This may or may not help. I had the same issue. Took me 3 yrs. to figure it out. I resolved it by not pulling so close to the pump. When you pull real close to the pump, the hose / nozzle is in more of a 'V' shape (for lack of a better term) when placed into the compartment. This apparently restricts the gas flow.

Parking farther away from the pump, it will allow the hose to relax (more of a 'U' shape), and allows gas to flow.