Ok, pretty much since the day I bought my truck, I've had an issue with the transmission.

I now have almost 7k on my truck. My truck is an AWD HD and it only has this issue intermittently. When driving in a 25mph zone it cruises in 3rd until you go about 26-29 when it wants to go into 4th. Before it goes in 4th just cruising, (Not accelerating or anything like that just keeping a constant speed for the most part) it will jump from about 1500rpm or so where it was in 3rd to 2100-2400rpm and shift hard into 4th. Almost feels like a stick shift would if you were to put in the clutch leave your foot on the gas and shift it up a gear.

It does it maybe once or twice a week. I have a 06 F-150 I drive for work and beat the hell out of and have never had this issue. My brother is a Ford tech and has never seen this on any vehicles before either, and everytime I take him out in it I can't get it to act up.

WTF, does anyone know what this is? Bad converter? Bad factory tune? I want to get this taken care of before I decide to put any mods on my truck.

 

If your brother is a Ford tech, see if he can fix you up with a PCM reflash.

 

you would think Ford would have this squared away by now; this is the same bull I went through in 04

get the PCM re-flash with the latest version and it will probably fix ya-up

 

Cool deal, I'll have to get that done next oil change.