Air ride compressor runs long; can't find air leak
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Air ride compressor runs long; can't find air leak in Cadillac Escalade Forums; Hey guys, So recently I had the "Service Ride Control" message and determined my compressor went bad. I replaced it ...
  1. #1
    rpulawski is offline Cadillac Owners Member
    Automobile(s): 04 Escalade
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    Air ride compressor runs long; can't find air leak

    Hey guys,

    So recently I had the "Service Ride Control" message and determined my compressor went bad. I replaced it with the Dorman version (installation was pretty easy and straight forward), and the compressor fires right up after turning the truck over and the message is gone.

    Sometimes the compressor runs for 5 seconds and stops (which I'm assuming is normal) but sometimes it runs for a good minute or so, and/or comes back on a few minutes after driving. I do not have any extra load in the truck, so I'm assuming I have a leak in the rear shock(s). I also notice the truck leans slightly on the driver side when turned off (levels out after compressor does it's job). I sprayed the rubber boot area with a soapy water mix, but couldn't see any bubbles. Seems like a dumb question, but are there air lines that run to each strut that I should spray as well? Also, is there anywhere else that I can check for leaks? Do the front struts run off of this compressor as well? I also have a "whooshing" sound when I drive, sound like something is rubbing which I think may be related.

    Any direction would be helpful! THANK YOU!

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    the cadillac man's Avatar
    the cadillac man is online now Cadillac Owners Master
    Automobile(s): 03 cadillac escalade
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    You have to work the rear bumper up and down with the soapy water on the shocks
    Yes there is air lines going to each shock in the back

    Given that the drivers side sits lower then its likely the driver side rear shock has a leak(likely a hidden leak if your hearing a random air leak)

    Normally the compressor vents out when a change in load is detected(less wight) or pumps up the shocks(more wight)

    There is a relay just outside the under hood fuse box pull it to prevent the compressor from burning itself up(it will quick with a leak in the system)

  4. #3
    rpulawski is offline Cadillac Owners Member
    Automobile(s): 04 Escalade
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    Re: Air ride compressor runs long; can't find air leak

    Ok, I'll take another look. Also, on rock auto they have Monroe rear shocks for around $225 (orange) I believe that's what's on the truck now. They also have acdelco and a few other brands for $113 and less... Anyone have opinions on these less expensive air ride shocks? I'm assuming I would need to buy a pair so they match in the back...

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    the cadillac man's Avatar
    the cadillac man is online now Cadillac Owners Master
    Automobile(s): 03 cadillac escalade
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    Quote Originally Posted by rpulawski
    Ok, I'll take another look. Also, on rock auto they have Monroe rear shocks for around $225 (orange) I believe that's what's on the truck now. They also have acdelco and a few other brands for $113 and less... Anyone have opinions on these less expensive air ride shocks? I'm assuming I would need to buy a pair so they match in the back...
    Monroe makes the Delphi shocks under the acdelco brand for gm
    If they are cheaper then go for it
    Yes shocks has to be replaced in pairs

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