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2005 Outback 2.5 SE (UK spec)
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31 Posts
Discussion Starter #1
Hi all,

Seems after a few months of trouble free motoring, the warm weather is coming back and my AC does not work. Took to local specialist and they said the AC compressor / pulley was not working any more. They regassed the system to double check but made no difference.

My car is an 2005 Outback 2.5 SE

Current quote for new OEM part from subaru was a whopping £1500:gasp:

So the hunt for a 2nd hand part begins. Does anyone have a picture / technical image of what I'm looking for? Are these items common fit across other subaru models?

Any guidance would be appreciated. :29:
 

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03 H6 OBW & 06 WRX Sportwagon
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17,620 Posts
that doesn't seem like a good troubleshooting technique, find a different a/c 'expert'. There are over/under pressure sensors and perhaps other components that can be bad, preventing the a/c clutch from engaging. Some of those components could have been bypassed/tested by a competent a/c tech , at least I think so, without just charging it to test.

for the money, a second opinion wouldn't be a bad idea anyway.
 

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Premium Member
2001 VDC/SC One of a Kind
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14,318 Posts
I've had customers come to me with AC issues that other shops informed them the compressor was bad and needed replacement. I would find a leak, repair it, and all worked well. I would find an overcharged system, make it right and all worked fine. Pressure switched, bad relays, blown fuse, loose connection at the compressor.

Did he attempt to hot wire the compressor to see if it would run? If the switch is hot wired to 12V and the clutch clicks, its not the clutch. If you can spin the compressor shaft, its not the compressor.

Subaru AC compressors last a long time. They are tough units. Ask the mechanic to show you why its bad. I put 300k miles on one without any issues other than an occasional leak.
 

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Registered
2005 Outback 2.5 SE (UK spec)
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31 Posts
Discussion Starter #4
I've had customers come to me with AC issues that other shops informed them the compressor was bad and needed replacement. I would find a leak, repair it, and all worked well. I would find an overcharged system, make it right and all worked fine. Pressure switched, bad relays, blown fuse, loose connection at the compressor.

Did he attempt to hot wire the compressor to see if it would run? If the switch is hot wired to 12V and the clutch clicks, its not the clutch. If you can spin the compressor shaft, its not the compressor.

Subaru AC compressors last a long time. They are tough units. Ask the mechanic to show you why its bad. I put 300k miles on one without any issues other than an occasional leak.
Thanks cardoc, I think I need to really go find a specialist AC guru and I have one who comes out to my house that recently worked on my RX 8 solving all sorts of problems with minimal cost.

My garage in question was doing the usual service and I asked them to look at the AC due to it not functioning etc. seems they might not be as expert in AC as I had hoped.

Ill report back soon...

Do you have any technical picture of the parts or how to dismantle from a workshop manual?
 

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Premium Member
2001 VDC/SC One of a Kind
Joined
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14,318 Posts
Thanks cardoc, I think I need to really go find a specialist AC guru and I have one who comes out to my house that recently worked on my RX 8 solving all sorts of problems with minimal cost.

My garage in question was doing the usual service and I asked them to look at the AC due to it not functioning etc. seems they might not be as expert in AC as I had hoped.

Ill report back soon...

Do you have any technical picture of the parts or how to dismantle from a workshop manual?
The pic shows the AC circuit on an H4. H6 is identical with exception to the size of the AC. The AC system on majority manufactures are identical.

In the event of a leak down: Check/replace seals. Evacuate the system for a minumum of 30 minutes, then recharge it with the proper amount of refrigerant and oil for the car.

If the compressor doesn't come on: At the AC relay in the relay box under the hood, check for BATT on pin 5, ground on pin 3. (maybe its the other way around; been a long day). If you have Batt and no ground, the clutch is not grounding due to a loose connection at the compressor or a burned winding in the clutch. If you don't have Batt, check the fuse. If you have batt and ground, jump it and see if the clutch clicks. If it does, you'll need to move to controls or pressure switch.

Control would be checking for a ground on Pin 2 of the relay when the switch is turned on. Check the relay itself (EASY, swap the good horn relay for the AC and see what happens). And for the pressure switch, unplug it, its on top of the accumulator, and jump the pins and see if the compressor kicks on with the control switch or see if you have a ground at the relay pin 2.

Here's a video of how to read an AC manifold:
 

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01 outback-5sp-UEL-wrx wheels
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Cardoc, i have a feeling my clutch winding is going bad as my fuse keeps blowing. relay is good, wiring looks good. within 15 minutes it blew 3 fuses. i disconected the wire at the top of the compressor and it hasent blown since then. i have an 01 so obviously the compressor is old (idk if previous owner ever replaced it) would you think replacing JUST the clutch could stop this from happening?


I've had customers come to me with AC issues that other shops informed them the compressor was bad and needed replacement. I would find a leak, repair it, and all worked well. I would find an overcharged system, make it right and all worked fine. Pressure switched, bad relays, blown fuse, loose connection at the compressor.

Did he attempt to hot wire the compressor to see if it would run? If the switch is hot wired to 12V and the clutch clicks, its not the clutch. If you can spin the compressor shaft, its not the compressor.

Subaru AC compressors last a long time. They are tough units. Ask the mechanic to show you why its bad. I put 300k miles on one without any issues other than an occasional leak.
 

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03 H6 OBW & 06 WRX Sportwagon
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17,620 Posts
very old thread

find a newer one or start a thread
 
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