Fule pump disconnect tool

Is the one your using metal? I use the plastic ones because you can manipulate it into that quick connect easier than the metal ones. Also if the tool your using is a two piece disconnect tool try to put one piece in at a time, then push into connector, always remember to push the line into your tool while pushing your tool into line at same time then pull line back disconnecting it. Let me know if this helps.

Thank you for the suggestions. The tool I purchased was made by Lisle, O'Rielly's Auto Parts: Part # 39400 - see attached picture. Carquest also sells this item - It came as a set of different sizes, all plastic, and stacked on a holder - It looked sort of like a child's Fisher Price toy, each tool was a single part with a slit so that it could be spread over a line. Would seem to work fine if there was another 1/2 inch of exposed line. As time was getting short, and the old pump was no good, I reverted to a more distructive method of removal. I used a small hand saw and cut the hose barbs at the fuel pump to free the fuel lines. Once the tank was out of the truck I then easily removed the hose barbs. The tool, at this point, was easily slipped over the hose barb and pressed into the fitting - I ran a sheetmetal screw into the end of the exposed hose barb just to have something easy to grab while the tool was inserted. I still do not know how this tool would have fit as originally intended. Hopefully I won't ever need to remove a good fuel pump.

Im glad you got the project done, I actually have a set of Matco disconnect tools that has a 2 piece tool that you put 1 piece at a time in then push aand disconnect, It is super small profile, made for those stubborn short lines that standard tools wont fit in. Thanks for the feedback and like you said hopefully you wont be needing those tools any time soon.