Originally Posted by illegal regal
i have a 78 regal fastback. i just swapped out my th350 for the 700r4...it just been built and installed, the first time i drove it...it shifted well...1st...2nd...3rd...and 4th. my line sprung a pin hole leak and put me like a lil over a quart low. i filled it up and now it wont come out of 1st!?! if the t.v cable is still hooked up...what can it be???
T.V. Exhaust ball or = binding, mispositioned or unhooked allowing ball to seal causes full T.V. pressure regardless of throttle position. My best guess. Adjust the TV cable & see if it'll shift at WOT/WideOpenThrottle. If so it's probably stuck in default mode. May have done this when the pressure loss from leak happened.
Do Not run with the TV cable unhooked or misadjusted . Can cause low pressure & a burnt trans very quickly. Crosley can help more as I'm no trans expert.