AC issues continued...

[TwistedCU]

Well the system is completely dead again. I am told by some that it is likely the evaporator. I don't knoiw how much they cost but the job is rather labor intensive - complete dash removal, etc.

I decided to disconnect the AC to avoid the annoying short-cycling while using the defroster this winter. I tried the under the hood fuse, the under the hood relay (both removed). The compresser clutch did not engage when I turned the AC/defroster on, but the idle still increased.

After fooling around for a while I figured out the best way to disconnect the AC completely is to unplug the connector on the tube just behind the top of the compressor. All relays/fuses can remain in place. The idle stays normal and the compressor clutch does not engage.

I thought I would post this because there was someone asking about the best way to disconnect the AC recently. It also might be a seasonal thing to do to save a few MPG and wear and tear on the AC system through winter months. I may plug it in once a month and run it a while as I've been told that long periods of non-use can be bad for the compressor.

 

[graewulf]

You are right.. long periods of not runnign is one reason they cycle the AC with the defroster on. Besides drying the air to defrost faster, it keeps the pump lubed.

 

[TwistedCU]

I thought so. As a matter of fact, I think you were the one who posted that.

In the winter with the low humidity I wouldn't think that drying the air would make any difference. I should have it all squared away before the humidity returns though.

 

[graewulf]

RE: OK, a new upgrade

on a rainy/snowy day the dehumidifying of the air definitely helps. I'd leave it disconnected till you get it repaired though.