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Mack Truck Q & A

This forum is for pressing questions concerning Mack Trucks...emergency maintenance questions, pre-purchase questions, etc...answers can be rated by users and the higest rated answers will show first!

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  1. 96-97 mack mr688p trans filter change

    Asked by Hamza,

    0 votes
    0 answers

  2. Engine swap ecm communication cable

    Asked by MarshallMitchell,

    0 votes
    0 answers

  3. Brake lights NOT working

    Asked by Strucking101,

    0 votes
    0 answers

  4. 85 MH613 cab mount bushings

    Asked by Ryon Hess,

    0 votes
    0 answers

  5. Heat/ac stopped working

    Asked by Timk,

    1 vote
    0 answers

1,104 questions in this forum

  1. what motor

    Asked by TWJ721,

    0 votes
    2 answers

  2. Shutting down

    Asked by Aerial,

    0 votes
    3 answers

  3. Air bound coolant system?

    Asked by Madmack83,

    0 votes
    5 answers

  4. 1988RD690S front parking lamps

    Asked by Casper1988,

    0 votes
    4 answers

  5. Mack semi electronic fuel pump vs maual

    Asked by gio400,

    0 votes
    2 answers

  6. Coolant level sensor

    Asked by Matt king,

    0 votes
    4 answers

  7. yard truck

    Asked by hiball wrckr,

    0 votes
    2 answers

  8. Fuel in oil em6-300L

    Asked by Chad5576,

    0 votes
    1 answer

  9. ECM port - Mack trucks manufactured after 2014

    Asked by MoeFleethandler,

    0 votes
    1 answer

  10. fault code

    Asked by dsoville,

    0 votes
    1 answer

  11. Code - !5004- 14 / M136

    Asked by Doc18,

    0 votes
    1 answer

  12. 2009 Mack codes???

    Asked by TruckingFrank,

    0 votes
    1 answer

  13. Changing engines

    Asked by gio400,

    0 votes
    6 answers

  14. 2000 rd 688s

    Asked by Linden creek dairy,

    0 votes
    1 answer

  15. Slight skip

    Asked by Ezee,

    0 votes
    6 answers

  16. Exhaust side EECU

    Asked by JoeH,

    0 votes
    1 answer

  17. Mack DE

    Asked by Scu,

    0 votes
    4 answers

  18. GU 813

    Asked by Luch,

    0 votes
    1 answer

  19. 2004 Mack Granite Frame

    Asked by JoeH,

    0 votes
    3 answers

  20. Pre purchase suspension conversion question

    Asked by JoeH,

    0 votes
    8 answers

  21. Scanners and software 99 CH

    Asked by Mike Donohue,

    0 votes
    2 answers

  22. 2010 GU 713 shutting off while driving

    Asked by GPWS,

    0 votes
    1 answer

  23. Mack

    Asked by Mohame12,

    0 votes
    1 answer

  24. 03 cv713 eup problem

    Asked by Aletasman,

    0 votes
    1 answer

  25. Looking for more horse power

    Asked by JMaro4321,

    0 votes
    2 answers

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