Rear Strut/Air bag leak
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  • 1 Post By Ludacrisvp
Cadillac STS Forum - 2005 through 2012 Discussion, Rear Strut/Air bag leak in Past Cadillac Vehicle Discussion; shock.jpg After checking brake pad wear, I noticed squeezing the air bag made a hissing sound. Poured some soap on ...
  1. #1
    Midnight is offline Cadillac Owners Fanatic
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    Rear Strut/Air bag leak

    shock.jpg

    After checking brake pad wear, I noticed squeezing the air bag made a hissing sound. Poured some soap on it and you can see where the air is coming out. This isn't normal right? I mean, if you were to "blow" into the inflation valve it just bleeds right out the top. I figured if it went bad, it'd be on the rubber part, it's pretty surprising to me that it'd be on the top.

    I have never noticed my car sitting low or anything, and it's something I notice quite a bit when other cars are, but I guess I don't often carry a lot of heavy things back there either.

    Here's the label on the front of the strut in case someone is wondering.

    label.jpg

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    1BadCadSTS's Avatar
    1BadCadSTS is online now Cadillac Owners Connoisseur
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    Air should only come in and out of the valve where the air line connects. Anything else is a failed strut bag.

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    Ludacrisvp's Avatar
    Ludacrisvp is offline Cadillac Owners Connoisseur
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    Re: Rear Strut/Air bag leak

    I would replace it sooner rather than later. Not sure how long your compressor will last being on all the time to compensate for the leak.
    mckellyb likes this.

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    1BadCadSTS's Avatar
    1BadCadSTS is online now Cadillac Owners Connoisseur
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    Quote Originally Posted by Ludacrisvp
    I would replace it sooner rather than later. Not sure how long your compressor will last being on all the time to compensate for the leak.
    Correct!!!

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    Guy.Seminerio is online now Cadillac Owners Connoisseur
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    Re: Rear Strut/Air bag leak

    yep. On previous caddy's with the air suspension in the back, I've had leaks but caught them early. The only way I knew was that when there was a load in the back, about 50% of the time I'd hear the compressor working but the car remaining low. But with no load, the car looked normal. If I never changed it, I'm sure I'd eventually see sagging with no load.

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    Midnight is offline Cadillac Owners Fanatic
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    Re: Rear Strut/Air bag leak

    Thanks guys. Going to see if Rippy can hook me up with a new one.

  8. #7
    B1n2fra's Avatar
    B1n2fra is offline Cadillac Owners Fanatic
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    Quote Originally Posted by Midnight View Post
    <img src="http://www.cadillacforums.com/forums/attachment.php?attachmentid=121633"/>

    After checking brake pad wear, I noticed squeezing the air bag made a hissing sound. Poured some soap on it and you can see where the air is coming out. This isn't normal right? I mean, if you were to "blow" into the inflation valve it just bleeds right out the top. I figured if it went bad, it'd be on the rubber part, it's pretty surprising to me that it'd be on the top.

    I have never noticed my car sitting low or anything, and it's something I notice quite a bit when other cars are, but I guess I don't often carry a lot of heavy things back there either.

    Here's the label on the front of the strut in case someone is wondering.

    <img src="http://www.cadillacforums.com/forums/attachment.php?attachmentid=121641"/>
    Same place mines leaked at. I was shocked also that it would leak there rather than the bag itself. Weird if you ask me. Maybe a flaw in design

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