Peg Perego JD XUV 6X4 Gator IGOD055 HELP

Although I don't know a lot about these toys. A neighbor gave me 6 X 4 Gator, and the shifter was bad I replaced. Now when you press the accelerator it gives a long and nothing. But not all the time sometimes it goes. I took the pedal apart and I'm not sure I put it together right. Does anyone know the part number for a new pedal.

I did see something somewhere on the Internet saying a long beep means the battery is weak or dead. When I work on it it has 100% battery.

I made a mistake of showing it to my three year old grandson, so any help would greatly be appreciated to get this thing on the road.