I have an issue with my transbrake, i have 200 lbs pressure at the servo cover at idle. Transbrake engages, pressure drops but only returns to 100 lbs. Transbrake doesn't hold when i get on the converter(rolls forward) and then sticks, i need to rap the throttle a couple times to get it to release!
Any ideas? Valve body? Reverse apply piston?
Help!
Thanks
Brian