What is wrong with my transmission?
I have a 2003 Subaru Imrezza with 150,000 miles with a manual transmission. When the engine is at 2,900 RPM and I step on the accelerator, the RPMs shoot up to 3,900 and then back down to 3,000 before I start accelerating. No burst of speed or anything, just a burst of RPMs at about 2,900. I am planning on taking her into a transmission shop next week, but wanted to guess what the mechanic will tell me.