GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Lumina 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Drive Belt Tensioner Replacement

Removal Procedure

    Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Drain the engine coolant from the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  3. Remove the drive belt. Refer to Drive Belt Replacement .
  4. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  5. Disconnect the heater hose adapters with heater hoses from the drive belt tensioner. Refer to Heater Hoses Replacement in HVAC.

    6. Object Number: 153563 Size: SH
  6. Remove the drive belt tensioner bolts.
  7. Remove the drive belt tensioner.

    8. Object Number: 153605 Size: SH
  8. If replacing the drive belt tensioner, remove the heater water bypass inlet pipe and seal.

Installation Procedure

    Object Number: 153605 Size: SH
  1. If replacing the drive belt tensioner, lubricate the seals with engine coolant and install the heater water bypass inlet pipe and seal.

    2. Object Number: 153563 Size: SH
  2. Install the drive belt tensioner.

    3. 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.

  3. Install the drive belt tensioner bolts.

    4. Tighten
    Tighten the drive belt tensioner bolts to 50 N·m (37 lb ft).

  4. Connect the heater hose adapters with heater hoses to the drive belt tensioner. Refer to Heater Hoses Replacement in HVAC.
  5. Install the generator. Refer to Generator Replacement in Engine Electrical.
  6. Install the drive belt. Refer to Drive Belt Replacement .
  7. Fill the cooling system with engine coolant. Refer to Cooling System Draining and Filling

    8. in Engine Cooling.

  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.