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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