2002 Escalade EXT mechanical issue
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, 2002 Escalade EXT mechanical issue in Cadillac Escalade Forums; When I first turn on the car within 5 minutes i hear some Mechanical noise it goes on for about ...
  1. #1
    pellegrino is offline Cadillac Owners Member
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    2002 Escalade EXT mechanical issue

    When I first turn on the car within 5 minutes i hear some Mechanical noise it goes on for about a minute then shuts off. No clue what It could be anyone ever have this issue and could tell me how to get it fixed definitely do not think thats supposed to happen. Thanks!

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  3. #2
    the cadillac man's Avatar
    the cadillac man is offline Cadillac Owners Master
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    Is the truck moving when it does this?

    Is there any messages shown on the information center?

  4. #3
    Retrax's Avatar
    Retrax is offline Cadillac Owners Fanatic
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    Re: 2002 Escalade EXT mechanical issue

    Air compressor for shock absorbers?

  5. #4
    pellegrino is offline Cadillac Owners Member
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    It starts when i start moving

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    It does sound like a compressor just never usto hearing that so its new to me just wanted to make sure it was supposed to be doing that and not that something was malfunctioning

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    the cadillac man's Avatar
    the cadillac man is offline Cadillac Owners Master
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    Quote Originally Posted by pellegrino
    It starts when i start moving ---------- It does sound like a compressor just never usto hearing that so its new to me just wanted to make sure it was supposed to be doing that and not that something was malfunctioning
    Easy way to tell

    Turn the key to run(engine and hvac units off) and you should be able to hear the air shock compressor kick on
    I know I can hear mine with the window down sometimes with the engine running but not every time

  7. #6
    Tylus's Avatar
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    Re: 2002 Escalade EXT mechanical issue

    I had the same thought with my new to me 'lade last week. But then I was crawling underneath and noticed the ride hieght sensors and compressor. Found a few threads on this site about the setup...not worried anymore. luckily my shocks/compressor seem to be in good shape and I only hear the noise every blue moon

  8. #7
    pellegrino is offline Cadillac Owners Member
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    The original owner was telling me that the sound is the traction control and it does it everytime I turn the car on for the first time. Also now i have noticed it has been doing it more often even when I am driving. Anyone have this problem before? I want to know how to fix it im pretty sure it shouldnt be doing that. Also he said he disconnected the air shocks and put regular shocks in would that have anything to do with it? Thanks again

  9. #8
    Tylus's Avatar
    Tylus is offline Cadillac Owners Member
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    Re: 2002 Escalade EXT mechanical issue

    Traction control doesn't make noises. Ever! TC is a strategy the PCM uses to prevent/stop wheelspin by using brakes, ride height, etc

    It does sound like your rear air compressor is pressurizing the rear air lines for those missing shocks. Crawl underneath and see if you have 2 pressure lines that aren't connected to anything. at the very least, those lines should be capped/plugged. If the lines are missing, check the air pump itself to see if the connections are capped/plugged

    there is apparently a conversion kit to go from air-ride to traditional shocks for our cars. hopefully the prior owner did that. do you have any messages on the messenge center?

  10. #9
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    dahubby98 is offline Cadillac Owners Member
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    Re: 2002 Escalade EXT mechanical issue

    You can disconnect the air compressor by removing the relay that is attached to the fuse box. it shoudl not cause the light to come on.

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    I have mine removed right now and the light stays off. Truck rides to high with no load..

  11. #10
    pellegrino is offline Cadillac Owners Member
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    It also feels like the car is being restricted while the compressor is running. What is the fuse labeled so I can try taking it out? Thanks again for all the help

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