XTS Rear Air Suspension
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Cadillac XTS Forum Discussion, XTS Rear Air Suspension in Current Cadillac Vehicle Discussion; Each morning when I start my XTS the air compressor cranks away for about one min. I don't remember it ...
  1. #1
    handymantoo is offline Cadillac Owners Member
    Automobile(s): 2013 Premium XTS
    Join Date
    Oct 2011
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    XTS Rear Air Suspension

    Each morning when I start my XTS the air compressor cranks away for about one min. I don't remember it doing that when I first purchased the car. My thought a leak in the air system. Before I go back to the dealer I thought I'd see if any one else has noticed a similar occurance.

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  3. #2
    thebigjimsho's Avatar
    thebigjimsho is offline Cadillac Owners 10000+ Posts
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    Has there been temp changes lately?

  4. #3
    Jim W is offline Cadillac Owners Member
    Automobile(s): Cadillac 2013 XTS
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    Re: XTS Rear Air Suspension

    I haven't noticed the compressor but I am getting a high pitched whistle sound from rear when car is slowing after a run.
    Dealer has heard it but not sure what it is.
    Taking it in tomorrow, so will report back.
    Premium AWD 3800 miles.
    Has anyone else heard this sound

  5. #4
    CAPT Mike is offline Cadillac Owners Fanatic
    Automobile(s): 2013 XTS
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    Re: XTS Rear Air Suspension

    I hear strange sounds from the rear suspension, but I'm pretty certain that this is "normal." Noises have been heard from that area with my '77 Eldorado to my (traded) 2011 BMW X5. Without the variable suspension, you get quiet when you parked in the garage. And just FYI, Harley tour bikes have air suspension in the rear and unlike the Gold Wings that have a compressor on board, they have to be checked and manually pumped up when needed and the PSI is dependent on the load being carried. The air will fluctuate due to temp, humidity, hours of riding, etc. So there can be a lot of variables that will kick the XTS compressor on and off. Compressor make funny noises.

  6. #5
    CDN XTS is offline Cadillac Owners Fanatic
    Automobile(s): 1995 SLS -> 2003 STS ->2013 XTS Platinum
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    Re: XTS Rear Air Suspension

    Per Manual

    "........ The system may exhaust (lower vehicle height) for up to 10 minutes after the engine has been turned off. You may hear the air compressor operating when the height is being adjusted; this is normal. If the compressor runs often for longer than one minute within the same trip and the vehicle remains low in the rear, see your dealer for service."

    Is this perhaps the noise to which you are referring?

  7. #6
    pmnef Guest

    Re: XTS Rear Air Suspension

    I have this noise and it is also when I am driving slowly. I brought it to the dealer and they told me it was normal.

  8. #7
    JoeGrapes is offline Cadillac Owners Member
    Automobile(s): 2013 XTS4
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    Sep 2013
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    60
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    Re: XTS Rear Air Suspension

    Mine did the same thing. The compressor started to get really loud when I first start the car and then stop after about 5 seconds. I had the dealer look at it but they said all was fine. I knew it wasn't since it never made any noise before. After about a month the compressor finally quit and the car tilted to the right. The dealer replaced the compressor and the sensor under warranty and now it's fine. The car actually rides better now. I'm thinking the compressor my have been pumping up more than it should with no weight in the car giving it a harsher ride.

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