Engine and Transmission

6,519 topics in this forum

1. E7 427 ECM

   By Hook n ladder 1, September 8, 2013
   • 3 replies
   • 4.9k views
   • 
   • Joey Mack
   • October 23, 2021

2. Low Idle

   By Doug Stoker, October 21, 2021
   • 5 replies
   • 2k views
   • 
   • Mackpro
   • October 22, 2021

3. POWER LAG ON 2003 E7-400

   By GOOG, March 4, 2020
   • 22 replies
   • 3.5k views
   • 
   • GOOG
   • October 20, 2021

4. Thermostat wanted

   By Doug T B42X, October 19, 2021
   • 0 replies
   • 661 views
   • 
   • Doug T B42X
   • October 19, 2021

5. Maxitorque Problem

   By Scott74, October 13, 2021
   • 11 replies
   • 2.3k views
   • 
   • mrsmackpaul
   • October 16, 2021

6. 88 4 valve no start. 1 2

   By 63BMack, September 29, 2021
   • 30 replies
   • 4k views
   • 
   • fjh
   • October 15, 2021

7. 673 or 237 ID

   By TJ'S Truck, February 1, 2020
   • 5 replies
   • 2.1k views
   • 
   • 63BMack
   • October 14, 2021

8. Oil change requirements 1959 B61 w/711

   By 1959MackB61, March 17, 2019
   • 5 replies
   • 2.6k views
   • 
   • Brian D
   • October 14, 2021

9. 05 mack cxn e7 EGR

   By Xach, October 9, 2021
   • 10 replies
   • 3.2k views
   • 
   • Joey Mack
   • October 13, 2021

10. Clutch fan humming

    By mcratchet1, October 12, 2021
    • 2 replies
    • 861 views
    • 
    • mcratchet1
    • October 13, 2021

11. Fuse diagram needed

    By Gravelguy413, October 12, 2021
    • 0 replies
    • 574 views
    • 
    • Gravelguy413
    • October 12, 2021

12. Turbo Q

    By Gravelguy413, October 9, 2021
    • 9 replies
    • 1.6k views
    • 
    • Dirtymilkman
    • October 12, 2021

13. Any issues with Installing mp8 injectors in an mp7?

    By 318Hauling, October 8, 2021
    • 0 replies
    • 609 views
    • 
    • 318Hauling
    • October 8, 2021

14. 2012 MP7 spn 5443 fmi 7 need some advice

    By manolumber, December 9, 2014
    • 7 replies
    • 34.3k views
    • 
    • Toyaa
    • October 8, 2021

15. E7 12L 350hp

    By Jpeyton, October 8, 2021
    • 0 replies
    • 667 views
    • 
    • Jpeyton
    • October 8, 2021

16. E7 Mechanical Engine Miss

    By 67RModel, August 30, 2021
    • 2 replies
    • 1.5k views
    • 
    • Joey Mack
    • October 5, 2021

17. Engine Brake?

    By MACKS, April 24, 2021
    • 24 replies
    • 4.7k views
    • 
    • MACKS
    • October 3, 2021

18. 2017 MP7 DIED ON ROAD WONT RESTART PUT NEW INJECTORS IN STILL NO START SOUNDS LIKE OUT OF TIME

    By JAMES SMITH, October 1, 2021
    • 0 replies
    • 629 views
    • 
    • JAMES SMITH
    • October 1, 2021

19. 1985 Mack MS250 5.5L engine

    By SJM, September 30, 2021
    • 0 replies
    • 703 views
    • 
    • SJM
    • September 30, 2021

20. 2011 mack cx613 mp8

    By Playinghooky13, September 29, 2021
    • 2 replies
    • 941 views
    • 
    • Playinghooky13
    • September 29, 2021

21. What’s up with the AI 400

    By VBETtucking, September 25, 2021
    • 22 replies
    • 5.6k views
    • 
    • OldRedMack
    • September 29, 2021

22. Fly wheel question from Fuzzy Buzzard

    By Draggin Wagon, September 12, 2021
    • 5 replies
    • 1.6k views
    • 
    • theakerstwo
    • September 28, 2021

23. R686ST Mack 5 speed trans to Eaton 8LL speedometer swap

    By fastboater, September 26, 2021
    • 1 reply
    • 1.1k views
    • 
    • theakerstwo
    • September 26, 2021

24. Mack 13 speed to 18 speed

    By Steve L, September 22, 2021
    • 4 replies
    • 1.4k views
    • 
    • Steve L
    • September 26, 2021

25. 673 injection pump help

    By Mean Green, September 3, 2021
    • 5 replies
    • 1.6k views
    • 
    • Big R
    • September 26, 2021