1997 Pontiac Grand Prix Owner's Manual - Page 255

[ON: You can be burned if spill coolant on hot you engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. 3.1L V6 (VIN Code M): There are two bleed valves. One is located on the thermostat housing. The other is located on the thermostat bypass tube. 3800 V6 (VIN Code K) & 3800 V6' supercharged engine (VIN Code 1): There is one bleed valve. It is locatedon the thermostathousing. 4. Fill the with the proper mix, up to the base of the filler neck. If you see a stream of coolant coming from an air bleed valve, closethe valve. Otherwise, close the valves after theradiator is filled. 5. Rinse or wipe any spilled coolant from the engine and the compartment. 3. After the engine cools, open the coolant air valve. bleed 5-21