Antifreeze

Do this only if the engine is cold.Set the heater on.Remove the coolant expansion tank cap , place a suitable container under the radiator area , Look under the radiator (bottom rear side) for a plastic screw and loosen this by hand . Move swiftly not to get wet.Remove the bleeding screw on the top radiator hose.Flush the system with a coolant flush solution if the coolant is really dirty.Refit the drain plug , refill anti freeze (check with your parts supplier for the recommended ratio for your area(or your dealer)and top up with water.Run the engine and close the bleed screw once water comes out and replace the cap.Warm the vehicle up and remove the cap when it has cooled down again.Check coolant level and top up.Reset the heater off(if its summer there.)

how do I replace the rear freeze plug in a 91 old silhouette van