Clutch pedal sticking to the floor

[zingpow]

My brother has an 08 250 4x4 6spd and he just got the KEM 345 tune on his livewire for it. When he has that tune loaded the truck drives great until he starts getting on it and goes to shift from 2nd to 3rd or 3rd to 4th his clutch pedal will stick to the floor and he has to kick it and pull it back up with his toe. He said it feels like there is a lot of pressure that builds up that he can feel in his pedals. Any ideas? fluid is full and seems to be ok. Also you can drive the truck normal on the 345 tune just cant get on it really. And this problem is non existent on any of the canned tunes that are on the sct already.

[my1stdiesel]

Mine did the same thing. He will have to upgrade his clutch, I would recommend South Bend as I had bad luck with valair.

[zingpow]

Yeah he's going to go with the south bend eventually, did you ever find out what the problem was?

[my1stdiesel]

I think it has something to do with the self adjustment on the stock pressure plate.

[zingpow]

oh. Can it be manually adjusted? It seems like everyone we ask has no clue why it does it.

[my1stdiesel]

I dont think it can be manual adjusted. It has something to do with to much power for the stock pressure plate and the self adjusting system.

[zingpow]

Thank you. Anyone else have experience with this? Or anything else to add?

[Barry Smith]

A friend of mine has a D-Max that does the same thing. They say it's boiling the fluid they put a trans cooler on it. Didn't help much. I think they are the same trans aren't they? Every manual shift truck should have a NV-5600 transmission in it.

[zingpow]

what fluid is boiling?

[Barry Smith]

Fluid in slave cylinder.