Harleygtp
Member
- Joined
- Aug 17, 2015
- Posts
- 91
- Reaction score
- 23
- Ram Year
- 1995
- Engine
- Cummins 12v
Autolite 3923's helped my spark knock back in the day. I'm running Champion RC12YLC now though but may swap in the Autolites when I change them again. When I got my plenum fixed, it still had just a smidge of knock going up hills though I remedied this by rerouting the plug wires as per the TSB. I can pretty much dump anything in the tank without knocking now.
Do you have any information on that TSB? What years are effected?