Finally got vehicle going again after many hours of testing vac. lines.You were spot on " Dweller" it was a disconnected line, the one that controls the movement of the headlights up or down.It was hanging loose behind the lights so hooked it back up & everything running like new again.Maybe I didn,t need a new Vac. pump at all??? Thank you all for your help & comments. Cheers Ozjock.