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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. Engine swap ecm communication cable

    Asked by MarshallMitchell,

    0 votes
    0 answers

  2. Brake lights NOT working

    Asked by Strucking101,

    0 votes
    0 answers

  3. EM6 fuel filter

    Asked by cruiseliner64,

    0 votes
    0 answers

  4. 85 MH613 cab mount bushings

    Asked by Ryon Hess,

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    0 answers

  5. Heat/ac stopped working

    Asked by Timk,

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    0 answers

1,096 questions in this forum

  1. Owner

    Asked by Previlon,

    0 votes
    2 answers

  2. E7 with a maxidyne fuel pump

    Asked by JoeH,

    0 votes
    22 answers

  3. Excessive Engine Blow by

    Asked by Navistar/Mack,

    0 votes
    0 answers

  4. Fuse panel diagram

    Asked by 1sttimemackdriver,

    1 vote
    1 answer

  5. MACK HD and MD 2017 EPA DTCs and Troubleshooting Instructions / Manual

    Asked by DIESEL LINK,

    0 votes
    2 answers

  6. eed

    Asked by DIESEL LINK,

    0 votes
    0 answers

  7. Mp8Mack

    Asked by Wheels,

    0 votes
    13 answers

  8. GPS Speedo for 87 Superliner

    Asked by hdfx81,

    0 votes
    2 answers

  9. Jake brake and cruise control switch failure.

    Asked by Gosstruck,

    0 votes
    2 answers

  10. Bulldog

    Asked by Wheels,

    0 votes
    0 answers

  11. Mack 5speed swap

    Asked by Kenny_dodge98,

    1 vote
    31 answers

  12. 2005 Mack Engine

    Asked by mendoza99301,

    0 votes
    4 answers

  13. 1999 CH613 reverse light and low air warning

    Asked by Mike Donohue,

    0 votes
    2 answers

  14. 2001 MACK RD688S Fuel Tank (driver side) - WANTED

    Asked by Joe215,

    0 votes
    1 answer

  15. chn613

    Asked by tmac,

    0 votes
    0 answers

  16. EUP TEST

    Asked by Ezee,

    0 votes
    1 answer

  17. High RPM Idle ( 2002 E7) *NEW TO THIS*

    Asked by Hani,

    0 votes
    0 answers

  18. what motor

    Asked by TWJ721,

    0 votes
    2 answers

  19. Shutting down

    Asked by Aerial,

    0 votes
    3 answers

  20. Air bound coolant system?

    Asked by Madmack83,

    0 votes
    5 answers

  21. 1988RD690S front parking lamps

    Asked by Casper1988,

    0 votes
    4 answers

  22. Mack semi electronic fuel pump vs maual

    Asked by gio400,

    0 votes
    2 answers

  23. Coolant level sensor

    Asked by Matt king,

    0 votes
    4 answers

  24. yard truck

    Asked by hiball wrckr,

    0 votes
    2 answers

  25. Fuel in oil em6-300L

    Asked by Chad5576,

    0 votes
    1 answer

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