
There is some oil that's been spilled from when the oil has been added to the engine. It keeps the noise down from the valve train. They are 10-millimeter, so I'm using a 10-millimeter socket ratchet and extension. We're going to remove these two top nuts that hold on the appearance cover.

This one is leaking quite badly, so it needs to be changed. Worst case scenario, if this is really leaking badly, you could cause a fire. Sometimes you'll even see smoke coming from underneath the hood and a faint whiff of burning oil. If there's oil leaking, this exhaust manifold is of course hot when the engine is running. The valve cover gaskets are typically near the exhaust manifold. It will give you a rough running and misfire. There could be oil leaking down into the spark plug openings and then leaking past the spark plugs. Also, if you've got a rough running or engine misfire, the valve cover gasket also seals around where the spark plugs go into the engine. If you're checking the oil regularly and the engine oil keeps going low, it could be leaking from the valve cover gasket. However, some other things that would be a problem attributed to a leaking valve cover gasket would be oil loss. This is the number one easiest way to tell that you need a valve cover gasket. Because oil is sticky, dirt and debris will stick to it. When this gasket fails, you'll get a bunch of oily residue leaking out. Where that meets the top of the engine's head, there is a gasket that seals and holds in the oil. Underneath this plastic cover there's a secondary cover that is actually covering all of your valve train components. We need to release the secondary or safety release. It's just inside right around your left knee on the driver's side. We have to pull the release inside the car.

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