SV6 trouble after new spark plugs.

[bennyrocks_79]

could be the coil packs or faulty/ wrong plugs. Sounds like a misfire or its dropped a cylinder. You could try to unplug the coil packs 1 by 1 and see if there is any change to the behavior of the engine.

 

[gcchris]

I dropped some ceramic shards from spark plug 3 into the cylinder, the cylinder popped up and jammed a valve. I thought I was using a deeper bit but it smashed a piece off the top of the plug and it was game over. Thanks for the helpful tips. All