Based on what you're saying, it sounds like an engine miss. Are you sure that the plug wires are on correctly? Also, the two cracked plugs have me concerned. After you replaced them, were they ok? Also, when the car is at an idle, does it miss? If so, try the old way of finding a miss. Carefully remove one spark plug wire at a time to see if the engine misses more. If it runs worse, replace the plug wire because that cylender is firing. If you find that a plug wire makes no change when the wire is removed, it isn't firing.
Let me know what you find, and make sure not to get shocked when removing the wires.
Wednesday, November 12th, 2008 AT 4:45 PM