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  • High Pitched Whine When Idling

    I noticed yesterday that my 3.0L D4D has developed a high pitch whine that only shows itself when idling. I have a video, but will have to wait until Im home to upload it.
    It almost sounds like a fan belt, but its more mechanical than that..not so much a squeak but a whine.
    Does anyone know what this might be, or has anyone experienced this?
    Should I be concerned?

    Cheers,

    Spilsy
    [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
    [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

  • #2


    Heres a very short snippit of the video.
    [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
    [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

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    • #3
      It is only a guess but the high pitch ring noise suggests to me to check
      the idler pulleys on the fan belt etc.
      HKB Electronics, manufacturer of the Alternator Voltage Booster, Silver 2008 D4D,Lifted,Underbody protection, Alternator Voltage Booster, Tiger Z winch, Lightforce DL, Air Horns, Tanami Drawers, Drop down fridge slide, Outback cargo barriers, Rotronics dual Battery system, Polaris GPS, HF/UHF/VHF, Radio speaker combiner, Long ranger water tank, Diff breathers, Inverter, Snorkel and others

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      • #4
        Any guidance on how I might do this, or a direction on where to find the guidance??

        Cheers.
        [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
        [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

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        • #5
          If you look at the drive belt, I'm assuming it is te same as the 120 in that
          you have one big serpentine belt, you'll see the belt goes round the alternator
          drive pulley the airconditioner pulley, power steering etc, there is probably also
          a couple or more smaller pulleys that just guide and or tension the belt.

          You need to get a length of garden hose or a stick etc something to funnel
          the sound put the end of the hose near each pulley or the stick on the mounting
          bolt of each pulley and hold the other end against your ear (like a stephyoscope)
          and try and isolate the sound to one etc.

          Obviously be careful not to get caught up in the engine fan!
          HKB Electronics, manufacturer of the Alternator Voltage Booster, Silver 2008 D4D,Lifted,Underbody protection, Alternator Voltage Booster, Tiger Z winch, Lightforce DL, Air Horns, Tanami Drawers, Drop down fridge slide, Outback cargo barriers, Rotronics dual Battery system, Polaris GPS, HF/UHF/VHF, Radio speaker combiner, Long ranger water tank, Diff breathers, Inverter, Snorkel and others

          Comment


          • #6
            Originally posted by LeighW View Post
            If you look at the drive belt, I'm assuming it is te same as the 120 in that
            you have one big serpentine belt, you'll see the belt goes round the alternator
            drive pulley the airconditioner pulley, power steering etc, there is probably also
            a couple or more smaller pulleys that just guide and or tension the belt.

            You need to get a length of garden hose or a stick etc something to funnel
            the sound put the end of the hose near each pulley or the stick on the mounting
            bolt of each pulley and hold the other end against your ear (like a stephyoscope)
            and try and isolate the sound to one etc.

            Obviously be careful not to get caught up in the engine fan!
            My grandfather tried this with a 1 inch square piece of timber on Mum's commodore many years ago...it did get caught, and threw the belt off...thankfully not breaking it

            Just as further info, the noise disappears completely when I touch the throttle...
            [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
            [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

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            • #7
              A similar way to do this, but much easier is to get one of those long screw drivers, place it on the nut on the centre of the pulleys that keeps them in place, and then put your ear to the end of the screw driver.
              You can hear the bearing noise of each of the pulleys & youll be able to easily pinpoint which one is making the most noise.

              Of course, dont put the screwdriver on the nut of the crank pulley......

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              • #8
                I've had that exact noise. Mine turned out to be the exhaust. I sprayed a bit of WD40 on the connection around about the underside of the car around the area of the drivers seat. Looks like where 2 pieces of exhaust connect together with some spring looking things.

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                • #9
                  Originally posted by JimmyC View Post
                  I've had that exact noise. Mine turned out to be the exhaust. I sprayed a bit of WD40 on the connection around about the underside of the car around the area of the drivers seat. Looks like where 2 pieces of exhaust connect together with some spring looking things.
                  Well thats a thought that came from left field...I hadn't even thought that the exhaust would make such a noise. I will be looking to check it out over the weekend, both the pulleys and now the exhaust...If I cant find anything, Benalla Toyota will get some more work.
                  [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
                  [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

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                  • #10
                    Yeah I thought it was the belt too. Mine only made the noise at idle and would stop briefly at even the slightest change of RPM while idling but then it would start again. I was able to test it by putting some pressure on the exhaust which stopped it shaking which stopped the noise.
                    There is probably a better solution than wd40 but I only have to do it every 4 months-ish so it's no big deal.
                    Here is a picture of the exhaust part I'm talking about (not my image)
                    http://s7.postimg.org/o2v8obkx7/85682175.png

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                    • #11
                      Originally posted by Spilsy View Post


                      Heres a very short snippit of the video.
                      Turn the car up the right way, that should improve oil dispersion and stop the oil pick up slaving thereby reducing the whining.
                      [B][COLOR=blue]Bitumen: A blatant waste of taxpayers money![/COLOR][/B]
                      [URL="http://www.pradopoint.com/viewtopic.php?f=38&t=12197&start=0&st=0&sk=t&sd=d"]My rig buildup[/URL] [URL="http://www.pradopoint.com/album.php?albumid=141"]Mundaring Power Lines Jan 01[/URL] [URL="http://www.youtube.com/watch?v=KuQmi3Tgoe0&feature=feedu=d"]You Tube Video Morgan Quarry[/URL]

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                      • #12
                        Originally posted by MidLifeCrisis View Post
                        Turn the car up the right way, that should improve oil dispersion and stop the oil pick up slaving thereby reducing the whining.
                        The car is the right way up. Youtube, being run in the northern hemisphere, has inverted it to compensate for the fact we are in the southern hemisphere.
                        [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
                        [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

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                        • #13
                          Originally posted by JimmyC View Post
                          Yeah I thought it was the belt too. Mine only made the noise at idle and would stop briefly at even the slightest change of RPM while idling but then it would start again. I was able to test it by putting some pressure on the exhaust which stopped it shaking which stopped the noise.
                          There is probably a better solution than wd40 but I only have to do it every 4 months-ish so it's no big deal.
                          Here is a picture of the exhaust part I'm talking about (not my image)
                          http://s7.postimg.org/o2v8obkx7/85682175.png
                          I had a feeling that was the part you were referring to.
                          [B]Spilsy[/B] - [I]Today is the tomorrow you were shitting yourself about yesterday[/I] - Billy Thorpe
                          [B][URL="http://www.pradopoint.com/showthread.php?30269-Spilsy-s-2013-White-GXL-Build-Up&p=445756&viewfull=1#post445756"][COLOR="#800080"]2013 Turbo Diesel GXL[/COLOR][/URL][/B]

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                          • #14
                            Sorry to dig up an old thread but I have the same noise. Spilsy did this turn out to be the exhaust? Would have PM'd but inbox is full.

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                            • #15
                              G'day spilsy. Had the exact same thing with my 2011 GX. Before getting too stressed, have a look at the rubber mounts and springs at the cinnections for your exhaust. Theyre pretty much in line with the drivers door handle. Attached is an image of where the noise was coming from on my car. I hit it with some wd40 which stopped it immediately.

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