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Clifford the big red dog

Puppy Poster
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Everything posted by Clifford the big red dog

  1. I'm not certain on the 09 but the 2014 has all of your lighting running through the turn signal switch and headlight switch.
  2. I totally agree, I think tomorrow I will remove the wires going back to the pigtail from the firewall and test again. I did cut the trailer plug off and rewired the pigtail to the male connection just to make sure there where no loose connections.
  3. joey mack I will definitely check that out tomorrow. I did remove the red wire from the block on the firewall and tested the connection it goes to with the same results.
  4. okay guys and gals, I have a 2014 mack cxu with the mp8 engine, auto trans. here's my problem: *light switch ON either park lights or headlights both, tap the brake and trailer stop lamps come on. after releasing brake or trolley lights stay on and relay is not resetting. *light switch OFF all trailer braking lights function normally. *when the switch is on I can turn on flashers and brake lights for trailer function properly. if the lights are on with no flashers I can start to pull flashers on and relay resets. tractor stop lights work as they should, its strictly on wires to trailer pigtail/ I have replaced blinker switch, headlight switch and bypassed trailer harness and tested directly at connection under hood and still having the same problem. any help would be greatly appreciated thank in advance.
  5. I have a 2013 mack pinnacle mp8 sleeper truck, and was wondering if I could delete the large oversized muffler and replace with straight pipe without it messing with the dpf or anything else?
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