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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

1,111 questions in this forum

  1. 2002 Mack Ch 427 6-4 codeJ1939 link

    Asked by Jomorisn,

    0 votes
    1 answer

  2. 17 Mack pinnacle

    Asked by MacDragyn,

    0 votes
    8 answers

  3. 1999 E7 427 Good Engine?

    Asked by RAYSFLIGHT,

    1 vote
    0 answers

  4. R 700

    Asked by ws721,

    0 votes
    2 answers

  5. oil consumption

    Asked by CV7132005,

    0 votes
    4 answers

  6. Plani drive information

    Asked by gedfleet,

    0 votes
    1 answer

  7. Mack rd688s 2003

    Asked by Zachman15,

    0 votes
    1 answer

  8. High pitched humming under acceleration

    Asked by Sanhell,

    0 votes
    0 answers

  9. 1997 mack e427hp

    Asked by 97mack427,

    0 votes
    3 answers

  10. Excess oil

    Asked by Mike E,

    0 votes
    0 answers

  11. Help.

    Asked by karencarroll,

    0 votes
    2 answers

  12. Trev

    Asked by Trev,

    0 votes
    0 answers

  13. 2019 granite wiper delay

    Asked by vinny933,

    0 votes
    0 answers

  14. MP7 boost pop

    Asked by Midwest Farmer,

    0 votes
    5 answers

  15. Sandro Pelusi

    Asked by Tato,

    0 votes
    1 answer

  16. ENDT 673 final year offered

    Asked by AMGeneral,

    0 votes
    2 answers

  17. 1988 r690 speed ?’s

    Asked by 66rmack,

    0 votes
    4 answers

  18. Help identifying this Mack

    Asked by NElandscaper,

    0 votes
    5 answers

  19. Mayday! 2011 MP7 Granite- oil pressure shut down

    Asked by RR1,

    0 votes
    4 answers

  20. Fuse diagram for chu613 2009 please

    Asked by Dbdb_22,

    0 votes
    1 answer

  21. Linda

    Asked by Dorothea,

    0 votes
    0 answers

  22. 2 cycle oil in fuel

    Asked by ws721,

    0 votes
    29 answers

  23. 1996 Mack Midliner CS250p engine & transmission

    Asked by Mrbone3000,

    0 votes
    0 answers

  24. 1993 Mack Rd 688 E7 400 Bad Actuator ?

    Asked by Onestitch,

    0 votes
    0 answers

  25. Mack T310 transmission

    Asked by OleSon,

    0 votes
    1 answer

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