4.2 coolant flushing, do I need to remove thermost
I have warmed up motor, drained, filled with flush and water, run for 10 mins, drained, and now run with straight water for 10 mins.
I still want to just flush out the block, but figure it will be mostly just sediment and crap, not coolant that will run out onto the ground.
Whcih radiator hose do I want to put my garden hose into, top or bottom?
I'd assume top, but won't the thermostat close because of the cold water and stop the system from flushing?
Do I need to remove the thermostat and reinstall the cover and flush? I already have a new 195 degree thermostat and gasket to install, so I will need to pull the old one at some point anyhow.