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This is a link back to an old thread noting that the use of lucas oil products in the fuel tank might be a problem and now we have a thread showing lucas oil products being used as an oil additive could have caused trouble for a 6.7L owner. Just something to keep in mind.
It is a very pronounced knock. I did not hear a knock in the first truck but I'm not around it very often. These engines run so quiet compared to mine it's hard to believe that they are even diesel. The driver said the first truck stumbled for a moment and then locked totally up. Another issue that has not been resolved in my mind is how the dealership automatically claimed the core engine.
I've been following this thread with interest. I've driven company vehicles most of the time for the past 40 years, and some fleet operators have maintenance plans and schedules that are strange, different, and seem down right screwy. But... it's their truck, and if it breaks down, I get paid to wait for the tow truck. (Although, thinking back, I can't recall ever having that happen.) I also reasoned out early on that if I doctored their maintenance plan and something went south, all fingers would be pointing at me.
As an aside, I've also developed an "anti-hero" policy that goes like this: If I see an opportunity to do a job quicker or better by "modifying" a company policy, I promptly ignore that impulse and do the job the company way, because:
1) If I pull off a winner, no one notices anything out of the ordinary, but
2) If I break something or hurt myself, the disaster becomes totally my fault.
I learned this following advise that my dad told me over and over: "Son, life's too short to learn everything by experience. Watch others, and learn from their experience. It will also be a lot less painful!"
I'm with Ben...sure would like to know how this issue has turned out...It's been almost a month and there has not been any update from the original poster.
Something else that bothered me is our engine that was being returned for core appeared to me that it was never opened up.
Back in the day I bought a 7.3 crate motor as a replacement for a failed motor in my 03 F450. The dealer would not open it up, the reason being that if something was discovered that would make it unusable as a rebuildable core, I would not receive credit for the core.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.