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Airride problem...i'm stuck on solutions

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  • Airride problem...i'm stuck on solutions

    Hey guys,

    After so much giving back to the community I am finally in need of some help/ideas here. I have tried everything that i could possibly think of and i'm still coming up stumped!

    SHORT STORY
    Car starts, e-level works, compressors don't kick on.

    What i have tried/results

    Tried: Tried to replace relays with others i had kicking around
    Result: Still doesn't work
    Means: Relays are still in good working condition

    Tried: jumpering the relays from a 12V source from battery/rear distribution block
    Result: Solenoid clicked and activated LED (green light shows coil activation on these solenoids)
    Means: Relays are not the issue

    Tried: since all the relays are working i tested the actual output from the e-level ECU by turning all the switches on with demand
    Result: All solenoids clicked/activated
    Means: Solenoid circuits are working

    Tried: Checked all fuses
    Result: All fuses good, i also have a voltmeter attached to the rear distribution block that reads 13V with car off
    Means: Fuses are all fine

    Now since the solenoid circuit is good and working there has to be a problem with the power circuit, by means of deduction.

    Tried: regrounding all compressors with a set of booster cables. Grounded the vibration isolating frame to the rear tow hook where i scraped away paint and primer
    Result: Compressors still didn't kick in
    Means: Grounding should not be the issue

    Tried: Also had to try regrounding the main ground wire
    Result: Undid grounds and reattached, still not working
    Means: Grounds should be fine

    Thought at this point that there is something wrong between the compressors and the distribution block, but not the relay because i checked that.

    Tried: Tried powering the compressors (each one at a time) straight from the distribution block that reads 13V
    Result: Still nothing
    Means: Compressors seem to be ****ed

    At this point it seems that all 3 compressors kicked the dust at exactly the same time. Tell me how unlikely that is

    Anybody else have any thoughts or ideas to try? I can still get around because my e-level is set to 200psi and i can fill it up at home with my other compressors.

    Just seems like something fishy is up


  • #2
    Re: Airride problem...i'm stuck on solutions

    Sounds like it could be a broken/pinched wire...and yeah, unless you had a massive power surge, all 3 compressors wouldn't fail simultaneously.
    Maybe a continuity test?
    Last edited by Geobmx4life; 05-19-2012, 12:43 PM.
    Hers 2009 Audi A4 6sp manual
    Mine....2005 Golf TDI, VNT 17, Malone tuned stage 4, Spec stage 2 clutch, FMIC, Ventectomy, NewSouth gauges, BuzzKen 2.5 turbo back exhaust, Evolution Skidplate, Helix OEM Reps retrofitted with Morimoto Bixenon mini's, ST coils, colour matched Huffs. Frostheater

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    • #3
      Re: Airride problem...i'm stuck on solutions

      Thing is i have only been using 2 compressors lately, and all 3 of them don't even work when i connect them straight to another car battery....i'm going to look at the AZ manual

      Comment


      • #4
        Re: Airride problem...i'm stuck on solutions

        Might be a stupid question, but when you hook up the power to another battery are you also hooking up the ground to that battery? Is it fully charged?

        I really doubt that all 3 comps f-d up at the same time but it's very strange that they would just stop working after a month and not have a relay/fuse/ground not be the problem.

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        • #5
          Re: Airride problem...i'm stuck on solutions

          Yes i did try hooking up the compressor just straight to a battery. Nothing :( unless some wiring has gone internally....

          Comment


          • #6
            Re: Airride problem...i'm stuck on solutions

            What are your switches in the ashtray connected to? Ground or ignition?

            Also, what point are you using for ignition? Any other symptoms other than the air ride?

            Edit: nvrmind. If it had something to do with the ignition your elevel system wouldnt be working and the solenoids wouldnt kick in.

            George might be right with a power surge causing the motors to fry, still unlikely but you may have to take it apart to find out :(
            Last edited by Slamtastic; 05-19-2012, 01:23 PM.

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            • #7
              Re: Airride problem...i'm stuck on solutions

              Think i got something here, since i grounded my compressors to my frame (no sanding or means of grounding except bolted together) and then from another part of the frame to the car. Think overtime there may have been some aluminum oxidation that formed inbetween the angle's that is preventing a good ground. Power circuit is measuring straight from the compressor tie in so power circuit is good. Compressor is working if you undo all the connections and attach it to the battery (before i was grounding the car battery to the frame, not to the actual ground on the compressor).

              Comment


              • #8
                Re: Airride problem...i'm stuck on solutions

                So i figured out what the problem was

                I would never have guessed it would happen so quickly though! Aluminum oxide. SOAB

                Why it happened: So what i did when i was grounding the compressors is that i grounded them all to the back angle iron on the vibration frame, and then i grounded the frame to the sheet metal of the car. Aluminum conducts electricity. However i didn't even think that with the amount of electricity that is going through there and the atmospheric conditions that on the rear corner of the frame (pictured below) there would be aluminum oxide forming between the two metal surfaces, insulating the pieces of the frame from each other and making me lose my ground.

                The fix: I added additional ground wires from the ground on the compressors to the main ground wire, basically parallel to the frame. Works like a charm. Thanks everybody for the discussions! Hopefully this comes in handy for somebody in the future :thumbup:

                Comment


                • #9
                  Re: Airride problem...i'm stuck on solutions

                  Glad you figured it out Sean...oh an I PM'd you.
                  Hers 2009 Audi A4 6sp manual
                  Mine....2005 Golf TDI, VNT 17, Malone tuned stage 4, Spec stage 2 clutch, FMIC, Ventectomy, NewSouth gauges, BuzzKen 2.5 turbo back exhaust, Evolution Skidplate, Helix OEM Reps retrofitted with Morimoto Bixenon mini's, ST coils, colour matched Huffs. Frostheater

                  Comment


                  • #10
                    Re: Airride problem...i'm stuck on solutions

                    Nice to see you found your problem. You could try some dielectric grease at your grounding points to help reduce/eliminate the buildup of corrosion.
                    GT3071R and more...

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                    • #11
                      Re: Airride problem...i'm stuck on solutions

                      Nice to see it was a simple fix!

                      Comment


                      • #12
                        Re: Airride problem...i'm stuck on solutions

                        The commercial angle you are using may be anodized which is not conductive. http://en.wikipedia.org/wiki/Anodizing
                        Jeff
                        Current: 2017 Audi A4 2.0T Quattro S-Line
                        Previous: 2007 Audi A4 2.0T Quattro S-Line, 2001 VW Jetta

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                        • #13
                          Re: Airride problem...i'm stuck on solutions

                          Originally posted by sabbySC View Post
                          Nice to see you found your problem. You could try some dielectric grease at your grounding points to help reduce/eliminate the buildup of corrosion.
                          Dielectric grease is actual an insulator, not a conductor as most people think it is. If you have metal/metal contact then putting the grease AROUND the connection will help to prevent any buildup of corrosion. If you put it between the connections it will not ground properly.

                          Originally posted by FlyBoy View Post
                          The commercial angle you are using may be anodized which is not conductive. http://en.wikipedia.org/wiki/Anodizing
                          And I'm pretty sure that this isn't anodized. It was conductive for 1 1/2 months up until last night. And when i took apart the frame you could actually see a buildup of oxide.

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                          • #14
                            Re: Airride problem...i'm stuck on solutions

                            Originally posted by MechEngg View Post
                            Dielectric grease is actual an insulator, not a conductor as most people think it is. If you have metal/metal contact then putting the grease AROUND the connection will help to prevent any buildup of corrosion. If you put it between the connections it will not ground properly.
                            I know this, and that is exactly why it will work to reduce/eliminate any corosion at your grounding points.
                            GT3071R and more...

                            Comment


                            • #15
                              Re: Airride problem...i'm stuck on solutions

                              Bare aluminum makes a poor conductor. I wouldn't ground anything through that frame. Just bypass it and go straight to the car chassis ground.
                              Name: Brent
                              His: '04 TDI Golf Mods: None If it's smoken it ain't broken
                              Family: '15 Jetta Sportwagon
                              Fun car: '92 Blue Karmann Crabby Cabby Mods: Coils, front and rear swaybars, LED interior lights and some other old things.

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