Electrical, Electronics and Lighting

1,492 topics in this forum

1. Mack Anthem front turn signals/4-way flashers not working need help please

   By Rich Banwait, September 25, 2021
   • 4 replies
   • 5k views
   • 
   • Enrique
   • Monday at 06:08 PM

2. B model headlight upgrade

   By Bumblebee090458, January 18
   • 10 replies
   • 468 views
   • 
   • Geoff Weeks
   • January 27

3. 75 r model wiring help

   By Youngin, December 11, 2025
   • 1 reply
   • 327 views
   • 
   • Bumblebee090458
   • January 18

4. 2015 Mack Pinnacle not starting

   By Vangessela, September 29, 2025
   • 12 replies
   • 1.7k views
   • 
   • Vangessela
   • January 18

5. B model headlight upgrade

   By Bumblebee090458, January 18
   • 0 replies
   • 148 views
   • 
   • Bumblebee090458
   • January 18

6. Reverse mute disable

   By DanToby91, February 6, 2018
   • 3 replies
   • 12.6k views
   • 
   • FleetMech7
   • January 16

7. Major Mack Electrical Issue

   By Midland Oilfield, January 17, 2020
   • 6 replies
   • 4.6k views
   • 
   • John_MP10
   • January 14

8. red lights on 7way circuit chaser

   By green_380, November 15, 2025
   • 2 replies
   • 481 views
   • 
   • revnexis
   • December 31, 2025

9. Cv713 intermittent dead pedal

   By Orange cv713, December 11, 2025
   • 5 replies
   • 491 views
   • 
   • Joey Mack
   • December 20, 2025

10. no reverse lights

    By dark knight, December 3, 2025
    • 6 replies
    • 512 views
    • 
    • dark knight
    • December 17, 2025

11. Mack RD Gauge Panel Light Dimmer Switch Part Number

    By 67RModel, February 17, 2022
    • 3 replies
    • 2.1k views
    • 
    • KP2
    • December 12, 2025

12. 99 rd headlights

    By Mack superdog, December 7, 2025
    • 3 replies
    • 358 views
    • 
    • Joey Mack
    • December 7, 2025

13. Superliner 1 headlight arrangement.

    By Outbehindthebarn, December 6, 2025
    • 4 replies
    • 406 views
    • 
    • Vladislav
    • December 7, 2025

14. 2004 Mack cv713 instrument cluster problems

    By petehall12, December 3, 2025
    • 5 replies
    • 403 views
    • 
    • Joey Mack
    • December 3, 2025

15. 2007 Mack CTP, No brake lights

    By Jaytrucking, October 29, 2025
    • 7 replies
    • 803 views
    • 
    • Jaytrucking
    • November 25, 2025

16. Speedometer and wire for 8LL

    By Raven9, November 16, 2025
    • 6 replies
    • 618 views
    • 
    • Raven9
    • November 23, 2025

17. 2007 Mack CTP 713 No brake lights

    By Jaytrucking, November 16, 2025
    • 0 replies
    • 374 views
    • 
    • Jaytrucking
    • November 16, 2025

18. 94 ch613 plug in to read mileage?

    By BronsonA2150, November 2, 2025
    • 10 replies
    • 815 views
    • 
    • BronsonA2150
    • November 10, 2025

19. Firewall main bus diagram

    By green_380, November 8, 2025
    • 2 replies
    • 464 views
    • 
    • green_380
    • November 9, 2025

20. Coolant level sensor code 1-7

    By Matt king, March 5, 2018
    • 8 replies
    • 6.1k views
    • 
    • Joey Mack
    • October 24, 2025

21. Engine brake wiring

    By Nathanwhit1, October 21, 2025
    • 18 replies
    • 1.1k views
    • 
    • Nathanwhit1
    • October 22, 2025

22. 1987 mack rd688sx

    By john17, October 20, 2025
    • 3 replies
    • 654 views
    • 
    • john17
    • October 22, 2025

23. Intermittent crank but no start/fuel condition

    By CrocEyes, September 30, 2025
    • 0 replies
    • 482 views
    • 
    • CrocEyes
    • September 30, 2025

24. 1987 r model clutch pedal making voltage drop (dynatard)

    By Ericjdecket, September 4, 2025
    • 9 replies
    • 3.4k views
    • 
    • Geoff Weeks
    • September 18, 2025

25. Parasitic draw on 91 Mack RW

    By Sarge, September 9, 2025
    • 1 reply
    • 1.9k views
    • 
    • fjh
    • September 9, 2025