If the light is on, it will need checked and diagnosed.
I assume you mean the valve cover gasket. You replace it by removing the valve cover and cleaning off the oil gasket and the mounting surface. The install the new gasket and reinstall the valve cover. Tighten it to the specifications the manufacture of your engine recommends.
To replace the valve gasket on a 1995 Nissan pickup, first ensure the engine is cool and disconnect the battery. Remove the valve cover bolts and gently lift the valve cover off, taking care not to damage any components. Clean the surface where the gasket sits, then place the new gasket onto the valve cover and reattach it, tightening the bolts to the manufacturer’s specifications. Finally, reconnect the battery and check for leaks after starting the engine.
To replace the valve cover gasket in a Porsche 944, first, ensure the engine is cool and disconnect the battery. Remove the valve cover by taking out the bolts and gently prying it off, being careful not to damage the surface. Clean the mating surfaces thoroughly, then place the new gasket onto the valve cover, reattach it, and tighten the bolts in a crisscross pattern to the specified torque. Finally, reconnect the battery and start the engine to check for leaks.
you will have a very oily engine engine compartment, the cover and gasket prevent the oil that is pumped to the valve rockersfrom escaping and hence drain back to the sump
Check your crankcase ventilation, the hose or pcv may be blocked or disconnected.
To replace the tappet gasket on an Opel Astra, first, ensure the engine is cool and disconnect the battery. Remove the valve cover by unscrewing the bolts and carefully lifting it off. Clean the mating surfaces, then place the new tappet gasket in position before reattaching the valve cover and tightening the bolts to the specified torque. Finally, reconnect the battery and check for any leaks after starting the engine.
The valve cover gasket, on a 2004 Jeep liberty, can be found by removing the valve cover. Peel the gasket off of the head and replace with a new gasket.
how do you replace the valve cover gasket on a 2002 mitubishi lancer
To replace the rocker cover gasket on a Vauxhall Astra/Opel Astra 1.3 Gi engine, first, ensure the engine is cool and disconnect the battery. Remove any necessary components, such as the air intake or ignition coils, to access the rocker cover. Unscrew the rocker cover bolts, carefully lift off the cover, and remove the old gasket. Clean the surfaces, place the new gasket in position, reassemble the rocker cover, and torque the bolts to the manufacturer's specifications.
What is a oil cover
Not usually valve cover gaskets tend to leak after time just due to the constant temperature changes in the engine
video to learn how to replace the engine gasket..upper & lower gasket for 1999 Monte Carlo.