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Vented catch can smoke at idle normal?

robmustang201528

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My catch can is vented with the filter on top. Is it normal for the filter to have smoke coming from the filter at idle? I had the hood up and hit the gas and noticed more smoke coming from the filter as I pressed the gas. It's not really smoke it's like a vapor. I can sometimes smell it in the cabin. Oil smell.
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Weather Man

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Normal. Mine was right under a hood vent and I could watch the vapor rise at stop signs.
 

SolarFlare

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