So recently I got a new OEM clutch installed in my car. 1st-4th gears shift and feel fine. I can shift into 5th then 6th fine too. However, if I'm in 5th or 6th and I give it full throttle, the whole car gets a nasty vibration. This only happens around 2500-4000 rpms. Once I reached like 5k and my car's speed is over 40 mph, the vibration goes away. Can worn motor mounts cause this? Or this is a more serious issue?

 

Status of tire balance?

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Is your clutch properly broken in yet?

 

When was the last time you had an alignment?

 

Yeah it's been around 2,000 miles. I took it easy for the first 500.


In the summer.