On 9 May while making a submerged attack on a convoy of four cargo ships, a bomb close astern forced Pogy to retire.

Pogy sighted an aircraft ferry steaming for Truk, and sank the 7,497-ton Mongamigawa Maru and her valuable cargo 1 August.

The submarine then departed the area, stopping at Johnston Island for fuel on the 14th, and arriving at Pearl Harbor two days later for refit.

En route, on 7 December, she sighted a large cargo ship and a submarine tender escorted by a destroyer.

During the morning of 10 February, she spotted a convoy in Bashi Channel, off the southern tip of Formosa, guarded by three Japanese destroyers.

Pogy then headed north up the east coast of Taiwan and, on 20 February, caught a convoy on the Tropic of Cancer.

Three days later in Ryukyu waters, Pogy sank another cargo ship, before heading for Pearl Harbor, arriving 8 March 1944.

She departed Pearl Harbor 1 June for a West Coast navy yard overhaul, arriving at Hunter's Point Naval Shipyard, San Francisco.

After a training period, she got underway 13 October for her seventh war patrol, in the Ryukyu (Nansei) islands and waters south of Japan, but made no contacts before returning to Midway 2 December.

On 19 April 1945, she was on lifeguard duty in the Pacific Ocean southeast of Honshu, Japan, at 32°59′N 139°58′E / 32.983°N 139.967°E / 32.983; 139.967 when a United States Army Air Forces B-24 Liberator mistakenly strafed her and dropped a bomb which detonated as she passed through a depth of 30 feet (9.1 m) while submerging.

[9] On 29 April Pogy rescued ten Army aviators from the downed B-29 Superfortress The Queen Bee, and got underway for Saipan to transfer them.

On 2 July Pogy departed Pearl Harbor for the Sea of Japan on her tenth and final war patrol.