Have a 99 Buick LeSabre with a GM V6 3800 Series II. Was driving it down the road and it made a loud "pop". Since then it's been knocking, and has a P0301 cylinder one misfire code. It's also leaking oil, there's a puddle building up around the bottom of the frame, underneath the engine. It knocks pretty bad. The check engine light and oil lights are both on.
Aug 11, 2015 at 8:17 PM
