GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Optra 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Vacuum Pump Assembly Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1962937 Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the engine cover. Refer to Engine Cover Replacement .
  3. Remove the fuel filter assembly. Refer to Fuel Filter Replacement .

    4. Object Number: 1863917 Size: SH
  4. Remove the engine wiring harness bracket.
  5. Disconnect the EGR and brake booster vacuum hoses.

    6. Object Number: 1820584 Size: SH
  6. Remove the vacuum pump.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1820584 Size: SH
  1. Install the vacuum pump.

    2. Tighten
    Tighten the vacuum pump tightening bolts to 12 N·m (8.9 lb ft).


    Object Number: 1863917 Size: SH
  2. Install the engine wiring harness bracket.
  3. Connect the EGR and brake booster vacuum hoses.

    4. Tighten
    Tighten the engine wiring harness bracket nuts to 20 N·m (14.8 lb ft).


    Object Number: 1962937 Size: SH
  4. Install the fuel filter assembly. Refer to Fuel Filter Replacement .
  5. Install the engine cover and bracket.

    6. Tighten
    Tighten the beauty cover bracket bolts to 11 N·m (97.4 lb in).

  6. Connect the negative battery cable.