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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. 98 mack rb

    Asked by 98 mack rb,

    0 votes
    0 answers

  2. Mack Pinnacle Lacking Power Under Load

    Asked by nbone28,

    0 votes
    0 answers

  3. Vision front axle vs. Ch

    Asked by dogg rescue,

    0 votes
    0 answers

  4. Outside window sweeps

    Asked by vinny933,

    0 votes
    0 answers

  5. 2000 Mack vision no start

    Asked by mikeb150,

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1,175 questions in this forum

  1. Supervisor

    Asked by Doug Johnson,

    0 votes
    1 answer

  2. Supervisor

    Asked by Doug Johnson,

    0 votes
    0 answers

  3. 49 fuel pump.

    Asked by 49Fire,

    0 votes
    0 answers

  4. Which engine and Trans and year?

    Asked by Earthwerx,

    0 votes
    0 answers

  5. 2 valve jake adjustment

    Asked by 88RD688S,

    0 votes
    0 answers

  6. 1988 or 1989 RD688S

    Asked by rjs,

    0 votes
    3 answers

  7. owner operator

    Asked by DCPS Inc.,

    0 votes
    2 answers

  8. Mack 18 speed transmission when on high range on the throttle it pulls fine then I let off the throttle it goes in to neutral and make a terrible grinding noise any idea what wrong?

    Asked by Kirby Hawk,

    0 votes
    8 answers

  9. 95 CH 613 E7 350 Air in fuel system

    Asked by 95CH613,

    0 votes
    5 answers

  10. Driver

    Asked by Terry Walton,

    0 votes
    0 answers

  11. 1987 RW713 Superliner hood latch

    Asked by Carol,

    0 votes
    1 answer

  12. Gmc cracker box

    Asked by Billyh,

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    0 answers

  13. Manual Regin

    Asked by Jeanetta Garrett,

    0 votes
    1 answer

  14. Parking valve

    Asked by Blacka007,

    0 votes
    0 answers

  15. Parking valve

    Asked by Blacka007,

    0 votes
    0 answers

  16. 2002 Mack Ch 427 6-4 codeJ1939 link

    Asked by Jomorisn,

    0 votes
    1 answer

  17. 17 Mack pinnacle

    Asked by MacDragyn,

    0 votes
    8 answers

  18. 1999 E7 427 Good Engine?

    Asked by RAYSFLIGHT,

    1 vote
    0 answers

  19. R 700

    Asked by ws721,

    0 votes
    2 answers

  20. oil consumption

    Asked by CV7132005,

    0 votes
    4 answers

  21. Plani drive information

    Asked by gedfleet,

    0 votes
    1 answer

  22. Mack rd688s 2003

    Asked by Zachman15,

    0 votes
    1 answer

  23. High pitched humming under acceleration

    Asked by Sanhell,

    0 votes
    0 answers

  24. 1997 mack e427hp

    Asked by 97mack427,

    0 votes
    3 answers

  25. Excess oil

    Asked by Mike E,

    0 votes
    0 answers

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