How to Determine if an Oil Leak From a Car is From the Valve Cover Gasket. Part of the series: Car Maintenance Tips. Valve cover gasket oil leaks in car engines occur where the valve cover meets the head. Determine if a valve cover gasket is leaking oil in a car engine with tips from an automotive service excellence (ASE)-certified master auto technician in this free video on automotive maintenance. Read more: [ Ссылка ]

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