1996 Pontiac Grand Prix Owner's Manual - Page 215

10. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. Be sure the arrows on the pressure cap lineup like this. 8. Start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine fans. 9. By this time the coolant level inside the radiator If filler neck may be lower. the level is lower, add more of the proper mix through the filler neck until the level reaches the base of the filler neck. 11. Check the coolant in the recovery tank. The level in the coolant recovery tankshould be atthe HOT mark when the engine is hot or at the COLD mark when the engine is cold. 5-22