First off my camaro is a 1989 IrocZ with a 5 speed tranny. this happens in warmer weather and in stop and go traffic. I never ride the clutch but after a while the clutch seems to stop working and even when pressed down the car keeps moving. It's really hard to get it into or out of gear at this point also. When the car cools down for a while it acts normal. The car repair guys think I'm nuts. HELP!!!! I'm NOT!
Clutch problems on 1990 Chevrolet Camaro
Perhaps the clutch fluid is overheating or there is a problem with the clutch master or slave cylinder when hot. You could try flushing the clutch fluid and see if that helps.
The exact same thing is happening to me now. I have a 2004 Hyundai Sonata and the pedal only sticks when it's extremely hot outside. I thought it had something to do with the AC being on, because it would do it when the AC is on but when I turned it off 5 minutes later it pushes in like butter. The Hyundai people think I am crazy and want me to give them $2,000. I don't want to do that if replacing everything isn't going to remedy it.