emu669/670 M2 car auto coupler air leak ~~~~~ emu669/670 M2 car auto coupler air leak  Found 2670 5/2 way vavle heavy air leak when uncoupled, caused by center cylinder, c/o centre cylinder and function test ok. S/N:   Notif: 2619898 Done by: Koh, Sanip and Jack. 22/07/2024.