Following four months of overhaul at Pearl Harbor, "Pollack" put to sea for her fourth war patrol on 10 October. Before she reached her assigned area she was ordered back to Midway, arriving on 23 October. She fueled to capacity and stood out of the Midway channel that same day to patrol the approaches to Truk in an attempt to intercept crippled enemy ships believed en route to that enemy stronghold from sea battles in the Solomon Islands. There were no contacts with enemy shipping during the entire patrol and "Pollack" returned to Pearl Harbor on 29 November.