GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Page 1 of 2 12 Last Post byLast Post by
Results 1 to 10 of 11
  1. #1

    Default Yukon XL ac question

    I have a 2001 Yukon XL that I have had since new. Currently at 179,000 miles. Recently the ax compressor clutch was making noises like it was trying to engage. Now the compressor does not come on at all. No sound.

    What kind of price should I expect to have a shop R/R it and refill the system?

    Half ton. 5.3L motor. 4x4.
    Last edited by zrxoa1; 09-27-2010 at 11:40 PM.

  2. #2
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Well first you will want to verify it is the compressor (a search of the site will get you some troubleshooting tips) and a shop charged me $180 to do a refill...
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  3. #3

    Default

    Thanks. I need to poke around some, but was just curious what others had paid. I am pretty sure it is the compressor though.

  4. #4
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Well it might just be a clutch which means on certain compressors no need for a refil, just replace the clutch. But good luck and let us know how it turns out.

  5. #5

    Default

    OK, I found a suggestion to jumper the compressor using the accumilator plug.... I stuck both ends of a paper clip into the plug and my compressor fired right up. So am I just looking at needing to replace the switch on the accumilator/dryer? Also, while the compressor was running, I did not really feel a lot of cold air coming from the vents, but it is very cool out today so it was hard to tell.

    Here is the way everything started.... the ac was cold (though not as cold as it used to be....) but every now and then I would hear this sound from under the hood....like the comp clutch was trying to disengage, reengage... this would be accompanied by a loss of cold air. Then one day the comp just stopped coming on, no cold air.

    I thought I had a bad clutch, or compressor, but jumping it today proves both are working. Guess I should try a new accum/dryer switch and see what that does?

    Then, IF that works but the air is still not as cold as I would like, how do you test the high/low pressure? Is that something I should take it to a garage for?

    Thanks for any more help, gotta love these trucks!!!!


  6. #6
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Alright you actually most likely have a leak of some kind to loose the pressure, since the compressor went from on, to kicking on and off, to not at all in what seems like a fairly quick time frame (a month?). There are threads about filling your AC system and finding leaks as well (i was involved in a lot of them and there were a lot this summer thanks to the hot temps) so if you read over and want to take it on yourself then go for it. If you feel you dont want to deal with it then go to a shop. Also some of this relys on having a set of hand tools, and mechanical ability (no insult intended there are certain things that every mechanic knows they just cant do)
    and either way keep us posted.

  7. #7

    Default

    Well, I do all the maintenance on my motorcycles. Even rebuilt a top end myself, but for this I think I wil take it to a pro. Would the leak cause the switch on the accumilator to go bad....or does this even mean the switch is bad? I mean, should I even waste money on a new switch?

  8. #8
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Dont waste the money on a new switch since the switch actually did its job as you lost pressure the switch kept the compressor from burning up. I would have a pro pressure test the system and look for leaks etc...

  9. #9

    Default

    Sounds like good advice. Thanks!

    ---------- Post added at 09:13 AM ---------- Previous post was at 09:12 AM ----------

    I just hope the leak (if there is one) is not from the lines going to the rear ac. A guy I work with had those go bad.... he was priced at over $500 EACH line!!!! That was just for the part....

  10. #10
    Legend
    murdog94's Avatar
    Join Date
    Feb 2008
    Location
    Cloquet, Minnesota, United States
    Posts
    8,198
    Blog Entries
    12

    Default

    Well that depends on how bad you need to keep your AC. Because you can switch the lines on the Yukon out for lines from a Silverado/Sierra, and eliminate the rear AC if they are bad and you arent concerned with AC.

Page 1 of 2 12 Last Post byLast Post by

Similar Threads

  1. 1996 yukon exhaust question
    By yukonlover89 in forum Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)
    Replies: 0
    Last: 06-16-2009, 11:18 AM
  2. 95 Yukon GT blower motor replacement question
    By 95YGT in forum General Chevy & GM Tech Questions
    Replies: 2
    Last: 03-16-2009, 08:33 PM
  3. 02 yukon stock radip question
    By ChuckD in forum Audio, Video & Gadget Tech
    Replies: 1
    Last: 12-28-2008, 10:57 PM
  4. New 2004 Yukon owner with question
    By jennmw in forum The Coffee Shop ~ Chit Chat
    Replies: 2
    Last: 10-20-2006, 09:30 AM
  5. Question about 2005 GMC Yukon
    By MVient in forum Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)
    Replies: 1
    Last: 07-09-2005, 05:00 PM

Tags for this Thread

Posting Permissions

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