Slave valve leaking

SLAVE VALVE???? Man you got to set it free! One of those "lives matter" groups are gonna chase you down for sure!

 

Piston has come off the end of shaft inside. You need a tow truck.

 

o ring bad on the piston in range selector if piston came off take cover off put it back on no tow truck needed

 

Had a similar problem with a rebuilt trans,except no air leak. Rebuilder suggested removing supply line and spraying silicone,as soon as I took the line off,heard the piston move. Never had a problem after that,only thing we could guess, was it had some kind of air lock going on.

 

So 2016 freightliner Cascadia slave cylinder leaking is this a problem? What is going on here? I don’t know if this is related but seems to me this is going to be a problem?
Can anybody tell me about this slave cylinder on the transmission for the clutch?
Is this going to lead to a failure? Will this cause the clutch to apply too much pressure and burn or too little pressure?
I have a lot of trouble in the ninth and 10th gear so I’m wondering about the synchronizers
But I see I’ve got this leak and I just got the truck so I see a lot of buildup and I know it’s been a problem for a while but the buildup makes me think that it might have been happening for a while so do I have time is there an easy fix what????

 

Just looks like grease from release bearing or cross shafts.

 

Synchronizer is only for the range shift. Nothing to do with a 9/10 shift.

 

Thanks I just got this truck and I’m used to the older models
Isn’t there two synchronizers? One for six and one for 10?
I just don’t know about the newer trucks just like the brake pedal these days with a lot of play in the old days they used to have return springs that hold the pedal up and steady.
But I guess these days the pedal is just there to bounce because it’s a actuator or plunger cylinder instead of a spring I like you said just trying to learn this truck.
So I’m wondering why so much of a narrow RPM range for those two gears? i’ve been driving for 30 years I have never really had that much trouble shifting transmission maybe it’s just this kind?
Yes long enough I shift this truck I will catch the rhythm I just want to make sure since I’m buying it that some thing is not going to sneak up on me and I find out the solution on the side of the road.
Thanks for your help

 

You have a low and high range synchro. The pic you posted is the clutch slave cylinder, not a transmission slave valve.