GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • EN-956-1 Handle / Extension
    • EN-6347 Bracket

For equivalent regional tools, refer to Special Tools


    Object Number: 2027506  Size: SH
  1. Fuel injection pump drive gear key (1).
  2. Note: Ensure that the recess (2) on the fuel pump drive pulley (2) and the fuel injection pump drive gear key (1) are on the same position, otherwise the sprocket could be damaged during the installation.

  3. Install fuel pump drive pulley (4).
  4. Install fuel pump drive pulley nut (3).

  5. Object Number: 2027088  Size: SH
  6. Install EN-6347 bracket and EN-956-1 handle  (2) to fix the fuel pump drive pulley (1).
  7. Caution: Refer to Fastener Caution in the Preface section.

  8. Tighten the fuel pump drive pulley nut to  70 N·m (52 lb ft) .