Hmm, it's hard to know based on your question, but you might have a misfire. Your mechanic is wrong. You need to take your car to a better mechanic.
The shaking can be from those codes but I don't know for sure since I don't know what the code numbers are.
The first thing you need to do is take your car to a good mechanic. There could be very serious issues going on with your car.
Monday, October 15th, 2012 AT 3:07 AM