Broken fuel injector lock clip

[OR VietVet]

Forget what reason for open at back?

 

[Fless]

Forget what reason for open at back?

I won't pretend to know but I would think it would let water off the knock sensor rubber seal if any gets in the well that the RTV makes.

EDIT: it's in the TSB: https://www.tsbsearch.com/Chevrolet/02-06-04-023A

 

[OR VietVet]

I won't pretend to know but I would think it would let water off the knock sensor rubber seal if any gets in the well that the RTV makes.

EDIT: it's in the TSB: https://www.tsbsearch.com/Chevrolet/02-06-04-023A

View attachment 416454

I think it had something to do with "breathing". Not sure. I have seen other threads where it was done completely around it.