I have a 2006 shaking and vibrating when I put into Drive or Reverse. I replaced the spark plugs nothing changed. I've notice that the boots kind of damp with oil for 4 of them but not super wet. I tested with pulling the boot coil ignitions while the engine is running and I've notice nothing change when I unplug one of the coil. The other 3 I've notice the different so I thought one of the coil is bad. I went and bought a brand new coil ignition and replaced the one that nothing happened when I pull out. Nothing changed after replacement. Can someone suggest what I should check next? thank you
