I recently had a problem with my Mitsubishi GTO 1992 Non Turbo MANUAL Japanese import.
When I was revving it would simply rev and the car would hardly move. I had the whole clutch changed and the slave cylinder. This fixed the most of it but now, a couple of days later, when my car gets warm it happens again, particularly in high gears.
If the clutch and slave cylinder have been changed, what can it be?