Chassis Air Conditioning Problem
This may be a stupid question but here goes. I have a 2005 Sightseer on Ford chassis. On normal air conditioning it seems to work OK but when on Max there is less air from the vents and most going out the defrost vents. The funny part is I can actually hear an air leak at the vacuum/electric switch on the dash in the "off" or "Max AC" position only. In the normal, vent, floor position I don't hear these leaks. Is actually hearing the air leak something that is standard/normal or is replacing the vacuum/electric switch a good place to start?
Thanks for any assistance