2012 F250SDw/6.7L Turbo Diesel Engine Issue - Need Help !!!
Hey first time posting - also first time owning a 2012 Ford F250 4x4 Super Duty w/6.7L Turbo Diesel...and I need help !
The truck is not even a year old yet and I just turned 19k on the odometer and have had an intermittent issue happen about 8ish times that doesn't throw an error code to the computer and was not reproducible at the dealership test drive so they think I'm nuts !...here are the symptoms, driving a constant speed and then suddenly it appears like the engine starts missing a beat, but rapidly and very noticeably - making the truck feel like i'm driving on an old country dirt road that has the wash board effect...and the more gas i give it the harder it thumps, I let off the gas and it goes away, kinda, only to return when gas is applied again and then it just goes away, it prolly only last about 2 to 3 minutes and when i give it gas it does accelerate while thumping so it's not like a total loss of power, it also has never happen when pulling a load, just normal in town driving...it's odd cause none of the gages flicker - tack is steady as a rock and no dummy lights come on and the dealer sees nothing in the computer !...i see where this is going with the dealer - it has to break or at least throw an error code before they can do anything - I'm stuck, just hope not on the side of the road !
Does anybody have any ideas of what might be happening ?
If it helps for fuel I run Valero diesel 99% of the time - never have run any of the bio-diesel and I run a little Power Services Diesel Kleen +Cetane Boost every few tanks. Also the dealer did say they applied some software upgrades to the computer for the transmission, also said they did some other things that I know they didn't do cause I watched the whole process and I went on the test drive, but that is a whole nother story...lol
I really appreciate any info !!!
Thanks for your time.