I had my car into the shop 2 times--all of a sudden the clutch will go completely to the floor and I can't shift unless I turn the car off and put it in gear, then get up to speed to shift up. The master cylinder would be very low on fluid but they couldn't find a leak anywhere. The 3rd time this happened, they completely replaced the master cylinder and it has been fine for about 5 months. Now it has done it to me again which means another expensive trip to the shop and no car! HELP!
They also checked those, tried different tests and still couldn't detect any leaks. Not sure what fluid they used, but I will ask them. Thanks so much. I will call them and see about getting the car in today or tomorrow.