"Ok, the problem i have is when my car is in a lower rpm range and i floor it, the car shakes really bad and doesn't really have that much power. It does it in all gears but the most noticeable in in 5th gear up to about 65" saw this question today and i didnt find any real answers. This problem has started to happen for me as well as of yesterday. I also have a 5spd manual and when i give gas at low rpms the car shutters and doesnt really go anywhere. especially in 5th gear like he said around 65mph. also at higher rpms 4,000 sounds like 5,000. any ideas on what it could be?