2000 F150 4R70W won't shift from 2nd
I have a 2000 F150 5.4L with the 4R70W. I've owned it new since Jan. 2000. It currently has just over 80,000 miles. I have changed the fluid and filter in the tranny at 35,000 and 70,000.
Over the last couple of months, the transmission would sometimes slip before shifting into 3rd. I took it in and it was running fine at the time. No codes were in the system.
Yesterday it stopped shifting into 3rd all together whether in OD or not. It would shift fine from 1st to 2nd but wouldn't shift any further. It would eventually slip into neutral when the rpms went up.
The OD light never blinked so I'm guessing the computer still doesn't show a code.
Unfortunately I was 90 miles from home so I had to leave it at a shop in a small town that I was in for the first time.
Any ideas on what the problem is? I want the shop to know they can't pull a fast one on me in case they aren't honest.