This past weekend, we moved to a new house. I'd driven the Mustang a few weeks prior so driving it over to the new house seemed like the easiest part of the process. The Mustang was a little tough to start but I got it going and out of the driveway. However, once I started to drive down the road, it seemed to stumble and required quite a bit of gas to keep running. It then almost died at the end of the street when I went to turn. When I stopped at the next stop sign, the car died and would not restart.
I lifted the hood and started thinking of what might be wrong. I looked down the carb and moved the throttle linkage. I noticed the accelerator pump nozzle wasn't squirting out any gas. I walked back to the house, got a gas can, and put a little down the carb and tried to start it. It started immediately but then seemed to hesitate when I attempted to take off. If I didn't press the gas, it would idle no problem so it just seemed to be the accelerator pump.
I decided to drive it over and just give it quite a bit of gas when accelerating and planned to just go a route that would not require many stops. I made it to the new house with this approach. Once at the new house, I checked again and the accelerator pump nozzle still wasn't working. Content that I knew what was wrong, I started working on moving everything else.