Replaced the water tank/filter assembly.
Removing the original took some time because it had to be disconnected from the shelf assembly. Also took it apart in the fridge to disconnect the hoses. Should have just cut the hoses because the new assembly came with hoses and filter pre-installed.
New part installation went quickly. Just spliced the new hoses to the existing lines to the ice maker and water dispenser on the door. (had to purchase two 1/4 in plastic tubing connectors) Reused the water inlet line fitting on the new inlet hose.