What causes the rear shocks to go down and not come back up?
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Suspension, Brakes and Tires Discussion, What causes the rear shocks to go down and not come back up? in Item Specific Cadillac Discussion; My rear shocks were working fine until the day I changed my Battery and Alternator. Now they dont go up ...
  1. #1
    rlowe228's Avatar
    rlowe228 is offline Cadillac Owners Member
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    Arrow What causes the rear shocks to go down and not come back up?

    My rear shocks were working fine until the day I changed my Battery and Alternator. Now they dont go up at all. what could be the problem?

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  3. #2
    adalla is offline Cadillac Owners Fanatic
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    Re: What causes the rear shocks to go down and not come back up?

    Does your air compressor get voltage? Is the related fuse ok?

  4. #3
    stickpony is offline Cadillac Owners Member
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    Re: What causes the rear shocks to go down and not come back up?

    Quote Originally Posted by adalla
    Does your air compressor get voltage? Is the related fuse ok?
    i have the same problem with my '89 eldorado...i changed the alternator, then the rear shocks stopped working.. the fuse was not blown, i replaced it anyways just in case there was a break in the fuse i couldnt see, and nothing...

    my repair manual does not tell me where the test lead to activate the compressor is so i can put a straight 12 volts to it to see if it still works..does anybody know WHERE in th engine bay the test lead is located?

    also, if it does not work, where in the heck is the compressor physically located?

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    stickpony is offline Cadillac Owners Member
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    Re: What causes the rear shocks to go down and not come back up?

    why was this thread moved? it will never get replied to by the people who knwo about it unless its in the 4.XL engien forum

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    Sandy's Avatar
    Sandy is offline Cadillac Owners Master
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    Re: What causes the rear shocks to go down and not come back up?

    ...Mexicans hiding out in the trunk, comin' across the boarder at night.

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    Stoneage_Caddy is offline Cadillac Owners 10000+ Posts
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    Re: What causes the rear shocks to go down and not come back up?

    it should have went to suspension ...what the hell is it doing here ?

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    rlowe228's Avatar
    rlowe228 is offline Cadillac Owners Member
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    Re: What causes the rear shocks to go down and not come back up?

    Yeah there is voltage but still not pumping where is the fuse for it?

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    Re: What causes the rear shocks to go down and not come back up?

    Quote Originally Posted by Stoneage_Caddy
    it should have went to suspension ...what the hell is it doing here ?
    Moved.
    ~Steve

  10. #9
    rlowe228's Avatar
    rlowe228 is offline Cadillac Owners Member
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    Re: What causes the rear shocks to go down and not come back up?

    i found the fuse, I put in a brand new 20 amp in the #12 socket on my 4.9 engine and its still not pumping up. there is current going to the harness, I took a wire and plugged it into the harness and touched metal and it sparked, and I took 2 wires and connected it to the batery, and connected the other end to the compressor and it pumped them up. but when the harness and the compressor is connected nothing happens what gives?

  11. #10
    bigred is offline Cadillac Owners Fanatic
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    Re: What causes the rear shocks to go down and not come back up?

    Not sure about your year & model but almost all GMs feed the air compressor through a relay.

    It is extremely common when a car is driven with a failed alternator for these relays to burn up as more & more current flows through the relay as the voltage drops. Relays are cheap & easy to replace. Hope that's your case rlowe.

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