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I'm having issue with my air conditioning not working all the time. In a nutshell: when it works it still blows cold as ice, the idle is fine, and there is no difference between stopped and freeway speeds. When it doesn't work it blows warm air, kicks the idle up to about 1500 rpm and cruising at freeway speeds doesn't help. I haven't determined what makes it stop or start working.
Any ideas on what could be causing this?
I'm going to speculate here and say its something up with the compressor clutch.
I brought mine to a shop for an A/C diagnosis because my A/C died. Turned out that the compressor was dead and needed to be replaced. Symptoms were exactly like yours, only mine didn't work 100% of the time.
They were gonna charge me $1500 CAD for the service. Luckily, I got my hands on a Haynes manual.
But, I would say get it checked out by a trained professional before doing anything. Like I said, it could be the compressor that's no longer working.
yeah prolly the clutch going out. ive seen them kick on for a while, then stop and kick on and off every few seconds. listen to how yours is working with the hood open. if you hear it clicking on and off alot, its prolly clutch, or low on r134a
every 2-3 mins is normal. i was talking about every 5-10 seconds. and if its the compressor, get ready to shell out even more for the receiver/drier and the expansion valve/orifice tube and full flush of the system plus adding the right oil and refrigerent and amount. otherwise, the new compressor will be ruined too
I am having the same issue with my 2009 Civic. The air conditioning will work intermittently and more so when you first start a trip but as the trip goes on the A/C tends to just blow warm air. I have already tried changing the A/C clutch relay but the problem still exists. If anyone has any specific information on how what items to check it would be appreciated as I would prefer to tackle this on my own.
You need to check if the fan is cooling the condenser unit.
On all A/Cs there is a hot and a cold side. If the hot side is not being cooled, the cold side will not work. The more the hot side gets cooled, the colder the cold side can get. It is a bit more complicated than that but go and run the car with the A/C and see if the fan on the A/C condenser unit turns on with the compressor. If it does not, you have found the problem.
In your situation, the A/C may be able to cool until the hot side gets too hot and is unable to cool properly.