ferricsteed

Problem: car at cold start-up, very late shifts, almost 3000 rpm before will upshift. It gets better after fully warmed up but still shifts way too late. Additional info: it will not shift into overdrive gear (nor TCC) until running in excess of 70 mph with accelerator in fully off position (coasting). Only then it will shift into overdrive and I may then cruise with normal part throttle. Shop Manual shows a picture of a "90 degree Throttle Valve Lifter Rod" that is wrapped around by a light spring. This car does not have this specific rod. The FSM suggests one may pull down this lifter rod to make sure it snaps up into position knocking the check ball off its seat. However, my lever assembly has a more substantial stamped-in lifter rod that should keep the check ball off its seat. Was there an upgrade put into later production than what is shown in my 1986 Factory Shop Manual? History: I am the original owner of car. The 700-R4 was replaced in first month of warranty back in late 1985. No problems since until last month after I did some adjusting to TV cable for autocross purposes. This is an early model '86. Now with 130k miles.=left
I have the tranny pan off. The TV cable is not in any bind, TV plunger is smooth in bore but I'll note the TV plunger does NOT meet the TV lever on the TV bracket assembly. Should it? There is a 1/4" free play before the lever just begins to contact the plunger so the TV plunger is free to move back and forth. That seems incorrect and need advice on this point specifically.=left
Picture of a newer TV Lever and Bracket assembly would be helpful.
Idea: remove this TV Exhaust check valve. FSM states it is only there should the TV cable break if I understood the manual correctly. It stated the check ball should be pushed off its seat at idle and, of course, at any throttle opening.

C409

….. Sounds like a governor issue to me … and adjust the TV cable to spec …..

JrRifleCoach

OK no problems until you played with the TV cable.
Are these problems occurring after the TV cable has been returned to its normal adjustment?

ferricsteed

Yes, JrRifleCoach. I adjusted the TV Cable back to spec per FSM weeks ago but had the problems I wrote above. I removed the tranny pan to see if something was amiss, particularly the TV Lifter Rod or TV link rod being bent. Neither were bent, neither were in a bind. It is still disassembled until I can figure a path forward (or am given a direction).

JrRifleCoach

Sorry. Going inside AT valve bodies is outside my box.
I'm sure someone here can chime in to help you.