crankcase pressure issue on turbo GS300

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11-29-11, 03:46 PM

GSVIP300

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crankcase pressure issue on turbo GS300

Im getting alot of crankcase pressure blow by coming out of the top of my valve cover. Im running a catch can but it is still having excessive blow by. Has anyone else had this same issue?

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11-29-11, 04:53 PM

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Sounds to me like a cracked or worn piston ring Do a compression check and a leak down and let us know

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11-29-11, 07:37 PM

99 GS3

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Are you pulling vacuum from the can/crankcase at boost, or you just have a catch can vented to atmosphere?

Be careful you may be replacing a front main seal soon if it continues.

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11-30-11, 06:18 PM

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Quote:

Originally Posted by 99 GS3

Are you pulling vacuum from the can/crankcase at boost, or you just have a catch can vented to atmosphere?

Be careful you may be replacing a front main seal soon if it continues.

Its blowing out of the top of the valve cover. Not driving the car but we vented it on the catch can to drive home one night. Gonna do a compression test soon

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