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What would cause a white frothy foam coming out of the PCV valve which is brand new on a 258 I6?


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Answered 2004-12-30 05:30:21

If the vehicle is subject to nothing more than just short trips, then this would be normal. It would also cause accelerated engine wear due to corrosion. What you are seeing is condensation mixed with some of the oil/residues inside the engine. Remove the oil cap, and the underside should be just covered with the same. Take the car for a run of about ten miles, and check the condition again, while the engine is still warm. If the condition remains the same, you may have bad intake, or head gasket(s).

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