Coolant change ZB Commodore

[dengee]

I have a 2 litre turbo petrol , and need advice on whether they have a air bleed screw to burb the coolant system
Also how do you get all the fluid out of the system, including the heater radiator . I have located the drain plug for the radiator.

Thanks Dennis

 

[greenacc]

For most cars you can't drain all the old coolant out unless you want to pull everything apart.

 

[losh1971]

If you can remove the thermostat, pull a heater pipe, so that water runs out, and on the ground and have a tool that goes over the rad neck, then run a hose on reasonable pressure and have the engine running you can flush the entire system. This is pretty much what a rad tech does when flushing a cooling system.

I made up tool to do my old V6. These days I just pay $140 to have someone else do it.