Tune up on my 1996 5.9, what to do?

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Harleygtp

Harleygtp

Member
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Aug 17, 2015
Posts
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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?
 

Yeret

The Village Drunk
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Oct 2, 2014
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Location
Under the hood fixing/breaking something.
Ram Year
1999
Engine
5.9 Magnum
This is the TSB for 94-99 trucks...

TSB 18-48-98

To tell you the truth, I really do not understand how or why it works other than wires that carry craptons of voltage, such as ignition wires, really don't want to be near each other. All I know is that after performing the procedure twice, my spark knock reduced dramatically.
 
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