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  • Some minor problems: help..??

    The Prado went in to see the doctor today as per my other post viewtopic.php?f=16&t=7430&p=107212#p107212

    Apart from the above, I also took it in with complaints of odd noises and wanted it checked out.

    They found that the bearing of the idler pulley is shot and needs replacing. They must have detected a noise in the engine bay. I've been thinking that my Prado sounds a bit like Herbie (you know, the Vee-dub car). can anyone confirm whether this noise is caused by not so healthy bearings?

    I can also hear faint thumping noise from the rear, when the car has come to a stop after hard braking. They reckon that the discs were not machined after new pads. I told them that the fronts were machined as soon as I picked up the car 7 months ago as the steering was vibrating when I braked, but no machining was done to the back. Again, can someone confirm this diagnosis?

    The last noise complaint is random scratching noise coming from under the steering column and transmission tunnel. This occurred after I greased the tailshaft. I thought at first that the noise was the grease being flung out of the uni joints and slide yoke. However, when I stopped at the lights, the scratching noise is still there. It seems to happen when the engine is warmed up. They are still checking this out. Anyone can guess what this might be?

  • #2
    Dook dook dook noise from the rear

    I've got the car back from the dealer and the random scratching noise seems to have gone but I'll drive around for about a week before putting the noise to the idler pully bearing.

    As for the thumping noise coming from the back, it is like a "dook dook dook dook dook dook" sound. The diagnosis is that this is a known problem for the V6 Prados and is due to the fuel tanks. It occurs when the tanks are full until about 20L left at which point the noise goes away. I don't think I've ever let the fuel tank get down that low to test this theory. Dealer says that the noise does not affect the performance of the car.

    I've read 2 "noisy" threads and my noise does not seem to be related to those threads
    Thump noise when stopping
    Fuel Tank Noise Gurgling under breaking

    Does anyone have any further clues regarding the noise?

    Comment


    • #3
      Re: Some minor problems: help..??

      Their is a thread about the fuel tanks, do a search it should come up.
      [b]Rob[/b]

      [b]2016 Toyota Hilux SR5 D4D Auto Company Cruiser... [/b].
      [url=http://www.pradopoint.com/showthread.php?23866-Hutch-s-2012-150-GXL-V6-petrol-Auto]Hutch's 2012 Build up[/url]
      [SIGPIC][/SIGPIC]

      Comment


      • #4
        Re: Some minor problems: help..??

        The idler pulley bearing was the subject of a recall by Toyota. Should be replaced under this recall.
        I believe the thump was due to the lubrication of the drive shaft, however, I believe that if there is a noise, there IS a problem and sould be fixed.
        Sold the Prado. Now FJ Cruiser

        Comment


        • #5
          Re: Dook dook dook noise from the rear

          Originally posted by amts
          As for the thumping noise coming from the back, it is like a "dook dook dook dook dook dook" sound. The diagnosis is that this is a known problem for the V6 Prados and is due to the fuel tanks. It occurs when the tanks are full until about 20L left at which point the noise goes away. I don't think I've ever let the fuel tank get down that low to test this theory. Dealer says that the noise does not affect the performance of the car.

          Does anyone have any further clues regarding the noise?
          Mine dosen't do this.

          Comment


          • #6
            Re: Some minor problems: help..??

            Originally posted by Jon
            The idler pulley bearing was the subject of a recall by Toyota. Should be replaced under this recall.
            I rang Toyota headoffice and there are no recalls or CSEs associated with the VIN of my Prado.


            I believe the thump was due to the lubrication of the drive shaft, however, I believe that if there is a noise, there IS a problem and sould be fixed.
            The noise from the rear is not (at leat I think it is not) the tailshaft clunk/thump that is mentioned in the other threads (which felt like somebody hitting the car from the back).


            Originally posted by HGMonaro
            Mine dosen't do this.
            I'm running the fuel tank down to see if the noise is still there when it is near empty.

            As for the random scratching noise under the steering column, I've narrowed it down to the aircond fan as it is developing a somewhat repetitive frequency to it. When it does occur and I switch the fan off, the noise slowly dies away. I think some leaves may have got sucked into the vent.

            Comment


            • #7
              Re: Some minor problems: help..??

              I had the problem with the fuel tank after going around a corner. I believe that the internal float breaks off its mount and then becomes unstable. When you stop and the fuel is sloshing around in the tank the float goes donk donk donk. If your vehicle is under warranty I would be asking for a new fuel tank.
              I have heard of leaves being found in the bottom of the aircon fan assy. Apparently you can access it by removing the panel under the glove box. You can access the aircon filter here also.

              Regards
              Doug
              2018 150 Series Crystal Pearl Prado VX 2.8l. 2 inch King springs and Bilstein shocks, Airtek TJM snorkel.

              Comment

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