c6 trans brake delay

I am a ford tech & my buddy at work that does nothing but trans work rebuilt my c6 trans & after rebuild the car will move a couple of feet after trans brake button is applied and then hold. The trans shifts fine through all the gears.Did not have this problem until rebuild. Any help would be greatly appreciated

What brand brake is it?

The trans brake is a jw

I'm not a trans guy but I would say you need to call JW and get feedback from them. Could be something wrong in the trans, in the brake, or how its wired.

You have to give it a little time to apply the t/brake, so count to two or so before letting off the foot brake.

The trans brake did not delay before overhaul & the wiring is the same as it always was. Thanks for the replies i will call jw.

shouldn't have much delay...... something not right IMO

richter69 wrote:shouldn't have much delay...... something not right IMO

X2

That VB have an external solenoid ? if so pull it and the valve in the modulator port an check that it free moving
Frank

Checked the valve the solenoid rides on and it moves free. The solenoid works everytime the button is applied with no delay.

I have the same issue with a pos jpt v/b. Could line pressure play a role in this?

check your line pressure and get back to me
Frank

Not to steal the OP's thread but would around 125 psi at idle and 150 ish on the 2 step sound low?

I think it should be closer to 190 - 200 on the 2 step
Frank

I put a tci trans break in my tci c6 and it moved forward when applied . Fixed it by adjusting band, it was too tight . Also car slowed down . drags back bumper now

Thanks for the help guys. Took valve body apart & found sticking valve.