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help 2014 Mack

Discussion in 'Canadian Truckers Forum' started by Lion tamer, Jul 26, 2017.

  1. Jul 26, 2017 #1
    Lion tamer

    Lion tamer Bobtail Member

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    Jul 26, 2017
    0
    Looking for any suggestions or if someone else has had similar issues. I have a 2014 Mack mp8 engine with 12 speed automatic transmission when I come to a stop and then try to accelerate I have no power gauges read normal, no rev no movement in rpms then in about 30-40 seconds it goes. Check engine light is on, no lightening bolt. When I get rolling runs great. Nobody seems to know what's wrong. Thanks
     
    Lion tamer, Jul 26, 2017
    Lion tamer, Jul 26, 2017
    #1
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  3. Jul 26, 2017 #2
    orcen

    orcen Heavy Load Member

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    Jun 30, 2013
    Brisbane, QLD Australia
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    throttle position sensor sir
     
    orcen, Jul 26, 2017
    orcen, Jul 26, 2017
    #2
  4. Jul 26, 2017 #3
    Lion tamer

    Lion tamer Bobtail Member

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    Jul 26, 2017
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    Ty for suggestion. will mention to my mechanic
     
    Lion tamer, Jul 26, 2017
    Lion tamer, Jul 26, 2017
    #3
  5. Jul 26, 2017 #4
    orcen

    orcen Heavy Load Member

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    Jun 30, 2013
    Brisbane, QLD Australia
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    does it ever cut out for a few seconds when you're rolling?
     
    orcen, Jul 26, 2017
    orcen, Jul 26, 2017
    #4
  7. Jul 26, 2017 #5
    Lion tamer

    Lion tamer Bobtail Member

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    Jul 26, 2017
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    No once rolling everything is good except check engine light does not go out
    And no code ever comes up
     
    Lion tamer, Jul 26, 2017
    Lion tamer, Jul 26, 2017
    #5
  8. Jul 26, 2017 #6
    Blackshack46

    Blackshack46 Road Train Member

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    Jan 19, 2015
    Playing in the cow manure, PA
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    hill assist engaging too long? or...... do you have minimal power to get rolling but not at normal power.... what is your definition of no power? whats the tach reading, whats it shifting at?

    went back and read your posts again.

    so whenever you stop, 30-40 seconds later you can move the truck?
     
    Blackshack46, Jul 26, 2017
    Blackshack46, Jul 26, 2017
    #6
  9. Jul 27, 2017 #7
    orcen

    orcen Heavy Load Member

    844
    473
    Jun 30, 2013
    Brisbane, QLD Australia
    0
    could be a bad ground
     
    orcen, Jul 27, 2017
    orcen, Jul 27, 2017
    #7
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