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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. 1970 R model

    Asked by Al and son,

    0 votes
    0 answers

  2. MP7 and Allison auto

    Asked by Cbokor,

    0 votes
    0 answers

  3. 2008 with mp7 and Allison auto

    Asked by Cbokor,

    0 votes
    0 answers

  4. what is the coolant capacity on a mack quantum? (or ch)

    Asked by Gorilla,

    0 votes
    0 answers

  5. 96-97 mack mr688p trans filter change

    Asked by Hamza,

    0 votes
    0 answers

1,138 questions in this forum

  1. engine fan not engaging

    Asked by shilohwestphal,

    0 votes
    4 answers

  2. Truck in accident, no external damage, crank but no start

    Asked by Highroadhauling,

    0 votes
    3 answers

  3. best gearing for fuel consumption on a ea7/e7 470hp

    Asked by Gorilla,

    0 votes
    21 answers

  4. i need a mechanical fuel pump for an e-7 mack

    Asked by Charlie1234,

    0 votes
    0 answers

  5. Service Manual for a 1989 R690T

    Asked by sdhco,

    0 votes
    6 answers

  6. 85 Mack t2090 clutch pilot bearing replacement?

    Asked by Ryon Hess,

    0 votes
    10 answers

  7. Engine fan

    Asked by Wdavis,

    0 votes
    14 answers

  8. Open wastegate

    Asked by gio400,

    0 votes
    13 answers

  9. Actuator not connected

    Asked by gio400,

    0 votes
    3 answers

  10. Loss of power 2007 Mack granite ctp713 with the MP7

    Asked by Elijah Gandy,

    0 votes
    1 answer

  11. Spring spacers

    Asked by vinny933,

    0 votes
    10 answers

  12. Seat Belt Requirements

    Asked by kansasflyer,

    0 votes
    4 answers

  13. 12.7 Detroit hissing n puffing black smoke

    Asked by gio400,

    0 votes
    24 answers

  14. 2000 mack 688s

    Asked by Jphood,

    0 votes
    2 answers

  15. 1978 endt 676

    Asked by Max.superliner,

    0 votes
    56 answers

  16. Turbo to manifold gasket

    Asked by spencer paving,

    0 votes
    0 answers

  17. cab swap due to wreck

    Asked by ryan c,

    0 votes
    1 answer

  18. 05 CV713 ECM Questions

    Asked by 05 CV713,

    0 votes
    18 answers

  19. Vibration

    Asked by Stacyb,

    0 votes
    5 answers

  20. 2014 Mack Pinnacle Sleeper AC Issues

    Asked by Cpitt32,

    0 votes
    10 answers

  21. New clutch in 85 MH613 with maxitorque. seems aligned right but not going into any gears when turned on? Possible shift linkage not back right?

    Asked by Ryon Hess,

    0 votes
    9 answers

  22. Drl relays on 2021 Mack granite

    Asked by Troydye70,

    0 votes
    8 answers

  23. 1980 Superliner V8

    Asked by Supermutt,

    0 votes
    4 answers

  24. B61 CLUTCH ADJUSTMENT

    Asked by RUSSELL STANLEY,

    0 votes
    4 answers

  25. 05 Mack ch ac427 engine

    Asked by Chinos transport,

    0 votes
    1 answer

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