A/C Stopped working this season. Any ideas?

[psiphreak]

So last year during the summer my A/C would work pretty well. Then by the end of the summer where I only needed it now and then, I noticed my car would sometimes pump out FREEZING cold air. I mean I was seeing the fog of the ice cold air flooding out of the car.

Now fast forward to today and I havent been able to get ANY cold air at all. Its just pushing the outside air in. No matter what I do. I checked fuses and charge and both are fine. Im just trying to think of other ideas before bringing it to the dealership.

Im all ears!

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[scarney1988]

Is the AC compressor clutch engaging?

If so, what are pressure with compressor engaged and engine running, MAX AC?

G-luck

[psiphreak]

You know I havent heard it engage actually. I know the lines dont have a leak. I checked for a leak and to see where the pressure was at and Im right where it needs to be. However, I havent heard the compressor engage at all. Any idea how much that would be to replace? Im just trying to get a ballpark here. This humidity is killing me

[Elbert Bass]

Originally Posted by psiphreak

You know I havent heard it engage actually. I know the lines dont have a leak. I checked for a leak and to see where the pressure was at and Im right where it needs to be. However, I havent heard the compressor engage at all. Any idea how much that would be to replace? Im just trying to get a ballpark here. This humidity is killing me

Before you start throwing expensive AC parts at an unknown problem let's find out what is wrong.

You say the pressure was "right where it was suppose to be".
What are you reading on the low and high side when you have the AC turned on? If your high and low pressure are in operating range then the clutch must be engaged.

Do you see the center section of the front of the pulley on the front of the AC compressor spinning with the belt?

Do the radiator fans run when you have the AC turned on and the blower fan running? (need to check this in the morning when you first start it so you know the water temp isn't tripping the fans)

It will also help if you fill out your profile so we will know what model/engine/year you're working on.

[westsideguy]

I agree with Elbert here. I'm not sure on the location of the A/C clutch in your engine, but it shouldn't be too hard to spot. I recommend getting a flashlight and with the KOER (Key on Engine Running) turn on the A/C and try to see if the outside of the compressor clutch is engaged. It will be located somewhere on the serpentine belt. If you do not see the clutch turning there is your problem. I haven't done any Subaru a/c clutches, but my ford had a similar problem and it turned out to be my CCRM (constant control relay module). I removed and replaced it with the a/c now working However that was all found out after I came to my conclusion doing voltage drops on the compressor clutch with my voltmeter. Good luck my friend.

[silver007]

I had a similar issue. 1 subie dealership said I needed to replace the entire ac system...1300 bucks. I took it to get fixxed at a dealership I trusted. Literally, they tightened the belt. That was all, saved me like 1000 dollars.