ok all hoses i could get to are ok, disconnected pump from car and applied 12 volts, the pump runs fine, not sure how much suction for the vacuum is needed, didnt seem very strong vacuum to me. pedal switches seem ok, the long hose from pedal to pump, not too sure about, i applied a vacuum using my lungs, lol and it seems ok, but maybe thats where the trouble is. dont fancy renewing that if i can help it. any more ideas anyone? cheers