Hi guys. It’s been a while since I have been on here. I’m having a clutch issue for many years now on my 1990 TT. When the car is cold my clutch pedal bites hard right away and works great but after it heats up, the clutch pedal bites on the very top and barely holds onto power. It just revs out, even in the high gears. I have replaced the clutch twice already, along with the slave and clutch master. I am told the only thing left to replace is this vacuum pump that’s associated with the clutch. Does anyone have any similar issues or experience with this? It’s driving me crazy. Thanks for any advice.