Help Identifying this part

[Carmen_SanDiego]

Hi, a while back I had my head gasket replaced. The day after I got the car, it started acting like it was on cruise control lots of revving without mme pressing the gas. Took it back to the shop and they said the hose had “popped off” and they put it back on. Been a few months no problem but when I went to go change my high-pressure fuel rail sensor because I was having some idle problems I noticed THIS.
It looks like they glued the vacuum hose or something? It has black residue. What did they break?

 

[Sam4]

uneducated response would be valve cover assembly. Just ordered one since my gasket runneth over....
BM5Z-6582-A $86

 

[Grsemky]

Hi, a while back I had my head gasket replaced. The day after I got the car, it started acting like it was on cruise control lots of revving without mme pressing the gas. Took it back to the shop and they said the hose had “popped off” and they put it back on. Been a few months no problem but when I went to go change my high-pressure fuel rail sensor because I was having some idle problems I noticed THIS.
It looks like they glued the vacuum hose or something? It has black residue. What did they break? View attachment 67937

That's your PCV