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AC Compressor Noise

1641 Views 10 Replies 3 Participants Last post by  Ranger
Hi all,

Just a quick question/survey for all 2001/2002 owners. Can you hear your AC compressor kick in when you turn the AC on? On all my previous cars(not Caddy) I always could. But on my previous 02 Base Deville, it was inaudible even when the AC was maxed out and I had my head under the hood listening. I know it was working as cold air was blowing in the car. My present '01 DTS is the same way. Because I bought it in the winter I was unsure about the AC working due to the quiet compressor. It is still cool up here in Canada, but I am concerned that I will get stuck without AC this summer and wanted to get a head start on any repairs that may be needed. Is there any sort of visual check I can make on the unit to ensure it is working?

Thanks in advance.
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Dave, I think that is closer to 35 degrees. It certainly will work under 60.

Rdf, watch the compressor clutch and have someone turn the A/C on. You should see it engage. If it is too cold for that then go to defrost.
I'm gonna have to research this. I know I read in earlier manuals I had that the compressor ran in auto down to 35-40 degrees F.

EDIT: According to the '03 FSM the compressor will run at 38 degrees F or above.
Cold on the passengers side and warm on the drivers? It needs a refrigerant top off.
No, that is a common code for the rear temperature actuator. It just means that it is not in the commanded position. It has nothing to do with the A/C. A mechanic at my dealer told me that it takes very little to set that code so it may not even be out of sync enough for you to notice. The again you may never use the rear heater control.
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