GM Service Manual Online
For 1990-2009 cars only

Problem

Action

The hoses are kinked.

  1. Route the hoses properly. Refer Power Brake Booster Inlet Hose Replacement or Power Brake Booster Outlet Hose Replacement .
  2. If the kink cannot be removed, replace the hoses as necessary. Refer Power Brake Booster Inlet Hose Replacement or Power Brake Booster Outlet Hose Replacement .

A foreign object is stuck in the hoses.

  1. Remove the foreign object.
  2. If the object cannot be removed, replace the hoses as necessary. Refer Power Brake Booster Inlet Hose Replacement or Power Brake Booster Outlet Hose Replacement .