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Detroit 60 series chugging

Discussion in 'Freightliner Forum' started by PurpleLizzardNinja, Aug 30, 2011.

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  1. Aug 30, 2011 #1
    PurpleLizzardNinja

    PurpleLizzardNinja Bobtail Member

    1
    0
    Aug 30, 2011
    0
    I drive a Freightliner with a Detroit 60 series. It has been chugging. The RPMs dive down to about 3500 and shoot up to about 7000 over and over again. It is at the Freightliner shop now. They replaced two sensors. One is to the turbo and the other I believe is part of the air intake system. It did not resolve the problem. They did a computer diagnostic test to determine which sensors to replace. But when they started up back up again, it still had the same problem. They ruled out problems with the injectors, fuel filters and there is not water in the fuel tanks. They have been trying to troubleshoot with the techs from Detroit. But nothing as of yet. Any suggestions would be much appreciated. Thank you.
     
    PurpleLizzardNinja, Aug 30, 2011
    PurpleLizzardNinja, Aug 30, 2011
    #1
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  3. Aug 30, 2011 #2
    BJnobear

    BJnobear Heavy Load Member

    969
    306
    Aug 24, 2010
    PCB, FL
    0
    TPS sensor?
     
    BJnobear, Aug 30, 2011
    BJnobear, Aug 30, 2011
    #2
  4. Aug 30, 2011 #3
    Hanadarko

    Hanadarko Independent Owner/Operator

    2,970
    934
    Oct 1, 2009
    Midwest
    0
    HUH ? :biggrin_25524:
     
    Hanadarko, Aug 30, 2011
    Hanadarko, Aug 30, 2011
    #3
  5. Aug 30, 2011 #4
    BJnobear

    BJnobear Heavy Load Member

    969
    306
    Aug 24, 2010
    PCB, FL
    0
    #### How did I read that and not see it!!!!

    7k on a 4k engine?

    :biggrin_25524::biggrin_25524:

    Hell I have a Ford 460 and I get nervous anytime I see 6200 on the tach!
     
    BJnobear, Aug 30, 2011
    BJnobear, Aug 30, 2011
    #4
  7. Sep 30, 2011 #5
    3rd Gen Driver

    3rd Gen Driver Light Load Member

    134
    25
    Jun 6, 2010
    SC
    0
    Tow it to the nearest Detroit dealer and stop waisting time/ money w/ Freightliner.
    You'd be back on the road by now.
     
    3rd Gen Driver, Sep 30, 2011
    3rd Gen Driver, Sep 30, 2011
    #5
  8. Oct 1, 2011 #6
    slisetski

    slisetski Bobtail Member

    9
    2
    Oct 1, 2011
    Sacramento, California
    0
    Hey PurpleLizzardNinja, did you find out what was going on with your engine? I have a same problem on a 2009 cascadia series 60 engine.
     
    slisetski, Oct 1, 2011
    slisetski, Oct 1, 2011
    #6
  9. Oct 2, 2011 #7
    slisetski

    slisetski Bobtail Member

    9
    2
    Oct 1, 2011
    Sacramento, California
    0
    What does a TPS sensor do?
     
    slisetski, Oct 2, 2011
    slisetski, Oct 2, 2011
    #7
  10. Nov 27, 2011 #8
    Flightline

    Flightline Road Train Member

    2,345
    1,167
    Oct 1, 2011
    Almost There
    0
    Throttle Postion sensor. Tells computer how much your pushing down on throttle.
     
    Flightline, Nov 27, 2011
    Flightline, Nov 27, 2011
    #8
  11. Jan 5, 2012 #9
    The Twilight Zone

    The Twilight Zone Bobtail Member

    46
    31
    Sep 7, 2011
    Cobb Island,Maryland
    0
    I had the same problem on mine....i took it to Detroit Deisal and they showed me what to next time...it is really a simple fix and all you need is a pipe cleaner...there is a sensor that gets clogged up easy...if you still need help pm me and i will write it all down for you..i have to look to see what the sensor is called.
     
    The Twilight Zone, Jan 5, 2012
    The Twilight Zone, Jan 5, 2012
    #9
  12. Feb 19, 2013 #10
    fooomanchu

    fooomanchu Light Load Member

    63
    8
    Oct 19, 2012
    Urbana IL
    0
    Still have this problem? I have a problem that sounds similar. Just curious
     
    fooomanchu, Feb 19, 2013
    fooomanchu, Feb 19, 2013
    #10
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