My trusty old Cavalier has been overheating. The fan wasn't cutting inwhen it should, but the aircon was working fine - nice and cold. ( I believe the same system was fitted to early Vectras and Omegas too )
I shorted out the wires from the 3 pin fan switch, and the fan ran.
So, I changed both the 3 pin and the 2 pin switch with new items from AutoVaux. I now have both fans running when the engine gets hot, as advertised, and both run when aircon switch is pressed BUT the aicon isn't running - the air remains at ambient, despite the aircon light coming on.
Help?