Ive got a 2003 gu that ive only had for about a month so learning stuff along the way.
I noticed some gunk build up in the corner of the intercooler so i removed the engine cover to have a look and a slight clean.
Upon removing the cover i could see the intercooler hoses and there was a few hose clamps what seems to be an extra bit of hose in a few places(i may be wrong) could anyone shed some light on wether this is normal and what could be the reason for the gunk build up. Please see pictures.


I also have a kinda tapping slightly high pitched noise at idle. Please see video.

Any help would be greatly appreciated!
Cheers in advance!