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Transmission Catch Can??

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Old Sep 11, 2018 | 12:35 AM
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Default Transmission Catch Can??

I'm getting ready to install B&B bullets on my 03 z06 and find what appears to be a catch can mounted on the rear of the car. I followed one line up toward the right side of the transmission and the other one is attached to nothing. The car also has a trans and diff cooler but those lines aren't connected to this thing. Can anyone tell me why a catch can would be on the transmission, if that's what this really is.






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Old Sep 11, 2018 | 08:54 AM
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If the trans is pushed really hard (such as tracking for 30+ minutes at a time), the fluid heats up and pushes out the vent tube at the top, making a huge mess. I would wager that your vent tube is plumbed to that "catch can" to catch any spillage that occurs.
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Old Sep 11, 2018 | 01:32 PM
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Could go the DIFFERENTIAL VENT on top of the differential. I've seen diff vent leak lube when pushed hard and make a real mess.
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