So my car seemed to be driving fine up until yesterday. It seems like the car doesn't even get into gear. Reverse and 1st gear seem to be acting as they should. After that the car appears to get into gear but if I put any gas on it seems to rev almost freely without any real noticible acceleration. The cars is topping out at about 40 mph and will rev as if the clutch is completely slipping even in 5th gear. I have an '03 5 spd and it has about 86k miles on it. I've read about the valve in the slave cylinder and the fact that our clutches are garbage. I just want to know if I need to get the clutch replaced or if it might be something as simple as a clutch cable or that valve acting up. Thanks in advance for the help.