2009 Buick LaCrosse Owner's Manual - Page 298

2009 Buick LaCrosse Manual

Page 298 highlights

How to Add Coolant to the Cooling System (3.8L V6 Engine) 1. You can remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. 2. Then keep turning the pressure cap, but now push down as you turn it. Remove the pressure cap. 3. Open the coolant air bleed valve located on the thermostat housing, near the upper radiator hose. Turn the pressure cap slowly counterclockwise until it first stops. Do not press down while turning the pressure cap. If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left. See Engine Compartment Overview on page 5-12 Engine Compartment Overview for more information on location. 5-28

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