Clutch pedal reluctant to return to top. What might be the cause? Can I fix? on 2000 Ford F-350 Super Duty

Clutch pedal hesitates about half way back to normal position, then sometimes returns fully, and sometimes almost doesn't return. An intermittent problem.

Asked by for the 2000 Ford F-350 Super Duty
2 answers
check and lube clutch pedal
never mind.