Question about 2005 Pontiac Montana SV6

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Rear suspension left side makes a knocking sound while driving

2005 pontiac montana sv6. whenever I go over a speed bump or hit a pot hole the back left side makes a knocking noise. Also when I go over 60 miles an hour the same side starts to shake and it makes a noise.

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  • Anonymous Mar 19, 2014

    shaking whenever I hit a bump

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There are a few suspension parts that can cause knocking noises. Such as swar bar loose, strut mounts going bad. You should really have a shop do a complete suspension check.

Posted on Jun 22, 2009

  • Hitech292002 Nov 06, 2010

    There is a recall on the rear suspension for this van. http://www.internetautoguide.com/auto-re...

  • stephan12 Jun 15, 2011

    i have same problem took it to two shops nothing caint find the noise replaced shocks rear shop check springs gas tank rubber boots check brakes check hub stil caint find it suspension is gd new brakes new tires and shop even but a microphone to record noise loadest noise is close to saybar and rear end but nothing is loose am asking could it be the fuel tank baffles are loose and its banging up and down

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I have also bought a 2005 sv6 longer version and i have have determind the bump on the left rear of my van make a noise like as thoungh the axle where hiting the rubber stoper inside the the coil spring but i have tryed to remake the noise while it is in park and can not i believe it is the a the fuel pump moveing around or the forward and backward dampaning arm some how hits some where when being push or pulled on while going up and down , lol i belive this because only sharp bumps make this noise , any one want to add to this feel free

Posted on May 10, 2012

  • adam lumley May 10, 2012

    i have also bought a 2005 sv6 longer version and i have have determind the bump on the left rear of my van make a noise like as thoungh the axle where hiting the rubber stoper inside the the coil spring but i have tryed to remake the noise while it is in park and can not i believe it is the a the fuel pump moveing around or the forward and backward dampaning arm some how hits some where when being push or pulled on while going up and down , lol i belive this because only sharp bumps make this noise , any one want to add to this feel free

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