Join Date: Dec 2009
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I have an 04 with 49K miles and only use it for towing about 5K miles a year 8K lbs max (26' Formula, ATV Trailer w/ tent trailer attached, Snow mobile trailer.
I think you are monitoring all the criticals. I'm surprised you have blown that many head gaskets. I monitor boost and clean my stock turbo yearly. I run an Edge Evolution (I know its not very popular on this site but they have always taken care of me). I run the Tow with the firm shift selection. I would also have ATS Double Deep Tranny pan and Diff Cover. I also only run Amsoil and change it every 5K miles. I run a Fuel Additive. I have updated Fuel Spring (Fuel pressure is critical to injector life I'm told), EGR Delete (I was told this is the single best reliability Mod I can do for this engine), I run a Coolant Filter (I was also told this is the single best reliability Mod I can do for this engine). If you have more than a 15' delta between EOT and ECT while towing your oil cooler is plugging up.
04 Ford Black Harley Davidson Crew Cab SB, 5" Lift, 35" BFG KM's, Detroit LS Front, XDI Intake, 4" Turbo back Exhaust, EGR Delete, Coolant Filter, Edge Evolution, Edge Insight EOT, ECT, Tranny Temp, Analog Pyro & Boost, ATS Deep Tranny Pan & Diff Cover.