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  • Bad vibrations

    When traveling with my "new" Prado 90 at speeds higher than 100 km/h a vibration starts to make itself felt. At 120 km/h (75 m/h) it is quite worrying. When I lift my foot from the accelerator, it is more clearly felt than under acceleration. As speed rises it becomes less severe and at 160 km/h (100 m/h) it is almost gone. It is not a high frequency vibration (more like brrrrr than zzzzzz) that is not felt only in the steering wheel, but in fact more through the car's body. SWAMBO sitting next to me also felt it. Could it be the propshaft? There is about 3 - 5 deg of play if one turns the propshaft by hand. Car standing still, of course. :wink:

    The play I spoke of is at the output from the transfer case and the input to the rear diff, does that mean anything? No play to be felt or seen at the rear shaft's u-joints, but at the front of the t/f box there's an oil leak and a little lateral play, more felt than seen. Almost no circular play and none in the u-joints.
    LouisF
    Junior Member
    Last edited by LouisF; 11-02-2014, 01:26 PM.

  • #2
    if the vibration is not felt during high load low speed pull from start and present at high speed, then could be propshaft. I would still have the engine mounts and bushings checked.

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    • #3
      Most likely the rear prop UJ that needs replacing - they normally start vibrating from about 60-65mph when the UJ starts wearing. Otherwise it could be wheel balancing or a dodgy tyre (less likely).
      95 3.0 Camp Car, 150 V6 Daily Driver[SIZE=4]
      [/SIZE]

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