TH400 and transbrake question
Thread Starter
Joined: Dec 2008
Posts: 1,229
Likes: 24
From: lancaster, pa
TH400 and transbrake question I recently swapped out the 4l60e to a th400 with a full manual reverse valve body. for the shifter i got a hurst pistol grip shifter with a button on top which i wired to activate the transbrake. with key to accessory on but not started i press the button on the shifter in park and hear the transbrake engage and disengage. i shift to other gears and press the button i hear it it engage/disengage again. is it supposed to do that? im concerned that i may accidentally bump and press the button while driving and cruising. did i miss a wiring step?
TECH Junkie
Joined: Dec 2012
Posts: 3,615
Likes: 1,327
From: Iowa
You just wired a button to a solenoid...it'll work anytime it has power to the button
If you didn't put any type of interrupt in the circuit...why would you expect it to do any different?
Yes it will be able to activate the transbrake while moving even...depending on the valve body the effect that may have can vary.
If you didn't put any type of interrupt in the circuit...why would you expect it to do any different?
Yes it will be able to activate the transbrake while moving even...depending on the valve body the effect that may have can vary.
Thread Starter
Joined: Dec 2008
Posts: 1,229
Likes: 24
From: lancaster, pa
You just wired a button to a solenoid...it'll work anytime it has power to the button
If you didn't put any type of interrupt in the circuit...why would you expect it to do any different?
Yes it will be able to activate the transbrake while moving even...depending on the valve body the effect that may have can vary.
If you didn't put any type of interrupt in the circuit...why would you expect it to do any different?
Yes it will be able to activate the transbrake while moving even...depending on the valve body the effect that may have can vary.
TECH Addict
Joined: Dec 2004
Posts: 2,177
Likes: 627
From: Florida
It is functioning correctly with respect to how you wired it up.
How you wired it up isn’t exactly a good and safe way to have done it. It’s a good idea to have something that prevents the brake from engaging when you don’t want it to.
How you wired it up isn’t exactly a good and safe way to have done it. It’s a good idea to have something that prevents the brake from engaging when you don’t want it to.
Thread Starter
Joined: Dec 2008
Posts: 1,229
Likes: 24
From: lancaster, pa
true. what is the proper way to have it wired please?
TECH Junkie
Joined: Dec 2012
Posts: 3,615
Likes: 1,327
From: Iowa
If you have stock ECU there isn't a great way to prevent accidental button press
My recommendation would be a valve body that engages reverse without the need for the transbrake solenoid
Then a simple lockout toggle switch that is just like an arming switch so that during normal use you have an interrupt
This is just the nature of high performance stuff...it requires care and special driving habbits/training
My recommendation would be a valve body that engages reverse without the need for the transbrake solenoid
Then a simple lockout toggle switch that is just like an arming switch so that during normal use you have an interrupt
This is just the nature of high performance stuff...it requires care and special driving habbits/training
