SM4's fuel pump ( @ top of tank ) lacks a hose ( above filter bag ) to
From TE Cheah@21:1/5 to All on Mon Jul 26 21:16:16 2021
If petrol is just 40% ( per gauge ) of tank, car must not face down 20⁰ or more, as on a downward slope. If just 25% full, then must not face down 10⁰ or more, or pump will not suck in petrol, so engine will stall.