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Volvo 2007 with d12d very poor acceleration

Discussion in 'Volvo Forum' started by -sammie-, Sep 23, 2014.

  1. Sep 23, 2014 #1
    -sammie-

    -sammie- Bobtail Member

    4
    0
    Jun 3, 2013
    0
    From 2 years i have problem with my truck. Spend thousands of thousand dollars and so many hours in Volvo dealers and others garages. Truck don't have full acceleration, poor fuel consumption lack of power. I change so many thing all sensors, fuel pump, injectors harness, acceleration pedal, fuel line fittings, injectors.
    After this time i'm sure I don't have enough fuel in moment of acceleration because is no any smoke, my turbo temp is max ~500 deg, fuel pressure is at 1500 rpm 70 psi, turbo pressure easy 35psi. no any fault codes. Maybe someone have idea where to look for solution?
     
    -sammie-, Sep 23, 2014
    -sammie-, Sep 23, 2014
    #1
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  3. Sep 23, 2014 #2
    xsetra

    xsetra Road Train Member

    4,921
    6,573
    Aug 21, 2011
    0
    Fuel line. You may have enough pressure but do you have enough volume. Good luck
     
    xsetra, Sep 23, 2014
    xsetra, Sep 23, 2014
    #2
  4. Sep 23, 2014 #3
    -sammie-

    -sammie- Bobtail Member

    4
    0
    Jun 3, 2013
    0
    I'm change o ready fuel filter bracket, make bypass water separator, install separate gauge cylinder on head cylinder inlet fuel line
     
    -sammie-, Sep 23, 2014
    -sammie-, Sep 23, 2014
    #3
  5. Sep 23, 2014 #4
    v6killer

    v6killer Medium Load Member

    446
    121
    Dec 6, 2010
    ChicagoLand
    0
    It has been mention a couple times here, replace the boost map sensor that sits on top the Intake manifold on the driver-side. Needs to be replace every 400k to 500k when it goes bad, so dose your fuel milage. For some drivers
     
    v6killer, Sep 23, 2014
    v6killer, Sep 23, 2014
    #4
  7. Sep 23, 2014 #5
    -sammie-

    -sammie- Bobtail Member

    4
    0
    Jun 3, 2013
    0
    replaced this
     
    -sammie-, Sep 23, 2014
    -sammie-, Sep 23, 2014
    #5
  8. Sep 23, 2014 #6
    v6killer

    v6killer Medium Load Member

    446
    121
    Dec 6, 2010
    ChicagoLand
    0
    How many miles are on the truck?
     
    v6killer, Sep 23, 2014
    v6killer, Sep 23, 2014
    #6
  9. Sep 23, 2014 #7
    -sammie-

    -sammie- Bobtail Member

    4
    0
    Jun 3, 2013
    0
    1800000km and all parameters is ok
     
    -sammie-, Sep 23, 2014
    -sammie-, Sep 23, 2014
    #7
  10. Aug 16, 2016 #8
    DAGWOOD

    DAGWOOD Bobtail Member

    5
    1
    Dec 12, 2011
    MINNEAPOLIS
    0
    THE EXHAUST BRAKE MAY BE STICKING, OR THE PRESSURE REGULATOR IS NOT WORKING PROPERLY. EGR VALVES WORKING PROPERLY?
     
    DAGWOOD, Aug 16, 2016
    DAGWOOD, Aug 16, 2016
    #8
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