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Gravely sound upon acceleration V70-XC70 2007

posted by  Kele on  Mon Jul 14 14:37 CST 2014
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last visit: Mon Jul 14 14:37 CST 2014
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Dad left us his 2007 V 70. His cream puff has 98,000 miles on it and has always been serviced regularly. I asked my guru at the independent Volvo spa to diagnose the gravely sound at low speed acceleration. He said it was nothing. The car has new brakes, new tires, computer alignment and new tie rods or whatever Volvo calls them. The antiskid light sensor will remain unrepaired. The car has an overdrive transmission. What could the sound be? It is a light grinding sound at low speed. It is not effected by turning right or left. I would like to keep the car for the next 50,000 miles. I am not eager to go beyond that as with my 93 940, my 07 T5 AWD.








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    Gravely sound upon acceleration V70-XC70 2007

    posted by  riverbend on  Sat Jul 19 21:56 CST 2014
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    last visit: Wed Oct 22 15:29 CST 2014
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    It is hard to diagnose noises over the internet. The anti-skid warning can be an issue, but it may be relatively easy to diagnose and only moderately expensive to repair. If the light is on, you should have 'normal' brakes. If it goes off you can have all kinds of issues.

    An '07 V70 should not be making light grinding noises at low speed. Gravelly noises are usually bad bearings. A competent mechanic should be able to identify the source of the noise. What does your Volvo Guru say is causing the noise ? It is hard to believe that nothing is making gravelly noises.

    Maybe try another mechanic or even perhaps the dealer, someone who can explain what you are hearing. Saying 'It's nothing' sounds a bit like the Guru is either blowing you off or not taking you seriously. IMHO.

    Did your Dad have the water pump, timing and serpentine belts, idlers, and tensioners replaced yet ?

    Greg







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      Gravely sound upon acceleration V70-XC70 2007

      posted by  Kele on  Fri Jan 18 14:46 CST 2019
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      last visit: Mon Jul 14 14:37 CST 2014
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      Greg,

      A recent check engine light and transmission stumbling forced me to limp the car to the independent garage. The solenoid was replaced and that seems to keep the car in the correct gear - making for smoother up and downshifting. There is reciprocity in the transmission again.

      It also seems to have eliminated the gravelly sound as well as the axle clunk/ping.

      Of course right now we are driving the car in winter. Axle clunk is best heard after a long swim at the lake and you pull out of the park with A/C shut off and the windows down, and then you get to hear the axle clunk in all its full glory.

      kele








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    Gravely sound upon acceleration V70-XC70 2007

    posted by  KlausC on  Mon Jul 14 18:32 CST 2014
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    last visit: Fri Oct 24 10:15 CST 2014
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    The anti-skid light ? If the ABS is not functioning correctly, it could be causing a brake to engage while you give it gas. You mechanic should have checked the error code for the ABS and at least given you a solution.

    This is NOT normal.

    --
    My back feels better when I sit in a Volvo seat








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      Gravely sound upon acceleration V70-XC70 2007

      posted by  Kele on  Wed Jul 16 07:51 CST 2014
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      last visit: Mon Jul 14 14:37 CST 2014
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      Klaus, I will go back to the guru and ask him to check again. The word on the anti skid light was that it was a defective sensor and that the low end fix was to put some black electric tape over the light. I have removed the tape and just clear the message when it says Antiskid something or other.








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        Gravely sound upon acceleration V70-XC70 2007

        posted by  KlausC on  Wed Jul 16 09:22 CST 2014
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        last visit: Fri Oct 24 10:15 CST 2014
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        A bad wheel sensor will really mess up the brakes. Find out which one is the problem and fix it, usually a wiring problem or someone banged it hard and it nolonger points where it should.
        --
        My back feels better when I sit in a Volvo seat








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    Gravely sound upon acceleration V70-XC70 2007

    posted by  Chris Mullet on  Mon Jul 14 15:52 CST 2014
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    last visit: Fri Oct 24 09:08 CST 2014
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    It kinda sounds like pre-ignition (PING). Any chance you got bad gas at the last fill-up? Has the gas been sitting in it for a long time? If the tank is low it might be that filling it with minimum 93 octane will help.








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      Gravely sound upon acceleration V70-XC70 2007

      posted by  Kele on  Wed Jul 16 07:57 CST 2014
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      last visit: Mon Jul 14 14:37 CST 2014
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      The reason for this cars purchase was that it runs on regular gas. And the regular gas we have been getting is always from the same station. I do appreciate having an alternative operational theory though. Maybe the line that it runs on regular gas was just that.







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