Help Needed fender above exhaust keeps turning black

[dmd]

If you are just concerned about the fender, then just add a turn down tip.

If all the truck has is the programmer, then it probably needs a better intake
and exhaust to let the air flow better and it will run cleaner. That or keep
your foot out of the throttle.

 

[HighwayPrisoner]

You preesum hard on go pedal, you makem smoke. Smoke mean you burnin diesel, makum truck go like squaw in heat Savvy?

 

[Butch Cassidy]

I cut off 2" off my exhaust - for ease of installing and removing the camper. Also took care of the "black fender syndrone"

Butch Cassidy

 

[remod]

Ok guys , my diesiel has super chip tuner installed , oversized exhaust and k&n air filter ,which I keep cleaned and oiled , and I am not foot heavy on the throttle . Never had a problem with with smoke build up on fender until about a year ago , after Ford replaced rusted out oil pan . Thanks for all your replies , Bryce

 

[dmd]

Well I hope the engine isnt smoking more from gettin dusted by the K&N... That
would be bad... A clean K&N filters worse than a dirty one..