Ok, so I noticed a small leak the other day coming out the bottom of the Jag (2002 X Type). But I need help identifying the part I need to replace. I noticed there's a large radiator hose that runs underneath the air filter. It leads to a plastic part. I think the plastic part makes a T. On the other end of the plastic part is another radiator hose. I think I need to replace that plastic part because the leak is coming from it. I hope this makes sense. Any help out there?

 

Sounds like the thermostat housing (could be wrong!). If anything goes south in that whole mess, it is honestly better to replace the whole collection of parts. When you start pulling and squeezing old parts to replace the weakest link, the next weakest link makes itself known in short order, and so on...pretty soon, you've replaced it all anyway!

 

Thanks wa3ra that's what that plastic T part is called?