GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Lucerne 🢒 HVAC 🢒 HVAC - Automatic 🢒 Drive Belt Tensioner Replacement

Removal Procedure

    Object Number: 1660276 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the drive belt. Refer to Drive Belt Replacement .
  3. Remove the right engine mount strut. Refer to Engine Mount Strut Replacement - Right Side .
  4. Discharge the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging .
  5. Disconnect the A/C compressor suction hose from the A/C evaporator hose. Discard seal and reposition hose.
  6. Remove the drive belt tensioner bolt.
  7. Remove the drive belt tensioner.

Installation Procedure

    Object Number: 1660276 Size: SH
  1. Position the drive belt tensioner to the left cylinder head. Ensure the anti-rotation pin is in the hole.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the drive belt tensioner bolt.

    3. Tighten
    Tighten the bolt to 50 N·m (37 lb ft).

  3. Install the drive belt. Refer to Drive Belt Replacement .
  4. Install new seal. Connect the A/C compressor suction hose to the A/C evaporator hose.
  5. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  6. Install the right engine mount strut. Refer to Engine Mount Strut Replacement - Right Side .
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .