1998 Buick Lesabre Excessive Oil Consumption

RACEFAN966

MECHANIC
5,029 POSTS

So just out of curiousity has any one checked to see if the engine will produce pressure through the pcv system when it isn't hooked to vacuum? If you remove the pcv and open the oil cap does it push compression through there? I must admit that this is an interesting problem which is usually a ring or valve problem but it sounds like this may not be. How tight are the valves anyway? I don't mean disconnect the PCV system and drive it as that would not be good for the engine gaskets but while it is in the shop with like a fuel pressure tester will it produce any pressure. Just idea's

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Wednesday, February 4th, 2009 AT 8:56 PM

444FIRE

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Thanks for the ideas, I'll certainly ask, but unfortunately at this point the engine is tore apart and we won't be able to check till it's back together.

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Thursday, February 5th, 2009 AT 6:52 AM

RACEFAN966

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Ok great let me know what is found.

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Thursday, February 5th, 2009 AT 9:52 AM

444FIRE

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The engine was reassembled using a FelPro gasket for sealing the intake to the heads. The FelPro gasket has a seal around the entire outer perimeter AND around the EGR ports, whereas the GM gasket did not. Testing will begin on Monday to see if I get more than 800 miles/qt. Of oil. All of your past input is appreciated. Thanks.

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Sunday, February 8th, 2009 AT 9:34 AM

RACEFAN966