My engine will occasionally shudder. It'll start up just fine and sit and idle. Every once in a while however it will shudder and the whole car will shake. I think that the engine just might kick off but it never does. It does this for 5-10 seconds then goes back to normal. My first idea was to run fuel system cleaner, new spark plugs, and air filter. Anyone got any ideas?

 

Any chance you've recently had your A/C serviced? Could be overfilled

 

Actually no. For some reason my AC really sucks. If anything I'd say that it needs a recharge. I rarely ever use my AC though.