Snugging Down...

Install all 11 valve cover bolts loosely, then reinstall the VVT Solenoids, tightening down their bolts firmly. Next, install the plug coils and line up their bolts, installing them loosely as well. Once all bolts are in place and lined up, tighten down the 11 valve cover bolts fully using a cross pattern from the center to outside edges. Finally, tighten the plug coils down then re-check all bolts again.