He says it's been randomly not shifting to OD over the last few weeks. It wasn't wanting to shift into OD at all today so I had him pull the chip. It has the same symptoms, not good.
He says if he is doing 60 @2500, shifts to neutral, revs the motor a little off idle, puts back in drive, it will shift into OD. The tranny does not slip, has no abnormal heat, and doesn't even mind being lugged in OD once it's there.
02 F250 Lariat Dark Shadow Gray, 343,000 miles on the clock, 4in. lift, 4in. exhaust system w/5"stack, BTS Trans, DIY regulated return.
"A fanatic is someone who cant change their mind and wont change the subject" Winston Churchill
That's not almost the same thing at all. The truck does not try to shift period, until 65 mph, some of the time, meaning randomly. Other times it shifts like it should at the normal mph. I had him clear codes, pull battery cables, touch + & - together to reset things. Truck has driven flawlessly for 20+ miles at this point. I'm sure it will be back, just tells me it's not mechanical.