I have a 05 tiburon v6 I recently replaced the clutch and throw out bearing, but I have an issue. Now the clutch pedal will function normally under lower rpm, but when trying to shift in higher rpm the pedal goes soft and I can feel vibrations and makes noise in the pedal. When starting the pedal will sometimes build pressure and other times it will go down easily and the transmission will make a chattering noise. I've already adjusted the master cylinder and bled the slave cylinder a lot with no success. Any suggestions will be greatly appreciated