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Thread: vibrating noise when turning left/right

  1. #1
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    Default vibrating noise when turning left/right

    ok guys hope someone can shed a bit of light on the prob ive got

    ive got vectra c on an o2 plate the prb is,
    when the car is stationary and you turn the sterring wheel
    to full lock,either left or right .
    there is a vibrating noise coming from under the bonnet

    and it seams to be getting worse, hope someone can point me in the right direction,
    or its off to the garrage


    cheers in advance

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    First thing to do is check level and condition of power steering fluid - what colour is the fluid? If it's black, needs replacing.

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    Regular Member m8internet's Avatar
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    From memory, the power steering on the Vectra C is an electrically assisted system
    Try this, with the engine running
    Have someone sit in the drivers seat
    With the bonnet up, ask them to slowly turn the steering to the nearside (anti-clockwise)
    Once it reaches the end of the travel, wait about 10 seconds
    Now, ask them to turn the steering in the opposite direction, again to the end of travel
    Again, wait 10 seconds

    Whilst they are doing this watch and listen
    There may be an increase in revs whilst they turn the steering wheel, which then drops back to normal when the steering motion stops, hence the 10 second gap

    If the noise is coming is coming from somewhere other than the engine, then ask them to repeat the process whilst you try to find out where it is coming from

    Another pointer can be to put on all the lights (including full beam, fog lights, etc) and electrical accessories
    Again, as the steering is turned the lights should dim, extremely noticeable at night
    If this becomes excessive then this suggests either alternator or power steering pump is near to failure

  4. #4
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    ok will give it a go cheers

  5. #5
    Regular Member glynn's Avatar
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    if it the pump then it is under the drivers headlight behind the bumper so you will have to remove the bumper to get excess to it
    if the fluid is low then you will need to get central hydrulic fluid and will cost about £10 for a ltr HTH m8 and good luck sourcing the problem

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    dont sit and turn the steering while stationary , I kno you need to sometimes , ie parking etc .
    this only puts extra strain on the steering pump , altinater etc .

  7. #7
    Regular Member m8internet's Avatar
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    Providing you're not sitting doing it all the time, then it is only for testing purposes
    There are several other tests you can do on a car, also which aren't recommended during normal driving

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