How to Troubleshoot & Replace Ge AP4390010 / WD12X10284 Fill Cap Assembly

Everything went fine snap snap fizz fizz it was all over with 

Our dishwasher was missing two of the six wheels. I ordered the wheels, and for good measure, the drying agent lid. I think I ordered on a Friday and it arrived on a Saturday. The repair was simple as they just clipped on and screwed in, respectively. 

I changed the rinse tank and now everything works fine. 

Replace parts and know works great. The U-Tube Video was a great help. 

With the new fill cap and pipe thread tape and now it fits perfectly. 

Purchased a new replacement cap from ApplianceParts.com