![]() RELATED: 6 Causes of Engine Oil on Spark Plugs 5. Not only can this lead to a very rough ride, but it’s also possible to have an engine fire. When the spark plugs can’t ignite the air/fuel mixture, it causes the engine to misfire. Oil will prevent the spark plugs from working correctly and cause them to foul. If there is oil leaking onto the spark plugs, the fluid can make its way into the openings. The valve cover could be directly over the engine spark plugs. However, a bad valve cover might also be the culprit. Misfiring EngineĪ misfiring engine can be caused by many factors, such as defective spark plugs or trouble with the fuel system. RELATED: 7 Causes Why Car Smell Like Burning Rubber After Driving 4. This situation can be dangerous, as you never want anything burning under the hood that could lead to a car fire. When you open the hood, the smell should be overpowering, but you might not see where the oil is burning from immediately. The oil leaking out of the valve cover can drip onto the hot engine parts and the exhaust, leaving you with a terrible smell. Burning Oil SmellĪnytime you smell burning oil, you should be alarmed. Until you have the valve cover replaced, make sure the motor has sufficient oil or you could end up with costly repair bills due to engine failure. Inspect the valve cover for signs of leaking oil that you might have missed. ![]() If the level continues to be low, even though you top it off, you have to assume the oil is going somewhere. If you care about your engine, you are regularly checking the oil levels. ![]() RELATED: 10 Causes of Engine Oil Leaks 2. You don’t want to wait to have it replaced. When this happens, a layer of debris and dirt also starts to accumulate on the cover.Īllowing the valve cover to leak oil can cause further damage to the hoses and belts. Eventually, it could become much larger, coating the entire surface of the valve cover. ![]() Look around the edge where the gasket seals the cover to the engine.Īt first, it might just be a small leak that slowly drips onto the ground. With that said, if the oil is located on the valve cover area or coming from that region, you can assume you have a bad valve cover or gasket. ![]() However, this simple symptom can be caused by numerous malfunctions. It’s never a good sign to see leaking oil. Valve Cover Replacement Cost Bad Valve Cover Symptoms 1. ![]()
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