UMmm. DONT know how to explain this right, but here we go : oK my car vibrates when i gas it?? each time i shift to higher gear it gets worst! my dash board , my seats , my shifter shakes and rattles...my friend say " there is probably something wrong with your tranmission mount or tranmission ..." BUT, B4 i started having this problem , i took it to a japanese shop to get an 60k tune-up and my fuel injector clean. I think they did something more to it????PLZ help! i need to know whats going on with my SEVEN. THANKS!

 

blown motor???.. do a compression check

That would tell you for sure... Probably a vac leak however, but could also be a bad spark plug, misfireing leading coil, and countless other things

 

i had my spark plug replace...when i got my 60k tune-up

 

sounds like performance to me lol