86Capri

Truck has 175k miles on it and has always ran great and shifted perfectly. A week ago while going from one highway to the next it just spun up in overdrive as if a shift solenoid gave out. I slowed down to a stop on the shoulder and took off again and it was fine till it shifted into 3rd and spun up again as though the gear was gone. Shifts fine from 1st to 2nd. The only other symptom is that with the overdrive button turned off it drives fine in 1st and 2nd and never tries to shift to 3rd or O/D which I find odd and if I have the O/D on and it tries to shift 3rd isnt there, push the O/D button and it locks into 2nd and you can drive it. It manually shifts from 1st to 2nd as well, but go to drive and nothing after 2nd.

I did replace all solenoids and put new fluid and filter in it and I found the little plunger / plug in the pan so the pan has never been off the truck before. There was a fair amount of shavings on the magnet but no more than I have seen on quite a few transmissions with some miles so not enough to scare me and the fluid does not smell burned, just used. Any ideas? I have no Check Engine lights of any kind but have not had anyone run codes.

This is a 2006 Lariat 4x4 with 5.4L 3V and 4R75W automatic.

jamie930

You need a new or rebuilt trans

The 2nd gear and 3rd gear are on a common shaft. 3rd gear takes over when the direct clutch engages

Had the same thing happen to my truck.

When I called the transmission shop I told him it wasnt shifting to 3rd, he asked if I had any trans codes and he said it was the direct clutch. Which after reading a ton of info on the 4R75W trans. I came to the direct clutch was no engaging

PShelby

Yep... I had the same thing happen to my truck... 3 trips to different shops and I just ended up ordering a new transmission and installing it myself. I installed the transmission in my driveway... it wasn't too bad, you just need patience! there are alot of pain in the but bolts you have to get out!