GM Service Manual Online
For 1990-2009 cars only

Problem

Action

The following conditions exist:

    • The fluid is foamy or milky.
    • The fluid level is low.
    • The fluid pressure is low.
    • Inspect for air in the fluid.
    • Inspect for an internal pump leak.
    • Extremely cold temperatures will cause air bubbles if the fluid level is low.
    • If the fluid level is correct and the pump still foams, perform the following steps:
       - Remove the reservoir.
       - Inspect the reservoir for cracks.
       - If the reservoir is cracked, replace the reservoir.