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Old 07-20-2009, 07:36 PM   #1
TixArmy
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"Desert Sand on White"

Exclamation Help Needed - AC issues

OK - so that was one LONG...and HOT... drive from Scottsdale back to Surprise...

Here is the issue -

*Belt squeak sound from engine when AC is turned on.
*Inspection shows AC Compressor coming to a halt when squeak starts and then spinning up when squeak goes away.
*Seems to only happen when the car is 'warming up' but the last test drive shows that its an intermittent issue.

AC has been kept off for fear of burning the compressor out... but I'm thinking either;

1. Bad AC Belt
2. Bad compressor

Anyone have any ideas / where to get needed parts? I have to keep this as cheap as possible - Too many expenses coming up and I need to keep my little girl cool.


Also - Does anyone have a digital copy of the service manual for the 07 STI?

Thx guys
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Old 07-20-2009, 07:47 PM   #2
v8eaterWRX
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Probably would have to see it, but sounds like the compressor may be going bad man. IIRC if it was a squeaky belt it would happen a lot more (my buddies 06 needs a belt, makes noise almost nonstop)

If it is the compressor then I would get it from barry (japcarrealgood) or check jay (evil performance)

If it is the belt, im sure jay can get it for you at a good deal.
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Old 07-20-2009, 11:23 PM   #3
TixArmy
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Just wondering -

Would the Warranty. still apply to this type of an issue ... even with 45.2K miles? (I highly doubt it... but I have to try.)

Also,

Barry/Jay

Could you please PM me some prices for both the compressor and belt? I will have to find someway to get the car looked at.

Anyone have some free time tomorrow after 4PM?

Thanks for the input thus far!
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Old 07-21-2009, 12:08 AM   #4
Evil Imports
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i do have a compressor in my garage, but its from a 04-05 sti, i believe they changed the way the lines go into the compressor, i would think it would be under the powertrain warranty?? not sure about that as i never used a warranty for any subaru i have owned
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Old 07-21-2009, 01:40 AM   #5
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Quote:
Originally Posted by Evil Imports View Post
not sure about that as i never used a warranty for any subaru i have owned

Haha, you should bring the purple one in to a dealer and tell them there is a fueling issue and see what they do
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Old 07-21-2009, 03:19 AM   #6
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Haha, you should bring the purple one in to a dealer and tell them there is a fueling issue and see what they do
i don't wanna pay LoL
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Old 07-21-2009, 11:01 AM   #7
2TG8V
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check pressures before replacing compressor,they do this when low on charge.
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Old 07-21-2009, 11:09 AM   #8
TixArmy
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Thanks again for all the input guys.

I forgot to mention that when this all started the mileage went south Fast...
I mean on the order of 115 miles / tank...........

I assumed this was due to extra work being down to spin the AC.
I will have to see how it does on the current tank now that the AC has been kept off.

How do I check the pressure? (Lack of tools - Is there a place I can rent them?)
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Old 07-21-2009, 05:28 PM   #9
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115/ TANK! That is has nothing, if much, to do with the a/c being on. You should be getting 200+ I'd imagine. My 02wrx gets 280miles/tank w/ a/c on, and I dont drive lightly.

The a/c squeal could be a loose belt, or a belt thats glazed, I'd honestly be surprised if the belt was bad at less then 50k miles on it. Does it still make cold air, and does the squealing stay for longer then a few seconds? Also is the front of the compressor red or orange? That would be a sure sign the compressor is getting worn out.

Bring the car by my shop, i'll give you a free diagnosis. And hook you up SWIC style if you need any repairs.

People can vouch for me and my shop on here.

Greg Miller
Arizona Auto & Air
6315 S Kyrene #104
Tempe, AZ 85283
cell. 480.241.8803
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Old 07-21-2009, 06:47 PM   #10
sje323
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wow, this is funny (well sort of ) because my car just started doing this last week. almost all of the same symptoms as you're describing.
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Old 07-22-2009, 02:06 PM   #11
TixArmy
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Ok - the latest;

W/ the AC off I am starting to get the mileage I used to get - about 220 - 240 depending on driving (W/ Cobb stg 2 map). Hell, if I can get more like Greg is talking about - PLZ tell me how hahah

I did turn the AC on for the ride home yesterday. The squeak was there at first and it slowly faded out - but then came intermittent squeaks at various RMPs (on both highway and street). Air is Cold - although I recall the STi I test drove had colder AC than mine ever did!

The front of the AC compressor still looks new. It doesn't seem orange or red... tho a little more red in the engine bay 'could' look neat (if done right) .

Greg - Thanks for the offer. Expect my call in a few - I need to arrange for daycare & I hope to be able to stop by tomorrow.
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Old 07-22-2009, 04:40 PM   #12
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I had the exact same problem... apparently subarus has this problem with the ac... it would sound like shi% when first turning on the ac for a few secs then every once in a while ( when the ac clutch engages, not certain rpm's ) you can hear a chirp sound... Im mad cause i drove like this for a few years only to find out 2 min of tightening a belt resolved the issue. Might be different for your situation but I would check that first cause it seems to loosen up over time on subarus...
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Old 07-22-2009, 04:42 PM   #13
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Quote:
Originally Posted by TixArmy View Post
Ok - the latest;

W/ the AC off I am starting to get the mileage I used to get - about 220 - 240 depending on driving (W/ Cobb stg 2 map). Hell, if I can get more like Greg is talking about - PLZ tell me how hahah

I did turn the AC on for the ride home yesterday. The squeak was there at first and it slowly faded out - but then came intermittent squeaks at various RMPs (on both highway and street). Air is Cold - although I recall the STi I test drove had colder AC than mine ever did!

The front of the AC compressor still looks new. It doesn't seem orange or red... tho a little more red in the engine bay 'could' look neat (if done right) .

Greg - Thanks for the offer. Expect my call in a few - I need to arrange for daycare & I hope to be able to stop by tomorrow.

dont forget we live in az... get your ac lines vacuumed and re-charged and it will be like new... probably as cold as the sti unless the sti has a better ac compressor or something....
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Old 07-22-2009, 04:43 PM   #14
alenk37
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Quote:
Originally Posted by 2TG8V View Post
check pressures before replacing compressor,they do this when low on charge.
what he said
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Old 07-23-2009, 02:55 PM   #15
racingfish
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powertrain warranty does not cover ac... only parts that oil lubercates... no ac/alt/belts/hoses/wires/shocks/springs/neon.

ac is part of 3/36k if you have a subaru added security warranty (gold) it would be covered. but thats if you bought the Subaru extended. If you only heard a squeek and ac was still cold id say it was your bearing.. but since u said your ac is hot then it may be your compressor... check your condensor too see if u picked up any rocks... good luck jeff.
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Old 07-23-2009, 04:22 PM   #16
TixArmy
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^^ Thx man.

I will be heading down to see Greg after I get outa work. With luck he can pinpoint the issue - maybe even fix it right there if its simple.

I was told the 134a contains oil intermixed in the fluid? Guess this oil doesn't count huh

I will let you guys know what the outcome is.
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Old 07-24-2009, 01:30 AM   #17
2TG8V
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I have seen the compressor o-rings go bad where the hoses connect .
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Old 07-24-2009, 05:09 AM   #18
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Before ya go spendin a chunk of change,
you can bring it over to my house and we'll figure it out.
I believe I have O-rings, a compressor, a condenser, and my buddy has an A/C machine.
Call me anytime
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Old 07-24-2009, 05:11 AM   #19
JapCarRealGood
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...plus, I live off the 101 and the i17
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Old 07-24-2009, 09:32 AM   #20
TixArmy
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Update;

Greg was kind enough to look over the car yesterday. Here is what was discovered (Greg please feel free to smack me around if I am wrong).

1. There was a small leak from a low pressure line - bad o-ring. Greg replaced.
2. He also vacuumed out the system and found I was 1/3 (or was it 1/4?) down from a full system. (This is on the 16 -19oz - unsure if other years are the same?)
3. He was able to get it to squeak, but not able like it does for me - and I blame the driving on the 101 for that... it warmed it up.

Right now it looks like he was right, and the squeak is coming from the AC clutch - I guess its just not holding and its allowing it to slip until it gets up to temp. From there on out, its a small, short skip/squeak as the compressor re-engages to charge the system. The air is blowing much colder than it was, however, it has not (ever) gotten to the point where the temp sensor turns the AC off due to the required cooling temp being reached.

I need to put a special Thanks to Greg in here. I truly appreciate the professional assistance as well as the friendly attitude. You have a great shop. I just wish it was closer to the west side

Barry, I will give you a call later in the day. If you don't mind me stopping by with the little one I'd love to see what you have for parts and if we can get this blasted thing to work as its supposed to.

I was going to announce this Monday night, when I had picts, but Kiddo #2 is well underway. <- This is why I am trying to keep this as cheap as I can.

Last edited by TixArmy; 07-24-2009 at 09:33 AM. Reason: typo fix
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Old 08-04-2009, 12:59 PM   #21
David.Machowski
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Default AC Issues

I have an 04 WRX, and since you guys are talking about AC, my compressor is running non stop, the air has a little chill to it, but is not getting really cold? Which is surprising because last night got cold which was normal. What would cause the compressor to run non stop? Low charge? I checked the compressor, and there are no visable leaks or wet/oil spots, i changed the belt out about 2 months ago, and about 4 months ago changed out tension pulley. Just curious what to suggest next. Suby has 98,000 so WAY out of warranty lol. Any help would be greatly appreciated, as today in AZ supposed to hit 114 YAY

Thanks
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Old 08-04-2009, 04:45 PM   #22
TixArmy
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^^ I feel for you.

I am learning a lot from this issue.

Did you get your system vacuumed out and topped off? If so, how much did they take out?

There could be leaks you don't see. If the pressure is not there, the compressor would run more often.

For my issue, I had to open a support tkt w/ Subaru of America, they will be working with the dealer, or so I am told.

If not, Barry has hooked me up w/ a plan B.

(Barry - didnt forget about you, just waiting to hear from SoA)

Last edited by TixArmy; 08-04-2009 at 04:45 PM. Reason: typos
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Old 08-04-2009, 06:46 PM   #23
Chaz2.5
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Quote:
Originally Posted by David.Machowski View Post
I have an 04 WRX, and since you guys are talking about AC, my compressor is running non stop, the air has a little chill to it, but is not getting really cold? Which is surprising because last night got cold which was normal. What would cause the compressor to run non stop? Low charge? I checked the compressor, and there are no visable leaks or wet/oil spots, i changed the belt out about 2 months ago, and about 4 months ago changed out tension pulley. Just curious what to suggest next. Suby has 98,000 so WAY out of warranty lol. Any help would be greatly appreciated, as today in AZ supposed to hit 114 YAY

Thanks
How much pressure is in the system? I had the same issue, i checked with a gauge and was sitting right at 15psi, which apparently is high enough for the compressor to turn but too low to blow cold air. Bought some R-134a refill from autozone, sitting at 25-30 psi now and blows cold.
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Old 08-05-2009, 11:53 AM   #24
David.Machowski
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Default AC Issues

Thanks Chaz2.5, i had some R134A left from when my wife had AC issues, and put it on the car, and i was at 20 psi, which was just enough for it to blow cool. I filled it up to 35-38 PSI, and now it is ICE cold again. Thanks for the tip.

Thanks,
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Old 08-05-2009, 03:13 PM   #25
szeny
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try tightening your belt too? mine was making that squeak and being ruhtarded and just needed a tighten
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