I have a 91 LX AOD shifting at high rpm. It's typically shifting at around 3500 rpms and letting off the gas. It's got a new transmission that has been built up and has a "Transgo Full Race shift kit". TV Pressure has been checked by multiple ford mechanics and other mustang specialists and they say the transmission is working fine and that it's more than likely the shift kit causing the shifting. Somehow, I feel that it may not be the shift kit. It's a new transmission that was pre-built with high performance parts, so I don't think the governor or valve body is stuck in someway.

Will post a video soon of the issue for better illustration.

""If the TV cable is not connected the transmission will default to full TV pressure. If TV pressure is full shifts will only occur at the wide open throttle shift point, which is usually around 4900 RPM. This means that even at light throttle you would have to get to 4900 RPM to get a 1-2 shift." --Sounds like I have too much TV Pressure as this sounds about like my issue." - Baumann

Is there any truth to the above statement?...My cable is attached by the way.

 

Is the Torque converter new too? If not it could be that also.

 

The torque converter is brand new.

 

Just a shot in the dark....

Why not just try and replace the governer or throttle body to see what it does?

 

Here is a video I took on impulse when I drove the stang around the block of my neighborhood. At no point of this recording am I going farther than 1/2 throttle. You can easily notice later in the video that I do get on it very briefly ( no more than. At the beginning I'm going at slight throttle all the way until I say something in Hungarian to myself ("It's crazy"). After that I'm going at about 1/8 throttle until I turn again. At about 1:28 I push it to about 1/2 throttle very briefly then slow to about 1/8 throttle until I turn again. At 1:50 I'm pushing very very slightly on the throttle because I'm turning again quickly back to my street. Note that it just creeps to 3200 RPM then shifts on it's own. All shifting is pretty firm, which feel fan-****ing-tastic, especially if I go at WOT it will very easily chirp into 2nd and sometimes 3rd.

 

EDIT: I've also took all the tension off the TV Cable and have it in the neutral position...and still shifts the same. It shifts no different if I give it very slight tension or very slight slack. I've also got to redo my base idle...I know.

 

Try seeing what kind of opinions you could get regarding your AOD's woes on this site:
http://www.clickclickracing.com/forums/forum.php
They should know a thing or two about the AOD/AODE/4R70W transmissions.

 

http://www.clickclickracing.com/foru...7426#post67426

...Way ahead of you.

 

I see, haven't visited that site in awhile.