Okay wording this differently, what is it about the pump that triggers the auto shut off feature?

If its an air pressure or vacuum sensor and there is a problem with the tube (corrosion) or with a gasket/grommet that leaks air/vacuum, could that prevent the auto shut off?

The problem occurs when other people fill her tank for her, whether its an ex-boyfriend, friend or attendant and they don't listen, assuming the pump will shut itself off. That way the local fire service have to come out and close the forecourt.

I just thought someone on a car maintenance site would have a definitive answer as to the cause. I know other vehicles have suffered from this problem in the past, usually in the US.

Edited by JohnFC2012 on 14/12/2012 at 17:38