1996 Pontiac Firebird Owner's Manual - Page 224

5. Close the bleed valves. 6. Continue to fill the radiator up to the base of the filler neck. 7. Rinse or wipe the spilled coolant from the engine and compartment. 8. Start the engine and allow it torun in idle for approximately four minutes. By this time, the coolant level inside radiator will be lower. Add the more of the propermix through the filler neck until the level reaches the base the filler neck. of 4. Fill with the proper mix. Add coolant until you see a steady stream of coolant coming from the bleed valves. .. .- 8 L i -. . I . : -