I was going to change the gas filter on my 2003 F-150 4.6 V8. The front clip was the round garter spring. I removed that one easily with the correct tool. The back line had a different type clip. It was a white plastic type clip and I still do not know how to remove it. After about an hour of trying to remove this clip i gave up and put the front line back on. Anyone have any idea what the rear clip is and how to remove it? Thanks in advance for any tips or suggestions.