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This thing buzzes like a mad bastard

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    #1

    This thing buzzes like a mad bastard


    Every time the car is started. It goes for about a minute and a half and then stops.

    1) What is it?
    2) Why is it buzzing like that?
    3) Is it a big deal, or just a buzzing sound that can be safely ignored?

    1991 Grand Marquis, EFI 5.0
    Tags: None
    #2
    Well duh. It's an air compressor. Does your ass end sit on the ground? Does it still have air suspension in the back?
    Builder/Owner of Badass Panther Wagons

    Busy maintaining a fleet of Fords

    Comment

      #3
      It's pretty much level front to back. As far as I know the suspension is stock. And it didn't do this last time I borrowed it a few months ago.

      Comment

        #4
        Also since this is a suspension part I guess I should delete this thread or maybe someone can move it.

        Comment

          #5
          THAT IS THE LOAD LEVELING compressor. it turns on every time you start the car so it holds pressure as you drive.

          1982 Lincoln Continental Mark VI Bill Blass Designer Series 2-Door(Larisa)          -Mods: HO Roller 302, GT40P Heads, Explorer Intakes, HO ECM(D9S), Autodimming w/compass and outside temp rearview mirror, Daniel Stern Lighting Mod, Dual Exhaust, 90's GM C/K Series Retractable Hood Light, Red Digital Dash Display, 92-94 White Leather Town Car Signature Cupholder Armrests, HPP Wheels, Police PS Cooler, Police Trans Cooler. More to come!!!!
          1998 Ford Explorer Limited 5.0 AWD(Fiona)-Mods: Lincoln Navigator THX Audio System, Ford Explorer Sport Instrument Cluster.

          Comment

            #6
            it's the load leveling compressor it turns on everytime you start the car to ensure you have the right amount of air at all times during driving.

            1982 Lincoln Continental Mark VI Bill Blass Designer Series 2-Door(Larisa)            -Mods: HO Roller 302, GT40P Heads, Explorer Intakes, HO ECM(D9S), Autodimming w/compass and outside temp rearview mirror, Daniel Stern Lighting Mod, Dual Exhaust, 90's GM C/K Series Retractable Hood Light, Red Digital Dash Display, 92-94 White Leather Town Car Signature Cupholder Armrests, HPP Wheels, Police PS Cooler, Police Trans Cooler. More to come!!!!
            1998 Ford Explorer Limited 5.0 AWD(Fiona)-Mods: Lincoln Navigator THX Audio System, Ford Explorer Sport Instrument Cluster.

            Comment

              #7
              Can it be lubricated to reduce the noise? That looks a bit like a grease fitting on the left part.

              Comment

                #8
                That's normal, they make noise, just deal with it.

                Comment

                  #9
                  Can't hurt to grease it, if that's an actual grease fitting and not a shrader valve. Could have a broken line somewhere that's making it run constantly.
                  Builder/Owner of Badass Panther Wagons

                  Busy maintaining a fleet of Fords

                  Comment

                    #10
                    If it only goes for a minute or so don't worry about it.
                    sigpic


                    - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                    - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                    - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                    Comment

                      #11
                      Originally posted by 86VickyLX View Post
                      That's normal, they make noise, just deal with it.
                      As long as it's not a sign of impending suspension collapse, I am fine with this solution.

                      Comment

                        #12
                        Originally posted by mrltd View Post
                        Can't hurt to grease it, if that's an actual grease fitting and not a shrader valve. Could have a broken line somewhere that's making it run constantly.
                        Me thinks it's a shrader valve.

                        Comment

                          #13
                          Originally posted by sney View Post
                          As long as it's not a sign of impending suspension collapse, I am fine with this solution.



                          Nope, and they generally don't collapse like that. They'll develop a slow leak and sag when it's shut off, then sag more and more...will usually still work fine when the compressor runs though. Eventually they won't hold air at all, but I don't think they'll blow out or anything unless you do some pretty crazy driving.
                          sigpic


                          - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                          - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                          - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                          Comment

                            #14
                            Originally posted by 86VickyLX View Post
                            Me thinks it's a shrader valve.
                            It's a shrader valve. Oh well. At least I can safely ignore the noise.

                            Comment

                              #15
                              Thanks for the assistance, everyone.

                              Comment

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