I also have a 2.2 L 2005 Cobalt, but I have a more basic question: How do I change the spark plugs, period? After unscrewing the oil cap and taking off the big, black plastic shroud, I see the metal engine, but it's just a smooth surface and I don't know how to open it up to get to the spark plugs. Can anyone help? Thanks.
there should be 4 10mm bolts holding on a cover. unbolt those 4 bolts and pull up. Then you should be able to see your plugs. It littleraly takes 5 mins to change the plugs in these cars.
A forum community dedicated to Chevy Cobalt owners and enthusiasts. Come join the discussion about performance, modifications, parts, classifieds, troubleshooting, maintenance, and more!