Getting ready to replace upper rear shock mounts on 2002 XKR convertible. When I took the right rear wheel off I found this aluminum curved tube was loose. It attaches to robber hoses the disappear somewhere. The rubber tone is split at one joint and not connected to anything. Anyone identify it?

Pointing to the tube of unknown.

Different angle

 

That's part of the vapor recovery system. Link.

Terrys Jaguar Parts: Carbon Canister and Purge Control 4.0 Liter V8