How do you flush cooling system on 1997 olds aurora
Jan 5, 2011 at 9:05 AM
ERNEST CLARK
✓Experienced Mechanic
1,730 POSTS
You remove the thermostat housing and thermostat. Place heater controls on high and place a water hose in the radiator hose. Turn on water until it runs out clean. Then refill making sure to bleed the system of all air.