Shakes or Wobbles problem
2003 Saturn L200 4 cyl Two Wheel Drive Automatic
The check engine light came on. I had a diagnostic done said there was a misfire. I replaced plugs wires and the coil plus I reset the computer, and the problem still is not fixed. When I go to put it into drive it gets a really bad shake and it shakes everytime you stop plus it is really hard to get it going. It will move once it finally shifts. I can figure out whats wrong with it. Your help would be great.
Probable causes of engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.