Tranny problem

[youngstroke]

Ok, it's the 4th time my trucks done it I'm taking it to the dealer tomorrow. You never know when it's going to happen, but when i start to accelerate up to speed my truck drops to first gear. Last night me and my fiancee were leaving the movies, and i got up to about 40 mph and it tries to down shift and completely pegged my tach. The last few times it has done it i blamed it on trying to down shift for power, but not this time i hardly had my foot in the peddle. It runs on the governor for about 5 seconds and the it madly shift back up to the correct gear.

[youngstroke]

Dealer doesn't know, so I'm up the creek.

[FordNutz]

I haven't touched the dipstick on one. Is that a 6r140?

[youngstroke]

Yes i believe it is

[FordNutz]

Im sure the VB is fully electronic. Makes me wonder if it's a speed or tps input of some sort.

[youngstroke]

I don't know it doesn't throw a code so it will be nearly impossible to find.

[youngstroke]

This makes number 5 tonight. I feel like driving to the engineers' houses and saying get in lets go for a ride.

[YFZ_53]

id be raising hell for a new tranny if i were you! didnt they claim this tranny to be nearly indestructible? i say go raise some hell and let us know how it turns out!

[youngstroke]

yeah i wish i could but they act like i don't know what I'm talking about.

[gottabadf250]

Pull out in the street, put it in neutral, rev the heck out of it, pull it down into gear.

Something will break, hopefully the tranny, haha.

Seriously though, I hope they get your issue resolved.

If not, take it to another dealer man.