Engine and Transmission

6,247 topics in this forum

1. Twin Stick Transmission Shift Patterns 1 2

   By ThaddeusW, September 26, 2005
   • 45 replies
   • 209.3k views
   • 
   • fundadtn
   • June 18, 2011

2. SCR Fault

   By j_martell, April 2, 2014
   • 20 replies
   • 75.9k views
   • 
   • Roger LaFleche
   • June 10, 2021

3. Mack AI460 AI427 AMI low torque low horsepower poor fuel mileage granite , dead dog , remediation 1 2 3 4 11

   By Mack Technician, June 21, 2017
   • 270 replies
   • 65.3k views
   • 
   • 03' Big Red
   • January 29

4. E9 500 V8 Mack Vs 3408 V8 Cat

   By brutus998, February 22, 2006
   • 21 replies
   • 64.2k views
   • 
   • BAD DOG
   • January 1, 2013

5. Mack E9 V8 1 2 3

   By heavyhauler, June 23, 2009
   • 68 replies
   • 63.7k views
   • 
   • Marin
   • December 18, 2021

6. MP8 ENGINE NO CRANK WITH KEY SWITCH 1 2

   By jimmycarter, January 21, 2018
   • 35 replies
   • 58.5k views
   • 
   • wishiknu
   • January 12

7. E7 Engine Cranks But No Start 1 2

   By jdklan, January 18, 2008
   • 40 replies
   • 52k views
   • 
   • Onyx610
   • February 7, 2023

8. Fan clutch stays on.

   By garcia26233, December 29, 2012
   • 22 replies
   • 51.6k views
   • 
   • Onyx610
   • April 7, 2022

9. Coolant Pressure Issue. 1 2

   By Blackened, April 7, 2011
   • 40 replies
   • 51.4k views
   • 
   • Diesel89
   • January 21, 2021

10. Vibration that 2 mechanics and Mack dealer can’t figure out 1 2 3 4 17

    By RobM626, March 1, 2018
    • 405 replies
    • 50.7k views
    • 
    • FBGNO
    • November 18, 2020

11. out of hope mp7 fuel issue

    By refuse guy, October 31, 2012   

    • mp7 regen fuel pressure
    • injector cups
    • (and 2 more)

      Tagged with:

      • mp7 regen fuel pressure
      • injector cups
      • injectors
      • fuel line
    • 17 replies
    • 46.8k views
    • 
    • bts-4120
    • April 1, 2017

12. Transmission And Rear End Oil.

    By sbrem, December 30, 2006
    • 14 replies
    • 46.6k views
    • 
    • sbrem
    • January 5, 2007

13. DEF gauge reads empty. NOX malfunction. Derate mode.

    By Darcy1, September 14, 2015
    • 11 replies
    • 45.8k views
    • 
    • Firoz
    • February 22, 2021

14. After treatment catalyst

    By Kyle 537, March 14, 2014
    • 23 replies
    • 42.1k views
    • 
    • Mackpro
    • February 4, 2021

15. E7 shutting off randomly 1 2 3 4

    By Jbush_51, April 27, 2017
    • 77 replies
    • 40.4k views
    • 
    • Cowboy 681
    • March 20, 2022

16. How are the MP8 motors?

    By Mackdaddy2030, April 13, 2014
    • 15 replies
    • 37.6k views
    • 
    • mp8_macky
    • May 3, 2020

17. 1998 E7 wont start 1 2

    By Mild Thunder, August 26, 2014
    • 33 replies
    • 37.1k views
    • 
    • fjh
    • February 7

18. Power Divider Question

    By niceguypmp3, April 28, 2009
    • 15 replies
    • 35.8k views
    • 
    • Lmackattack
    • May 1, 2009

19. Lost Pulling Power 1 2

    By shadow, August 7, 2010
    • 45 replies
    • 35.8k views
    • 
    • lilbit of everything
    • July 11, 2020

20. converting Eaton 9 speed to 13 speed 1 2

    By dds92780, September 7, 2012
    • 39 replies
    • 35.5k views
    • 
    • luke andres
    • January 12, 2021

21. M Drive Issues 1 2

    By Mack Doctor Jr., September 22, 2013
    • 26 replies
    • 35.3k views
    • 
    • Krawle
    • June 29, 2022

22. Calling All Mack 12 Speed Experts! 1 2

    By Warpman89, May 12, 2010
    • 29 replies
    • 34.9k views
    • 
    • MACKTRUCKS4
    • January 24, 2013

23. 2018 mp7 turbo problems 1 2 3 4 7

    By mackcat12, January 14, 2018
    • 174 replies
    • 34.1k views
    • 
    • fjh
    • March 12, 2020

24. Mack/Renault Diesels

    By mrolds88, August 12, 2006
    • 23 replies
    • 33.7k views
    • 
    • kscarbel2
    • August 19, 2019

25. Trouble code

    By Wilsonic, October 25, 2012
    • 2 replies
    • 33.7k views
    • 
    • Victor520
    • October 26, 2012