-134A. There are also cans of R-134A with an additive to stop leaks. I would use these products to either detect your leak or to stop it. Best of luck.
Greg
SOURCE: AC does not cool while idling,(blows warm air)
1'st check to see if the a/c belt need's to be tightened,if tight have your ac pressure checked.hope this helps,
SOURCE: AC blowing warm air
When they refilled the refrigerant did they put die in it to check for leaks, it sounds like there may be a leak.
SOURCE: 2001 Volvo S80 2.9L air conditioner stops cooling
This could be one of many problems so it's probably best checked by someone with the correct tools and knowledge.
That being said,
With your engine cold, open your hood and start your car. Check to see if your cooling fan is engaged, take note of its speed if it is. Then turn on your AC and listen for the compressor clutch to engage. once you hear it, check to see that your cooling fan is blowing, if it wasn't before. The fan should be on and in high speed whenever your AC is on, whether the engine is hot or not. If it is not, then the reason for losing cold air is that, due to the lack of being properly cooled, your freon pressure is getting too high and is causing the compressor to turn off.
If the fan is blowing as it should be, you may have a faulty compressor or the clutch on it may need to be shimmed.
Another culprit could be that your system is low on freon or the switch that senses the pressure is faulty.
And yet another culprit could be a faulty relay that is overheating and shorting out.
Sorry I couldn't give you a difinitive answer as to what the problem is, but without diagnosing it myself, this is the best I give you.
Good luck!!
761 views
Usually answered in minutes!
×