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I have a 2000 chevy s10 4 cylinder motor 2.2. I have an oil leak. i believe its the valve cover gasket but i could be wrong. Any adive on where to start. THank you for your time.
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A vertical cover...I had to ponder that a bit. Still not sure. The valve cover sits flat on top of the cylinder head, with a gasket between them. The cylinder head is where your spark plugs are threaded in. The valve cover rests on top of the cylinder head. It's about 14-18 inches long and about 4 inches high, kind of rounded over so the valves and valve train will fit underneath. A gasket leaking motor oil is very common there, as a lot of oil is directed there and then splashed around to lubricate the valve train. The oil is supposed to drain through engine passages on down to the oil sump- the bottom of engine where oil is kept in the oil pan.
So if you have an oil leak, and it turns out it is the valve cover that is leaking, it's an easy fix-one of the easiest gasket replacements there is.
WHERE IS THE LEAK LOCATED ON TOP OR BOTTOM ? CLEAN OF THE OIL THATS THERE AND TURN ON CAR AND DRIVE IT IF U HAVE 2 NOT FAR BUT CLOSE AND CHECK WHERE THE OIL IS COMEING FROM IT COLD BE YOUR VALVE COVER GASKET
these are known for distributor caps and rotors going bad,also if this is a vortec motor they also have a problem with the injectors leaking in the intake manifold causing pooling of fuel and a rich running condition,on the side with the leaking injectors.check for any codes and take a look at the map sensor.these should be checked out.
The valve cover gasket isn't hard to change. Oil on the plugs indicates a more serious problem. Smoke from the exhaust would be from rings, rich mixture, worn valve guides. It may be that the engine is overfull (that would show on the stick). Oil loss from a leaking gasket would smoke under the hood and leave oil on the engine and the ground.
this sounds like the engine could have some bad valve guide seals allowing oil to be pumped into the combustion chamber of the engine, or you could have some broken pistion rings in the cylinders, i would get the vehichle checked out soon for this problem.
i'm guessing that your car is a 4-cylinder. this is common for inline 4-cylinder engines. since the spark plug holes usually go through the valve cover, the valve cover gasket will leak and collect in the spark plug holes. to fix this you will have to replace the valve cover gasket.
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