Hello there

I found your post after trying to find diagrams for vacuum hoses. I hope you have now cured the fault?

However I have that same vacuum hose tie wrapped up on my 2000 XKR and it goes nowhere. It comes from a T from the bypass valve and mine is plugged with a proper plastic factory hose plug. It is not needed and goes nowhere. Maybe it is in there for some other extra, throttle body version etc. It doesn't show on any diagrams I have come across.

So just to confirm it appears it should be capped and not connected to anything.

Paul

 

 

I have that exact same stripped hose in my 2003 XKR, but I believe on my car it is plugged into the plastic air intake elbow piping; I will need to double check and see for sure.

Just a guess since I have not looked yet, and I am only certain that I have that same hose on my car in the same general location at this point, but if your throttle body was replaced with a newer model year, then maybe the mechanics left the original '99 XKR plastic air intake elbow, instead of updating it as well with the proper model year intake elbow for the throttle body, leaving nowhere to plug the hose into.

In other words, it may have originally plugged into the throttle body on a '99, but on a later model year it plugs into the intake elbow. Again, just a guess since I have not looked yet.