I am in the process of a heads/cam swap in my car. I am trying go get the fuel line off the fuel rail. How do these quick disconnects work? I got the little clip off and pushed the little rubber piece back. I can get the line to slide about a 1/4" back and forth, but not release. Is there a special tool for this? Thanks.

 

Its not a quick disconnect, you need a fuel line disconnect tool, they are like 5$ at autozone. You just take it and slide it under the connector on the line and the line will pop free.