runs rough but seems to be better after oil and filter change

2002 FORD WINDSTAR
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DCSAUTOREPAIR2
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I have a 2002 ford windstar se van with a 3.8 v6. water seeps into the cylinders and oil. it runs rough at idle. Could there be a chance that the plastic upper intake manifold be defective like the gm 3.8 v6? this vehicle has 176,283 miles on it. water seeps into cylinders and/or oil. runs rough. slight improvement with idle after oil and filter replacement.
May 17, 2012 at 12:31 AM
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CARADIODOC
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If the coolant level in the reservoir is going down, suspect a leaking head gasket.
May 17, 2012 at 12:40 AM
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DJCL
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  • ASE Certified Mechanic
That engine had a lot of head gasket problems. Have a cylinder leak down test done. It will confirm the problem. There were a lot of problems with the gaskets.
May 17, 2012 at 12:46 AM
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