the mechanic said he put it in...But, i noticed teh box sealed....Now, how can i check if he did.....by sound, or how...without taking hte valve cover off..can a mechanic tell if the cam has been changed by sound

 

I would hope you could tell by the feel of the car.

 

well, the car has been in the shop for soo many instances, i dont know how it felt without a cam....

 

I'm sorry, I'm lost.