1996 Pontiac Trans Sport Owner's Manual - Page 278

Radiator Pressure Cap NOTICE: Power Steering Fluid I I Your radiator capis a 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine j damage from overheating. Be sure the arrows on the cap line up with the overflow tube on the filler radiator neck. I When you replace your radiator pressure cap, anAC@ cap isrecommended. I 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 the coolant reaches a preset temperature. When you replace your thermostat, an AC@thermostat is recommended. The power steering fluid reservoir is located tothe right of the engine coolant reservoir, at the back of the engine compartment. 6-22 I h