1996 Buick Century Owner's Manual

10. Then replace thepressure cap. At anytime during thisprocedure if coolantbegins to flow out ofthe filler neck, reinstallthe pressure cap. Besure the arrows on thepressure cap line uplike this.8. Start the engine and let it run until you can feel theupper radiator hose getting hot. Watch out for theengine fan.9. By this time the coolant level inside the radiatorfiller neck may be lower. If the level is lower, addmore of the proper mix through the filler neck untilthe level reaches the base of the filler neck.11. Check the coolant in the recovery tank. The level inthe coolant recovery tank should be at the HOTmark when the engine is hot or at the COLD markwhen the engine is cold.5-23