Engine and Transmission

6,413 topics in this forum

1. Allison transmission problems

   By Grim289, April 5, 2024
   • 3 replies
   • 639 views
   • 
   • The Heinz
   • April 8, 2024

2. Oil leaks

   By 03' Big Red, April 29, 2023
   • 11 replies
   • 1.2k views
   • 
   • terry
   • April 5, 2024

3. E7454 stumble and no cruise

   By bubbamobilin, April 3, 2024
   • 7 replies
   • 418 views
   • 
   • Joey Mack
   • April 4, 2024

4. 1978 R686 Coolant & Oil Dip Stick

   By tenfive0, March 12, 2024
   • 11 replies
   • 967 views
   • 
   • 70mackMB
   • April 2, 2024

5. engine code

   By eric787, March 18, 2024
   • 7 replies
   • 522 views
   • 
   • eric787
   • March 29, 2024

6. Vision??????

   By mowerman, March 14, 2024
   • 8 replies
   • 507 views
   • 
   • mowerman
   • March 27, 2024

7. Mp7 Eating injectors 1 2

   By steeler, February 22, 2024
   • 37 replies
   • 2.6k views
   • 
   • fjh
   • March 23, 2024

8. A really good parts book.

   By Joey Mack, March 15, 2024
   • 4 replies
   • 390 views
   • 
   • Joey Mack
   • March 15, 2024

9. Oil sample results /low oil pressure 1 2

   By Lmackattack, March 1, 2024
   • 28 replies
   • 1.7k views
   • 
   • Joey Mack
   • March 15, 2024

10. Better engine?

    By Straydog954, March 12, 2024
    • 1 reply
    • 353 views
    • 
    • fjh
    • March 12, 2024

11. Throttle unresponsive

    By mcratchet1, March 8, 2024
    • 2 replies
    • 367 views
    • 
    • mcratchet1
    • March 9, 2024

12. 06 chn 613 fuel problem

    By Trumbull_welding, March 4, 2024
    • 12 replies
    • 843 views
    • 
    • fjh
    • March 8, 2024

13. 04 epa MP7 upgrades

    By Big Mack Truck, March 18, 2022
    • 24 replies
    • 2.9k views
    • 
    • Big Mack Truck
    • March 8, 2024

14. E9 AMBAC V style injection pump

    By Flynpenguin, March 5, 2024
    • 8 replies
    • 593 views
    • 
    • fjh
    • March 7, 2024

15. Coolant vapor in crank case, coming out blowby tube and oil fill tube. 2013 Mack MP7

    By Blister28, March 6, 2024
    • 23 replies
    • 1.3k views
    • 
    • fjh
    • March 7, 2024

16. EN7 valve adjustment tool

    By CTS2, February 27, 2024
    • 9 replies
    • 692 views
    • 
    • mechohaulic
    • March 2, 2024

17. E9 Failure pics

    By Supermutt, February 25, 2024
    • 18 replies
    • 1k views
    • 
    • Vladislav
    • February 28, 2024

18. 2000 mack rd688s gunk coming out of crankcase ir

    By Jpaul, February 24, 2024
    • 2 replies
    • 358 views
    • 
    • Joey Mack
    • February 25, 2024

19. Gunk in crankcase filter. 1 2

    By Kwdriver84, December 13, 2020
    • 37 replies
    • 4.8k views
    • 
    • Joey Mack
    • February 24, 2024

20. Cam position sensor

    By 2014pinnacle, January 12, 2023
    • 6 replies
    • 2.1k views
    • 
    • Anthony Corleone
    • February 23, 2024

21. 1988-1990 E9 injector pump.

    By Supermutt, February 12, 2024
    • 4 replies
    • 841 views
    • 
    • fjh
    • February 19, 2024

22. T310m not shifting to high range

    By Toyota231, October 2, 2023
    • 5 replies
    • 1.2k views
    • 
    • Joey Mack
    • February 17, 2024

23. Clutch protection activated

    By jzavala211, February 15, 2024
    • 4 replies
    • 589 views
    • 
    • Joey Mack
    • February 16, 2024

24. 2001 CL713 E7-460xt throttle response issues

    By Mbelyan, February 15, 2024
    • 10 replies
    • 624 views
    • 
    • Joey Mack
    • February 15, 2024

25. Mack AI-300A to Mack E7-460 conversion

    By Boxler1066, February 13, 2024
    • 10 replies
    • 945 views
    • 
    • fjh
    • February 14, 2024