Following up....

A plug that goes to the line pressure solenoid was not connected properly; hence, max tranny line pressure at all times. At WOT this was fine but at part throttle, not good - harsh shifts.

Big kudos to Transgo for inviting me up to have a look at the issue. Took them about 10 minutes to find the problem. While they were in there we replaced the plastic forward accumulator piston as the one I had when I did the install did not fit.

Thanks to all the guys who offered assistance. Still wondering if zippy can work some magic on the tranny's overall performance....

 

So what do you think so far after a couple days behind the wheel? Inquiring minds would like to know....

 

A yank tt3000 will soften your shifts a bit

 

Was this an electrical connector?

 

Yes, it was.

 

glad to hear your ready for friday

 

I had to withdraw because I did not know if it was going to be fixed in time.

 

There had to be a check engine light on?

 

Nope!

 

So the connection was bad at the force motor? thats what controls main line pressure?Didnt you do your transgo install a while ago?Has it been like this or did it just act up?