1998 Pontiac Firebird Owner's Manual - Page 284

Radiator Pressure Cap(All Engines) Power Steering Fluid The power steering fluid reseivoir islocatei toward the backof the engine on the driver's side. I NOTICE: Your radiator cap is an psi (124 kPa) 18 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, a GM cap is recommended. When to Check Power Steering Fluid It is not necessaryto regularly check power steering fluid Thermostat Engine coolant temperature controlled by a thermostat is in the engine coolant system. thermostat stopsthe The flow of coolant through the radiator until the coolant reaches a preset temperature. When you replace your thermostat, a GM thermostat is recommended. unless you suspect there is leak in the system or you hear a an unusual noise. A fluid loss inthis system could indicate a problem. Have the system inspectedand repaired. How To Check Power Steering Fluid When the engine compartment is cool, wipe the cap and the topof the reservoirclean, then unscrew the cap and wipe the dipstick with a clean rag. Replacecap and the completely tighten it. Then remove the again and cap look at the fluid level on dipstick. the 6-31