Engine and Transmission

6,347 topics in this forum

1. 300AI cooling issues

   By Bigjohn4300, October 28, 2021
   • 7 replies
   • 907 views
   • 
   • Mackpro
   • October 31, 2021

2. E6 350 turbo upgrade?

   By Ole Windy, July 20, 2021
   • 11 replies
   • 3.4k views
   • 
   • Ole Windy
   • October 30, 2021

3. Dynatard injector pump switch

   By ekennedy21, October 28, 2021
   • 0 replies
   • 479 views
   • 
   • ekennedy21
   • October 28, 2021

4. Turbo maybe too big?

   By Bigjohn4300, March 1, 2021
   • 16 replies
   • 2.5k views
   • 
   • Bigjohn4300
   • October 28, 2021

5. 12 speed PTO

   By Superdog, January 8, 2016
   • 21 replies
   • 5.8k views
   • 
   • Steve L
   • October 28, 2021

6. No more Mack manual transmissions 1 2 3

   By Mackpro, December 21, 2019
   • 50 replies
   • 12.3k views
   • 
   • ECG
   • October 27, 2021

7. AI or Etech replacement

   By Bigjohn4300, August 3, 2021
   • 4 replies
   • 998 views
   • 
   • Bigjohn4300
   • October 26, 2021

8. Speedometer quit working

   By ChesterChop, October 24, 2021
   • 9 replies
   • 839 views
   • 
   • ChesterChop
   • October 24, 2021

9. 2014 MP8 Regen Issue

   By Goddy454, October 18, 2021
   • 13 replies
   • 2.2k views
   • 
   • Goddy454
   • October 23, 2021

10. Tachometer not working

    By ChesterChop, October 23, 2021
    • 4 replies
    • 961 views
    • 
    • ChesterChop
    • October 23, 2021

11. E7 427 ECM

    By Hook n ladder 1, September 8, 2013
    • 3 replies
    • 4.2k views
    • 
    • Joey Mack
    • October 23, 2021

12. Low Idle

    By Doug Stoker, October 21, 2021
    • 5 replies
    • 1.2k views
    • 
    • Mackpro
    • October 22, 2021

13. POWER LAG ON 2003 E7-400

    By GOOG, March 4, 2020
    • 22 replies
    • 2.4k views
    • 
    • GOOG
    • October 20, 2021

14. Thermostat wanted

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

15. Maxitorque Problem

    By Scott74, October 13, 2021
    • 11 replies
    • 1.6k views
    • 
    • mrsmackpaul
    • October 16, 2021

16. 88 4 valve no start. 1 2

    By 63BMack, September 29, 2021
    • 30 replies
    • 2.7k views
    • 
    • fjh
    • October 15, 2021

17. 673 or 237 ID

    By TJ'S Truck, February 1, 2020
    • 5 replies
    • 1.7k views
    • 
    • 63BMack
    • October 14, 2021

18. Oil change requirements 1959 B61 w/711

    By 1959MackB61, March 17, 2019
    • 5 replies
    • 1.9k views
    • 
    • Brian D
    • October 14, 2021

19. 05 mack cxn e7 EGR

    By Xach, October 9, 2021
    • 10 replies
    • 2.1k views
    • 
    • Joey Mack
    • October 13, 2021

20. Clutch fan humming

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

21. Fuse diagram needed

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

22. Turbo Q

    By Gravelguy413, October 9, 2021
    • 9 replies
    • 1.2k views
    • 
    • Dirtymilkman
    • October 12, 2021

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

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

24. 2012 MP7 spn 5443 fmi 7 need some advice

    By manolumber, December 9, 2014
    • 7 replies
    • 32.2k views
    • 
    • Toyaa
    • October 8, 2021

25. E7 12L 350hp

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