Happy Spring Everyone. Ok recently I had some things happen that even chevy dealer in my area has no clue to the reason. First was the sputtering when idling. Then came sputtering while driving causing the "hold" light and the "check engine" light to blink. When I pulled over and stopped, they stopped. Go figure right. So I went and bought new spark plugs. the wires looked really new. The gap on my spark plug is supposed to be .044. In the engine they were .075. But this was not the problem. After I bought and changed the spark plugs it once again began to sputter and cause the flashing light show. (after thought) oh crap I forgot to mention all the oil I found in the spark plug area, so I cleaned it all out, but I did order a new gasket and now I am figuring .... could it possibly be... maybe.....I hope so, so I bought an ignition coil along with the gasket, figure to kill two birds with one stone. Does anyone here have any other ideas on what may be causing the problem. Oh here is the kicker, even with the check engine light flashing, no codes were tossed..... When doing the valve cover gasket, is there any torque needed, or just a good tightening. Any tips or suggestions before a rookie attempts to do the job, gotta learn sometime right?