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

2002 FORD WINDSTAR
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DCSAUTOREPAIR2
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  • 6 POSTS
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 16, 2012 at 5:31 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
If the coolant level in the reservoir is going down, suspect a leaking head gasket.
May 16, 2012 at 5:40 PM
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DJCL
  • ✓Experienced Mechanic
  • 767 POSTS
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 16, 2012 at 5:46 PM
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