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Old 11-04-2018, 07:11 AM   #12
hotlap


 
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Drives: 20 1LE 2SS M6 Rally Green
Join Date: Mar 2014
Location: Franklin WI
Posts: 6,632
Quote:
Originally Posted by camaroJD View Post
I never realized this was a problem in cold climates but it makes sense. I'm re-thinking using the catch can I just bought. Just out of curiosity, what brand was yours?
I had a Mishimoto can on my 16.

Quote:
Originally Posted by Warrior102 View Post
I would dig into that a little deeper Hotlap, it sounds like you have other problems if that much fuel is showing up you can smell it. I'd have the dealer do a leak down test on the injection system. Having water condense in the vent system and even on the inside of the fill cap is quite normal this time of the year especially if you do short trips.
The PCV system uses the intake manifold vacuum to remove fumes from the crank case. Those fumes are blow-by leakage of the air/fuel mixture from the combustion process. If the can fills up with water, the crank case can’t vent and that mixture condenses into the oil pan. If the pressure gets too high, you can blow seals.

The Mishimoto can is small so I checked it often. When I found it full of water twice (week intervals) and the oil loaded with gas, I took it off at 7,300 miles. I didn’t have the problem again in the 20,000 miles and two winters I drove the 2016.

I did the first oil change on my new 2018 yesterday. The Mishimoto can is sitting on a shelf and I won’t put it on. I really should sell it.
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Last edited by hotlap; 11-04-2018 at 07:22 AM.
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