I'm just curious if the behavior of my truck fits those of others.

While in OD, my torque convertor won't lockup until I hit ~49mph. With OD turned off, my torque convertor locks up at ~46mph in 3rd gear. The above speeds are with light throttle. Seems like it should lock up sooner with OD locked out - like maybe around 35-ish?

 

Those numbers seem right, that's what mine locks up at.

 

With "OD off", you should have lockup right around 30mph with light throttle.

 

That's kinda what I thought, too. That's how my old 1999 CTD (47RE) would behave. I'll try the APS reset procedure tonight. Anything else I could try?

 

Guys, I think in an 03 if its a 48re lockup is just after 45mph regardless.ks