Question about 2003 Ford Focus
You have either a bad head gasket that needs to be replaced ASAP or possibly a cracked head (more expensive). If you continue to drive or run the engine it will suffer crankshaft bearing failure. If the intake manifold is a "wet" type (coolant goes through it for any reason) that gasket may be leaking and letting water in the oil. But I'm leaning toward a new head gasket.
In either case, water is entering the combustion chamber.
Posted on Mar 08, 2015
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Posted on Jan 02, 2017
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