Thread: Ac noise?

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  1. #1 Ac noise? 
    GT Level Member RyanL's Avatar
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    Hey so I changed my a/c compressor today because my old one was making noise. Kinda like a wheel bearing noise when the a/c was on and went with the rpm, the higher the rpm the louder it was. So I got a rebuilt one but it's doing the same thing but not as much. Does anyone else's a/c make any noise? Or did I get unlucky and get a bad rebuild?
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  2. #2 Re: Ac noise? 
    GT Level Member taman86's Avatar
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    My compressor does that too and is pretty annoying, but I'm lazy
    01 T/A WS6-SOLD
    97 grand prix gtp- flowmaster mufflers, short ram intake, SD headers (no cat), EGR delete, 160* stat, solid motor mount, AL 606's, ported TB, new coils,lifetime warranty plug wires
    BoostnBlackGTP>"Wbody's r cheap to do up and fix but break down alot lol"
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  3. #3 Re: Ac noise? 
    I AM PEWPIN! rynoman03's Avatar
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    It's the clutch engaging and disengaging. If it works leave it alone. Coolness is better than no coolness.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  4. #4 Re: Ac noise? 
    GT Level Member taman86's Avatar
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    Nope nothin. Well actually I replaced the relay switch a while back and I can feel the ac getting slightly cool but I think I need a new compressor and a recharge
    01 T/A WS6-SOLD
    97 grand prix gtp- flowmaster mufflers, short ram intake, SD headers (no cat), EGR delete, 160* stat, solid motor mount, AL 606's, ported TB, new coils,lifetime warranty plug wires
    BoostnBlackGTP>"Wbody's r cheap to do up and fix but break down alot lol"
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  5. #5 Re: Ac noise? 
    GT Level Member taman86's Avatar
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    And mine makes a constant whirrrrrrr all the time and is more audible with more rpms. So at wot, I hear that over my sc
    01 T/A WS6-SOLD
    97 grand prix gtp- flowmaster mufflers, short ram intake, SD headers (no cat), EGR delete, 160* stat, solid motor mount, AL 606's, ported TB, new coils,lifetime warranty plug wires
    BoostnBlackGTP>"Wbody's r cheap to do up and fix but break down alot lol"
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  6. #6 Re: Ac noise? 
    GT Level Member RyanL's Avatar
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    Ya it's annoying! And it sucks cuz I just did the whole job for nothing! Now have to order another one and wait for it to come an watch people turn and look wo seeing wtf that noise is!
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  7. #7 Re: Ac noise? 
    GT Level Member taman86's Avatar
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    Yep
    01 T/A WS6-SOLD
    97 grand prix gtp- flowmaster mufflers, short ram intake, SD headers (no cat), EGR delete, 160* stat, solid motor mount, AL 606's, ported TB, new coils,lifetime warranty plug wires
    BoostnBlackGTP>"Wbody's r cheap to do up and fix but break down alot lol"
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  8. #8 Re: Ac noise? 
    GT Level Member RyanL's Avatar
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    Quote Originally Posted by rynoman03 View Post
    It's the clutch engaging and disengaging. If it works leave it alone. Coolness is better than no coolness.
    yes the clutch engages and the a/c works just fine just dont want to have that loud noise when im trying to be cool lol!
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  9. #9 Re: Ac noise? 
    I AM PEWPIN! rynoman03's Avatar
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    I hear ya. That's why i don't like buying re-man stuff. I buy junkyard OEM parts or Brand New. Never had good luck with anything re-manufactured.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  10. #10 Re: Ac noise? 
    GT Level Member RyanL's Avatar
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    so has anyone ever heard of the a/c system being clogged? apparently this can happen. but what causes this condensation in the lines? another tech in the shop says you shouldnt have it after you do the vacuum... I held the vacuum for 20 mins then added die and did the re-charge everything went normal. dont know whats goin on.
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  11. #11 Re: Ac noise? 
    GT Level Member RyanL's Avatar
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    So how do I check for a clogged system? How do I know where it is? Should I be able to hear not noise with a stethoscope on the dryer or condenser? Anyone ever done this?
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  12. #12 Re: Ac noise? 
    GT Level Member mkyota1's Avatar
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    If you have access to a set of gauges you can check your pressures. In my experience, if you have a restriction, the low side will be lower then it should be and the high side will be higher than it should be. This will get worse as you rev the engine.
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  13. #13 Re: Ac noise? 
    GT Level Member mkyota1's Avatar
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    It sounds to me like you got a bad reman compressor.
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  14. #14 Re: Ac noise? 
    Killa Bee Scottydoggs's Avatar
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    did you change the orifice tube and the dryer?

    if not id say it safe to say you just killed your new compressor, that stuff holds the junk that the old compressor let loose, and now its most likely in the new parts.

    thats why when you go to a shop to have it fixed they charge so much, because they wont just change a compressor.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  15. #15 Re: Ac noise? 
    GT Level Member RyanL's Avatar
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    No I didn't change the dryer or orifice tubes! But my compressor is still working! I just need to know how to check this so I can get the right parts and do it ASAP!
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  16. #16 Re: Ac noise? 
    GT Level Member RyanL's Avatar
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    ok so im not getting a lot of help here! i dont know what i have to change here! need a new dryer? orifice tubes? condensor? evaporator? dont know a lot about a/c.
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