Changing out lots of hoses on my 1988 XJS. Saw this bulbous black thing to left of oil fill cap. It has split in it around it's base so i'm wondering if i need to replace it? Weird clamp on it around the base. Thanks for the help!



1988 XJS - Sent from my LG-G2 using IB AutoGroup

 

i believe that is for purposes of PCV.

 

Part number C44386 breather cap. I'd replace it, yes. Google the part number; shouldn't be hard to find. Clean the breather pipe as well.

It's #6 in this illustration

Breather Housing-5.3 Litre - Parts For XJS from (V)139052 to (V)179736 | Jaguar Classic Parts UK

Cheers
DD

 

Thanks M90! Thanks Doug!

1988 XJS - Sent from my LG-G2 using IB AutoGroup