1996 Pontiac Grand Prix RESEIVOR COLLENT

to flush coolant start by unscrewing drain plug at bottom of radiator, let all coolant drain out. Next get a water hose and stick it in your resevoir and turn it on, now start your car and turn your heat on high let the water run through your coolant system for about 5 minutes after this shut car off take water hose out, screw drain plug back in and fill with coolant after filled star car and open bleeder valve on your coolant lines (front of motor) leave vehicle running with valve open until constant stream of coolant comes out then tighten valve down and your done ;)