VR air conditioning

[SLR]

Hi, can someone direct me to where or how do I
1. change thermostat
2. change vacuum switch
3. vacuum switch hose diagram
3. is it possible for cars coolant to be contaminated by anything in the a/c system ie evaporator etc

thanks in advance

[vy_storm]

Only need for on thread thanks.

http://forums.justcommodores.com.au/...ditioning.html