GMC Envoy XL oil leak and oil in spark plug wells possibly due to valve cover gasket issue on GMC Envoy XL

Some GMC Envoy XL owners report experiencing oil leaks due to a faulty valve cover gasket, which can lead to oil seeping into the spark plug wells. This issue may result in symptoms such as burning oil smell, engine misfiring, and visible oil accumulation around the spark plugs. Owners are advised to address this problem promptly to prevent further engine damage and maintain optimal vehicle performance. Replacing the valve cover gasket is typically necessary to resolve this issue, and it is recommended to consult a mechanic or follow the manufacturer's repair guidelines.