Is there supposed to be a vacuum cap here?

[TominAZ]

Hello, I'm not sure what this port is for.

It could be pressure relief, so I thought I would ask. Thanks!

View attachment 158913

 

[TominAZ]

Never mind I was finally able to pull a picture from Google. It seems these canisters are very different across years and models. It is as it should be.

 

[Chris]

Weird, the original image doesn't work.

 

[TominAZ]

I'll try again. Its amazing how these pics show up in context in Google image searches. This will be the only one from a 1997 TJ Sport if it works.