I went from performance to pure hell.

Originally posted by VieT916
Is your clutch slipping? Put it in 5th at 30 mph, and floor it. If the RPMs shoot up while the MPH doesn't change, it's slipping. If the car accelerates slowly and bogs a little, it's fine.

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VieT916,

This is exactly what happens. After driving most of the day I tested a little bit. I was driving nicely at 55MPH, and upshifted from 4th to 2nd. The MPH didn't change, but the RPM's went from 3500 to about 8000, with no change in the MPH at all.

That would then indicate that it's time to replace the clutch?