Q: Valve cover and misfiring cylinders on 6 and 7 (needs a tuneup) 2011 Chevy Silverado 1500

asked by on December 16, 2016

I was told that I needed to replace the valve cover and that spark plugs 6 and 7 were oil faulted.

My car has 142000 miles.
My car has an automatic transmission.

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