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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 226 (Hydraulic Brake System) >> Repair Instructions >> Vacuum Brake Booster Check Valve and/or Hose Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: A small amount of denatured alcohol can be used as an assembly aid when installing the vacuum check valve and/or grommet. Do NOT use soap.
  1. If the vacuum hose was removed, install the vacuum hose into position on the vehicle, as noted prior to removal.
  2. If the vacuum hose was removed, connect the vacuum hose connector to the vacuum port on the intake manifold. Press the connector retainer (1) down firmly to secure the connector to the port.
    Fig 1: Identifying Vacuum Hose Connector Retainer
    GM1311220Courtesy of GENERAL MOTORS CORP.
  3. If the vacuum check valve (1) is being replaced, install a NEW grommet to the brake booster.
  4. If the vacuum check valve (1) was separated from the vacuum hose (3), install the check valve (1) to the vacuum hose (3). Install and secure the clamp (2) into position on the hose (3).
  5. Connect the brake booster vacuum check valve (1) to the brake booster.
    Fig 2: Vacuum Brake Booster Check Valve
    GM1311219Courtesy of GENERAL MOTORS CORP.