1997 Buick Park Avenue Owner's Manual - Page 292

Radiator Pressure Cap NOTICE: Your radiator pressure cap is a psi (105 kPa) 15 pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating.Be sure the arrows on the cap line up with the overflow tube on the radiator filler neck. When you replace your radiator pressure cap, an AC@ cap is recommended. Power Steering Fluid Thermostat Engine coolant temperature is controlled by a thermostat in the engine coolant system. The thermostat stops the flow of coolant through the radiator until thecoolant reaches a preset temperature. When you replace your thermostat, anAC@thermostat is recommended. When to Check Power Steering Fluid It is not necessary regularly check power steering to fluid unless you suspect there a leak in the systemor is you hear an unusual noise. A fluid loss in thissystem could indicate a problem. Have the system inspected and repaired. The power steering fluid reservoir on the L36 and L67 engine is located below the generator and behind the accessory drive belt on the driver's side toward therear of the engine. 6-28