FLUID RECOMMENDATIONS AND LEVEL CHECK
See Figures 1, 2 and 3
Power steering fluid level should be checked at least once every 6,000 miles for 1964-74 vehicles or every 7,500 miles for 1975 and later models. Low fluid level usually produces a moaning sound as the wheels are turned (especially when standing still or parking) and increases steering wheel effort.
To prevent possible overfilling, check the fluid level only when the fluid has warmed to operating temperatures and the wheels are turned straight ahead (unloading the pump). If the level is low, fill the pump reservoir with suitable fluid until the fluid level measures full on the reservoir dipstick. For 1976 and earlier vehicles use DEXRON® Automatic Transmission Fluid, but 1977 and later cars require GM power steering fluid.