Vacuum Leak in drivers door

Hi,

I have started this as a new thread as i have now located the problem from a previous thread.

I have a hissing noise in the drivers door behind the card and every time i un lock the car the pse pump over runs for about 10 - 15 seconds instead of usual 3 secs.

I have had the door card removal procedure from Malcolm ( Thanks ) but before i start the removal what am i likely to find the problem is: loose nut split pipe etc and will it likely to be a easy fix as i dont want to have car un driveable.

Thanks