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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

1,097 questions in this forum

  1. Fast idle with cruise control

    Asked by Phill,

    0 votes
    10 answers

  2. 97 ch 713 E7 454 hp

    Asked by arlogger,

    0 votes
    1 answer

  3. Need Axle help

    Asked by CXU613,

    0 votes
    0 answers

  4. 1958 Mack B61

    Asked by Beck,

    0 votes
    4 answers

  5. Rods & mains bearings

    Asked by CocoSr,

    0 votes
    16 answers

  6. How to identify Mack truck electrical system?

    Asked by Benjamin,

    0 votes
    18 answers

  7. No acceleration

    Asked by CocoSr,

    0 votes
    2 answers

  8. MACK E6 MECHANIC HELP WITH A/C COMPRESSOR AND A/C BRACKET??

    Asked by Sehka77,

    0 votes
    2 answers

  9. 1970 DM Truck

    Asked by swissy,

    0 votes
    5 answers

  10. Dm800

    Asked by Jackb,

    0 votes
    6 answers

  11. Owner

    Asked by Smith7,

    0 votes
    0 answers

  12. AnyOne have e6 4v or 1990 Rd690s repair/services Manual FORSALE???

    Asked by Sehka77,

    0 votes
    19 answers

  13. Mack Metroliner Truck Cabin Getting Warm

    Asked by Nick J,

    0 votes
    0 answers

  14. 1987 Mack R GVWR sticker/plate

    Asked by 87mackman,

    0 votes
    2 answers

  15. AI 370 Fuel Pump

    Asked by OldRedMack,

    0 votes
    6 answers

  16. Trailer power buss bar behind coolant tank

    Asked by Diesel89,

    0 votes
    1 answer

  17. Midliner

    Asked by Rick01,

    0 votes
    10 answers

  18. RED SHUTDOWN BUTTON????

    Asked by Sehka77,

    0 votes
    6 answers

  19. camelback vs volvo t ride. which is best and why?

    Asked by gio400,

    0 votes
    0 answers

  20. 1956 mack b42sx with a en402 gas engine

    Asked by jim1305,

    0 votes
    1 answer

  21. New Mack rocker switches— no manual in truck and can’t find anything online.

    Asked by Justadriver,

    0 votes
    1 answer

  22. 90’-99’ RB688’s?

    Asked by Mr. Dana Taylor,

    0 votes
    0 answers

  23. 1999 mack RD688S

    Asked by Rick01,

    0 votes
    4 answers

  24. 2019 MP7 Low Power

    Asked by Christian Wagner,

    0 votes
    0 answers

  25. Any one Know of a good Mack Mechanic in the West Coast ?

    Asked by Sehka77,

    0 votes
    0 answers

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