The shaking means the engine is misfiring and it is likely the result of ignoring the Check Engine light. When it turns on that means the Engine Computer detected a problem, often before it turns serious, and it set a diagnostic fault code to tell you what that problem is. The place to start is by having the code(s) read and recorded. They will indicate the circuit or system that needs further diagnosis.
Thursday, June 27th, 2013 AT 3:52 PM