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Old Oct 14, 2019 | 01:17 PM
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Roger Holmes's Avatar
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I have a 2007 Cts 3.6 and oil is leaking into spark plug tubes.
I have changed valve cover gaskets but that didn't work.
 
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Old Oct 31, 2019 | 05:42 PM
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Short Fuse's Avatar
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When you replaced the valve cover gasket did you replace the spark plug tube seals also? If not then you need to take the valve covers back off and do that.
 
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