Question about 2000 GMC Jimmy

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Rear Air Shock Problems for 2000 Jimmy Diamond Edition

We have problems with rear air shocks or air lines. The car sits a little high in the rear. The air compressor runs almost constantly. The shocks are wet. I can't tell much about the air lines. What do I need to solve, new shocks, new air lines or both.

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We do not know of any way to by-pass the pump for your air shocks. The problem may be the air shocks themselves are leaking and need to be replaced. When one air shock is bad, the likelihood that the others are close behind is high. Therefore, changing all four units while you have the car in is generally good practice. If you want to replace the one bad shock, just be aware that you will probably have to replace the other three very shortly thereafter.

Posted on Dec 13, 2008

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There is a sensor in the rear suspension, it is called a ride height sensor, it will have an arm connected to the suspension that moves up and down with the suspension, this tells the control module to turn on the air pump to level the suspension, it may be defective.

Posted on Dec 13, 2008

  • yadayada
    yadayada Dec 13, 2008

    Any shock that has oily wetness is in need of replacement.

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  • Master
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Hi there
Take a look at this PDF :

http://www.gmcpc.org/archive/air_suspension.pdf

this will give you an idea of how to adjust height or replace the air shocks on your GMC model

kind regards

Posted on Dec 13, 2008

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Removal & Installation

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    0900c152802427b0.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Use support bracket tool J-23028-01 mounted on a jack to support the rear lower control arm
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    0900c152802427e1.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Remove the cover to gain access to the upper shock absorber mounting components-rear suspension


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