The problem with the vent removal is that it cannot be done externally. The cover has to come off as the vent makes a 90 degree turn inside the cover and is affixed from the inside. So if one wants to clean the vent and avoid removing the cover, removing the cap is the only option.

Agreed on the hose, and that is what I was thinking too.

Yeah, I need to get the car up on jacks and change the differential oil soon. It's on the list.

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