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  1. S

    2008 Denali "Service Suspension System" message

    I actually did run into this when installing the new shocks and my dash lit up with ABS warnings as well as Traction Control warnings. I got under the car again last night and checked all the connections, all connections are good and plugged in. I'm afraid at this point I might be making another...
  2. S

    2008 Denali "Service Suspension System" message

    So I jumped the ALC relay pins 30 to 87 (YouTube link below showing how) and the compressor works and now there is some pressure in the air bladders. Still receiving the intermittent Service Suspension System on the dash. https://www.youtube.com/watch?v=0ub_AdR7pTY
  3. S

    2008 Denali "Service Suspension System" message

    Is there a way to test the Compressor before I go out and buy a new one?
  4. S

    2008 Denali "Service Suspension System" message

    The shock bladders are not firm. Would the bags inflate if there was no load on the vehicle causing the compressor to switch on?
  5. S

    2008 Denali "Service Suspension System" message

    The Service Suspension System msg only comes on intermittently with no real rhyme or reason for doing so. I have not heard the compressor come on but have been the only one in the truck since replacing the rear shocks and have not had any weight in the vehicle.
  6. S

    2008 Denali "Service Suspension System" message

    I was receiving a "Service Suspension System" message on the dash of my 2008 Yukon Denali for a while, I took it into the dealer who said that I needed to replace the rear shocks and wanted $1200 for it. I decided to replace the shocks myself with the Arnott AS-2708 re-manufactured shocks...

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