ender 3 v1, extruder assembly broke, replaced with metal has problems feeding filament

Ender 3 v1, printer is less than 2 months old, was working good until the plastic extruder assembly broke. I ordered the red all metal upgrade, however now the extruder will make a grinding noise and refuses to feed the filament. I also purchased the upgraded filament tube. I have tried everything, if I am lucky it will print a few layers before stopping. I replaced the hot end tip, extruded 100’s of mm of filament, changed filament types doesnt matter. the extruder just wont push it…