Thread: AC system won't fill and compressor motor clunks?

Results 1 to 3 of 3
  1. #1 AC system won't fill and compressor motor clunks? 
    SE Level Member
    Join Date
    Aug 2015
    Location
    United States
    Posts
    22
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    This is my situation: https://streamable.com/cxc251

    I pulled a vacuum on my system which hasn't been working for a while, and it seemed to hold so I tried to fill it with some R134A and UV dye. However, when I tried to add the refrigerant I got a clunking noise from the compressor (I think) and the engine revs down a little. Both issues can be seen in the video. Is my compressor shot? I'm thinking I'll need to replace that, it may also be the source of the system originally leaking...
    Reply With Quote  
     

  2. #2 Re: AC system won't fill and compressor motor clunks? 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,815
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    After the vacuum did you add freon with the car running or not?

    Recently worked with an ac guy and he adds without it running to bring it about 3/4 of the amount needed then fires up the car. Also if the compressor won't kick on it might be either the low or high pressure switches not being happy. In that case you sometimes have to jump the compressor to get it going and once you have let it run for a couple of minutes go back to allowing the pcm control it.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

  3. #3 Re: AC system won't fill and compressor motor clunks? 
    SE Level Member
    Join Date
    Aug 2015
    Location
    United States
    Posts
    22
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I had the car running when I added refrigerant. The dash light for the AC kept going out, and I kept turning it on. I got the car to take a little refrigerant, but it just didn't want to seem to fill. If I revved up the engine a little, I was sometimes able to get the compressor "clunking" like in the video, but it still wouldn't take much refrigerant and the compressor wasn't fully on.

    How would I go about "jumping" the compressor? Might be something to try considering the system hasn't been run in a while. Last time I filled it I did get cold air until the refrigerant leaked out so the compressor was running.
    Reply With Quote  
     

Similar Threads

  1. Loud rotating clunks
    By LowRidinCrew in forum Brakes/Suspension/Chassis
    Replies: 1
    Last Post: 05-31-2014, 03:48 AM
  2. Still clunks after changing front sway bar end links 3 times...
    By sgtmac in forum Brakes/Suspension/Chassis
    Replies: 5
    Last Post: 12-26-2013, 03:51 PM
  3. Problems taking off, shudders and clunks into gear
    By Eddie Jackson in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 10
    Last Post: 03-02-2012, 12:20 PM
  4. Rear end Clunks
    By reddog in forum Brakes/Suspension/Chassis
    Replies: 4
    Last Post: 09-07-2010, 07:27 PM
  5. Tranny clunks/no lower gears?
    By SDGTP99 in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 3
    Last Post: 05-31-2009, 07:07 PM
Tags for this Thread

View Tag Cloud

Bookmarks
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
  •