GM Service Manual Online
For 1990-2009 cars only

Hissing Noise In Steering Gear for Pontiac Grand Am 1998

Some noise is heard in all power steering systems. There is no relationship between the hissing noise and steering performance.

Important: Do not replace the valve and the pinion unless the hissing noise is extreme. A replacement valve and pinion also have a slight noise. Replacing the valve and pinion will not always cure the hissing noise.

Condition

Causes

Hissing Noise

    • The steering wheel is turned.
    • The brakes are applied.
    • The vehicle is not moving.
    • The intermediate shaft joints may be loose.