GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1998 🢒 DeVille 🢒 Engine 🢒 Engine Controls - 4.0L and 4.6L 🢒 Evaporative Emission Canister Purge Solenoid Valve Replacement

Removal Procedure

    Object Number: 20426 Size: SH
  1. Remove the intake manifold top cover.

    2. Object Number: 277964 Size: SH
  2. Remove the solenoid quick-connect fitting at the EVAP canister purge solenoid (2). Refer to Plastic Collar Quick Connect Fitting Service
  3. Remove the solenoid quick-connect fitting from the EVAP canister purge solenoid to the enhanced EVAP service port (5).
  4. Remove the electrical connector at the EVAP canister purge solenoid. (4)
  5. Remove the EVAP canister purge solenoid valve bolt (1).

    6. Object Number: 277905 Size: SH
  6. Remove the EVAP canister purge solenoid tab from the bracket.

Installation Procedure

    Object Number: 277964 Size: SH
  1. Install the EVAP canister purge solenoid valve (4) to the bracket (3).

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the EVAP canister purge solenoid valve bolt (1).

    3. Tighten
    Tighten the bolt to 12 N·m (106 lb in).

  3. Install the solenoid quick-connect fitting at the EVAP canister purge solenoid (2). Refer to Plastic Collar Quick Connect Fitting Service .
  4. Install the solenoid quick-connect fitting from the EVAP canister purge solenoid to the enhanced EVAP service port (5).
  5. Install the electrical connector to the EVAP canister purge solenoid (4).

    6. Object Number: 20426 Size: SH
  6. Install the intake manifold top cover.

    7. Tighten
    Tighten the bolt to 3  N·m (27 lb in).