Vauxhall vectra 1997 stalling after water hose burst?

My vauxhall Vectra 1.8 1997 had a split in the water hose leading to the radiator whilst hot and drained much of the water, I first noticed when steam poured out along the motorway.
I have repaced hose/water but have found that the car starts fine but if I drive a few miles get out of the car for a few minutes drive away it will stall at almost the first stop such as junction .
Iwould be gratefull of any ideas.