After having some seemingly random issues, I decided it was time to take the extruder I was using apart and clean it. Removal and disassembly went well, but upon trying to load filament, I'm greeted with a clicking. Now I know this is the extruder motor, but I can't find the cause. I even took the PTFE tube and nozzle off of the other side to make sure that wasn't the issue. I've taken the part attached to the motor (with one with the idler pulley) and cleaned it as well. I've completely disassembled the entire extruder carriage , and reassembled but to no avail. It almost feels like it doesn't want to load, just before it hits the gear.

Any ideas?