4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Lots of oil in blowby:

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Old 03-20-2007, 05:32 PM
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HaV
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Default Lots of oil in blowby:

Lately Ive had quite a bit of oil in my blowby hose, bad enough some has ran back out of my CAI. I know a little is to be expected, but it seems a little excessive. I have a tiny poof of white smoke when I start up then its gone.. Im thinking possibly valveseals leaking.. anyone else had this, and what was causing it for you?
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Old 03-20-2007, 05:38 PM
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GodAmGT00
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Default RE: Lots of oil in blowby:

Generally, I'd say a puff of smoke when you first start the car would be rings are worn, once they heat up, they expand enough that you don't get much more...

How much is a lot of blowby? You have FI right?? What about doing a Leakdown test??



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