Overdrive going out
Got a 2001 F350 CC,Auto, LWB, 4x4 Lariat with 192k miles. I had a rebuilt transmission and triple disc torque converter put in at 170k miles. Two weeks ago the overdrive began to act strange- would kick in in then kick off for a minute or two before kicking in for good on the highway. Now the OD seems to be slipping and the truck wants to stay out of OD altogether.
I just had the trans serviced under warranty two months ago. I am not sure what the problem is. Any suggestions?