2004 f-550 clutch pedal softens when engine warms up

[FordFanaticTony]

hello fellas. i dont have much experience in the diesel manual trans world but i have a customer with a 6.0 2004 f-550 who is experiencing a cluth pedal that softens when the engine is hot. any suggestions to what may be causing this concern. thanks in advance for any suggestions or recommendations.

[lmorris]

Never had this kind of complaint before. Only things that come to mind would be the shielding on the line and slave cylinder, or oil on the clutch disc.

[jimmy57]

When it softens does the clutch still release fully (still goes into gear easy if out in neutral then clutch depresed to put in gear)?

Does the soft pedal retrun to normal effort if you depress clutch a few times or does it have to cool?

[Steve Mutter]

Maybe try flushing the fluid out of them system.

[Aaron]

Complete slave and master filled and bled is cheap in the aftermarket.

 

If the clutch still releases ok I would tell him not to worry. Perhaps a buildup of shit on the input shaft or where the release bearing rides. Once it heats up and everything expands its easier to move.