ok I have a 03 lb7 d-max.... has 6 spd and 4x4 with a 14' flatbed.... does good but occasoinally the clutch will slpi for no real reason ... unloaded in 5th getting on freeway roll in to the throttle and occasoinally it will slip.... but i can bang though the gears and nothing and sometimes slip ????

it all started when pulling a 32 ft trailer.... suddenly it started to slip... let off on the fun pedal and it hooked up down shifted and all was good.... sometimes the clutch pedal will suck its self to the floor as well... or become so damn hard to depress almst have to use both feet........ new to this truck but WTF ??????????? i'm thinking its the throwoout bearing or the slave cyl.... but have no idea please help...

 

Definitley sounds like it's time for a new clutch.

 

looks like you get to upgrade now!

 

Yup! Once it starts to slip, it will continue slipping

 

its so occasional though..... and whats with the clutch pedal suddenly sucking its self almost to the floorboard ????? had lotts of sticks but neverone that did this.... sometimes you can just bomb on it and it holds just fine...... and sometimes it says..NOPE.... and then grabs and good...... just seems odd......was thinking the hydraulic throwout bearing was trippin or something...

 

the other day i added fluid to the resivore and the clutch seems to hold a bit better.... thinking the throwout bearing might be toast ... any input there ???

 

My Clutch pedal sticks down sometimes, also.

At first I thought it was low low on fuild in the master clutch. After adding fuild to the master clutch, it started working O.K. until when I was towing My 5th Wheel with the outside temps@106 degrees and the water temps@230 degrees. At that point, the clutch pedal went to the floor and it was almost impossible to shift at all. Once I let the engine to cool, It worked just fine. As long as the engine temp is normal, It works and the clutch releases just fine. I'm guessing the problem may be with the Slave Clutch Cyclinder. Has anybody have any ideas?? How do you go about replacing the Slave Clutch Cyclinder, if I need to?

 

Still workin with this issue ..... also it seems like the truck has been smoking black a bit .. no tuners or anything ... running big AFE and running Castrol Hyperon 15/40, fuel economy is better and such , but what's with the smoke ??