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Old 02-18-2010, 05:36 PM   #1
scottjua
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Default HELP: Changed the A/C and PS belts and now the A/C doesn't work

I recently had the timing belt and water pump replaced, along with some other maintenance, but when I got the car back there was a horrid squeak coming from what seemed to be the A/C belt or pulley.

So I took off the A/C belt to make sure that was it, and sure enough I drove around for a few days without to confirm, and no more noises.

So I ordered the belts from Subarugenuineparts.com and got the duralast idler pulley from autozone and changed them out today.

Now, the squeaks are all gone, with new belts and the pulley, but the A/C compressor won't kick on and blow cold air.

Is this something I did/didn't do, or could that squeak have been the A/C clutch going and now it's gone? I THINK the belt is tight enough, but could a belt that's slightly too loose prevent it from working???

What can I do to check??? Help??
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Old 02-18-2010, 05:58 PM   #2
Mulder
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When was the last time the AC actually worked?
The usual cause for the compressor to not run is that the system is low on refrigerant or empty, typically due to a leak. The system should be checked with gauges to see if that is indeed the case.
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Old 02-18-2010, 06:08 PM   #3
scottjua
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Last time it worked was just before I took the old belt off... so a week ago...
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Old 02-18-2010, 08:27 PM   #4
munkis
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There is nothing you could have done unless you unplugged the AC compressor or knocked an A/C line off and you would have noticed refridgerant spraying everywhere.
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Old 02-20-2010, 03:18 AM   #5
scottjua
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could trying to defrost the windshield without the belt for the AC have drained it somehow???
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Old 02-20-2010, 10:10 PM   #6
Rally Monkey
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You would have a leak to have lost the refridgerant. The ac would have just not kicked in if the belt was off.
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Old 02-20-2010, 10:16 PM   #7
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If you are out of refridgerant, Look at your high presure side hose. I lost my ac and this was the problem. Bolted in the new hose and took it to a nearby reapair shop and had it filled with refridgerant. Cold as ice for 2 years now.
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Old 02-25-2010, 03:54 AM   #8
scottjua
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Sorry for the dumb question... but where is that?
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Old 02-26-2010, 10:30 PM   #9
Rally Monkey
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The High side hose runs from the top of the compessor to the top of the condenser.
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Old 02-27-2010, 12:22 AM   #10
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Exactly what i would do: Check your A/C fuse, it may have popped. if its good, check your connections, if they all seem good take it to your nearest MAC certified shop. do you have any aftermarket parts on it? when i put my oversized top mount on, i rubbed a hole in my low pressure line. just curious, ive also seen Shreader valve issues with a few subarus. but take it to a shop. i could tell you how to find out yourself, but you would need to invest in a 3500$ AC machine, and a MAC class haha.
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Old 02-27-2010, 03:16 AM   #11
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yea double check your connections and make sure u didnt unplug by accident..
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Old 03-02-2010, 08:03 PM   #12
scottjua
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Thanks guys... checked the fuse... good to go... checked connections... well everything I can see or think would have come loose, and nothing seems out of the ordinary. I will take it to Cobb tomorrow and have it tested for a leak.

Thanks!

I'll update once I know something just in case it helps someone else.
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Old 04-08-2010, 08:05 PM   #13
SueBaroo
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Quote:
Originally Posted by scottjua View Post
Thanks guys... checked the fuse... good to go... checked connections... well everything I can see or think would have come loose, and nothing seems out of the ordinary. I will take it to Cobb tomorrow and have it tested for a leak.

Thanks!

I'll update once I know something just in case it helps someone else.
So anything happen?
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