Results 1 to 11 of 11

Noise when AC is on?????

This is a discussion on Noise when AC is on????? within the General Help forums, part of the LSx Technical Help Section category; I have a 98 z28 and can hear a noise that sounds like bearings when my AC is on. The ...

  1. #1
    I lika da Chevy's LETHALxLS1's Avatar
    Join Date
    Oct 2006
    Location
    USA
    Posts
    5,328

    BLACK
    Z/28 LS1

    Noise when AC is on?????

    I have a 98 z28 and can hear a noise that sounds like bearings when my AC is on. The air works great but this noise seems to have gotten worse over the past few months. Anybody have any idea what it could be? Could it be the compressor? Is there anything I can do or just deal with it till something goes out??? Thanks

  2. #2
    Junior Member pilot13blackcat's Avatar
    Join Date
    Mar 2007
    Location
    Topeka, Ks
    Age
    32
    Posts
    42

    Maple Red
    2002 Formula

    Check the pressure of the system! does it whine constantly when the a/c is on? My 02 whines constantly when i turn it on. I had it checked at the dealer and the compressor checks out its just loud as hell.

  3. #3
    I lika da Chevy's LETHALxLS1's Avatar
    Join Date
    Oct 2006
    Location
    USA
    Posts
    5,328

    BLACK
    Z/28 LS1

    It doesnt whine it sounds like bearings but real loud.

  4. #4
    Junior Member pilot13blackcat's Avatar
    Join Date
    Mar 2007
    Location
    Topeka, Ks
    Age
    32
    Posts
    42

    Maple Red
    2002 Formula

    check your a/c idler pulley and the a/c tensioner. I tried these first hoping it would be a cheap fix, it was still the compressor

  5. #5
    I lika da Chevy's LETHALxLS1's Avatar
    Join Date
    Oct 2006
    Location
    USA
    Posts
    5,328

    BLACK
    Z/28 LS1

    I will do that. How much was a new compressor and where did you get it??? How much was labor? thanks

  6. #6
    Junior Member pilot13blackcat's Avatar
    Join Date
    Mar 2007
    Location
    Topeka, Ks
    Age
    32
    Posts
    42

    Maple Red
    2002 Formula

    No new compressor for me! i have to drive around with embarasement until the dam thing quits(the car only has 30k on it!) I think a new compressor is around 500$

  7. #7
    I lika da Chevy's LETHALxLS1's Avatar
    Join Date
    Oct 2006
    Location
    USA
    Posts
    5,328

    BLACK
    Z/28 LS1

    Quote Originally Posted by pilot13blackcat View Post
    No new compressor for me! i have to drive around with embarasement until the dam thing quits(the car only has 30k on it!) I think a new compressor is around 500$
    You are saying the bearings are wore out which makes that noise?? I am thinking the bearings may be able to be replaced without major problems or disconecting the compressor. I guess I will be checking into it. That sucks with such low miles!!! sorry to hear about that!!!

  8. #8
    Junior Member pilot13blackcat's Avatar
    Join Date
    Mar 2007
    Location
    Topeka, Ks
    Age
    32
    Posts
    42

    Maple Red
    2002 Formula

    If it is bearings they are probalby inside the compressor wich are to difficult to repair. i think you can buy remanufactured for as cheap as 250$ but i stick with gm parts. I would have an a/c confirm anything before any major money is spent.

  9. #9
    I lika da Chevy's LETHALxLS1's Avatar
    Join Date
    Oct 2006
    Location
    USA
    Posts
    5,328

    BLACK
    Z/28 LS1

    Quote Originally Posted by pilot13blackcat View Post
    If it is bearings they are probalby inside the compressor wich are to difficult to repair. i think you can buy remanufactured for as cheap as 250$ but i stick with gm parts. I would have an a/c confirm anything before any major money is spent.
    I agree yea I stick with GM parts too or you are wasting money.

  10. #10
    Senior Member Street Lethal's Avatar
    Join Date
    Aug 2005
    Location
    Old Bridge "Raceway Park" N.J.
    Posts
    1,249
    2009 Corvette ZO6

    Quote Originally Posted by deadbydawn421
    I have a 98 z28 and can hear a noise that sounds like bearings when my AC is on. The air works great but this noise seems to have gotten worse over the past few months. Anybody have any idea what it could be? Could it be the compressor? Is there anything I can do or just deal with it till something goes out?
    It's the A/C clutch, it's on it's way out. Happened to mine about thirty thousand miles ago (very common, especially on 98's). If you pop the hood you'll be able to hear the same sound (but lighter) with the A/C turned off, then immediately become very prevalent when turned on....

    Just remove the belt if the noise bothers you that much. Yes, you'll sacrifice air conditioning, but that's why we have windows though. New units are quite expensive, and rebuilding the stocker just ain't worth it. You can always look for a used (albeit good) unit from a car either totaled, or parting out, or simply eliminate it entirely.

  11. #11
    I lika da Chevy's LETHALxLS1's Avatar
    Join Date
    Oct 2006
    Location
    USA
    Posts
    5,328

    BLACK
    Z/28 LS1

    Quote Originally Posted by Street Lethal View Post
    It's the A/C clutch, it's on it's way out. Happened to mine about thirty thousand miles ago (very common, especially on 98's). If you pop the hood you'll be able to hear the same sound (but lighter) with the A/C turned off, then immediately become very prevalent when turned on....

    Just remove the belt if the noise bothers you that much. Yes, you'll sacrifice air conditioning, but that's why we have windows though. New units are quite expensive, and rebuilding the stocker just ain't worth it. You can always look for a used (albeit good) unit from a car either totaled, or parting out, or simply eliminate it entirely.
    I believe you are correct. When I lived in Alabama years ago I took the belt off my 84 H.O. Z28 and it was hot in the summer but I could deal with it. Now I live here in Florida where summertime feels like you are breathing in air from a hair dryer and I am a bit older now so there is no way I can live without air here. Its torture and your shirt/ass will be soaked with sweat which I dislike. I guess when it goes out totally I will have to bend over and buy a new compressor.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Rear end noise
    By 980birds in forum Drivetrain
    Replies: 1
    Last Post: 03-22-2007, 03:01 PM
  2. Loud Squeeking Noise!
    By justinlandis in forum Suspension and Handling
    Replies: 1
    Last Post: 10-04-2006, 05:32 PM
  3. whine noise that changes pitch with gear change
    By enthashyt in forum General Help
    Replies: 5
    Last Post: 09-04-2006, 11:17 PM
  4. help with whining noise please!
    By 1998zman in forum General Help
    Replies: 3
    Last Post: 03-26-2006, 01:18 AM
  5. noise coming from rear end of car, confuses me
    By Matto4785 in forum Drivetrain
    Replies: 21
    Last Post: 09-26-2005, 07:45 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •