2005 D12D weak 2nd stage engine brake

Discussion in 'Volvo Forum' started by 05vnl670, Mar 9, 2014.

  1. 05vnl670

    05vnl670 Light Load Member

    165
    60
    Feb 17, 2013
    0
    I noticed in last couple trips i made mine stage 2 engine brake is weak, almost don't feel any diference from stage one, no fauls in engine, any ideas?
     
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  3. Yogibear

    Yogibear Light Load Member

    64
    24
    Nov 4, 2008
    Bristol, Florida
    0
    You may want to look into having the overhead ran if you have not had it done recently. It should make a difference. Here is a link to the owners manual of a VN and VHD with a D12D : http://www.dmbruss.com/images/Schematics/OM_PV776_20707967_lores.pdf
    REQUIRED:
    Once a year,
    every 130,000 miles,
    (209,000 km) or
    every 2,500 hours,
    (whichever comes
    first)
     
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