Slave cylinder question

Hows it going everyone? I have a 08 tacoma 2.7 4x4 MT and Im not sure if Im having slave cylinder issues or something else going on. A while ago I noticed the my truck wasnt taking off very smoothly (almost like i was taking the throttle off momentarily) and so I got an idea to bleed the slave cylinder. After bleeding, it felt much better! Over time of me driving it would start to do the same thing again! So I would bleed it again and boom, feels 10x better. So I’d love some feedback, thank you!

 

The only true "slave cylinder" on our trucks that I'm aware of are the ones on each rear (drum) brake. Is that what you're referring to? Generally speaking, a brake system in need bleeding will not cause drag on the drive line. And once you bleed the air out, it should not come back.

 

I have an auto but iirc the manual is a hydraulic clutch so what you describe is likely a leaking master or slave clutch cylinder. They are not too spendy to replace.

 

@toostroked Im referring to the cylinder on the transmission. @Crosis my master and slave cylinder both are dryer than a bone, but i have heard of an internal leak happening either in the master or slave cylinder. I have a slave cylinder repair kit coming so I will rebuild my slave and let you gentlemen know how it goes, thanks for the opinions though!

 

Does the 4 cylinder have the accumulator like the V6?

When you bleed are you seeing any air bubbles that might have been trapped or does the fluid seem particularly dirty?

It sure does sound like a seal to me, I think you're on the right track. A bad seal doesn't always leak outside, sometimes you get erratic behavior like you describe. Like the pedal is mushy or the engagement point isn't consistent.

When you open the cylinder make sure the walls are smooth or run a hone in it. The body of the various cylinders will develop a groove since the piston doesn't really move all that far and even after new seals there can be a lip worn so it still acts up. It can also get pits in it, like from moisture in the fluid left too long. Point being you might still need a new cylinder.

 

You're forgetting about the clutch slave cylinder, which is what he's talking about here.

As for the actual issue, it does sound like a leak. The 2.7 MT does not have an accumulator, so it is likely either the master, slave or hoses. Have a look up near the clutch pedal for any fluid leaks. The master cylinder is located inside the cabin on the Tacoma, and is made of plastic.

Jeff

 

I will check the inside of the slave cylinder once I have the rebuild kit and I will also check the clutch master as well, I didnt think the 2nd gens had a clutch master! But you do learn something everyday thanks gentlemen!

 

Ah yes. I forgot all about that one. Oops.

 

There has to be a Clutch Master Cylinder. I think what you are confused about is the Brake and clutch share a reservoir.

 

Update: I just rebuilt the slave cylinder and found that the seals on the piston inside of the cylinder were worn, Im thinking thats what it had to be!

 

Everyone I know calls them wheel cylinders.