GM Service Manual Online
For 1990-2009 cars only

Drive Belt Replacement VIN K

Removal Procedure

The accessory drive belt drives all engine mounted accessories. All driven accessories are rigidly mounted to the engine. Drive belt tension is maintained by a spring loaded belt tensioner. A belt squeak when the engine is started or stopped is normal and has no effect on belt durability. The drive belt tensioner can control belt tension over a broad range of belt lengths; however, there are limits to the tensioner's ability to compensate. Using the tensioner outside of its operating range can result in poor tension control and/or damage to the tensioner.

    Important: Ensure that the wood block extends past the width of the oil pan in order to avoid damage.

  1. Use a jack with a block of wood on the jack under the oil pan in order to support the engine.
  2. Remove the engine mount to engine mount bracket nuts.
  3. Remove the engine mount bracket front upper and lower nuts.

  4. Object Number: 61726  Size: SH
  5. Remove the engine mount bracket front upper and lower studs and spacer.

  6. Object Number: 61742  Size: SH
  7. Lower the engine as necessary and rotate the tensioner to remove the drive belt.

  8. Object Number: 41363  Size: SH
  9. Remove the drive belt.

Installation Procedure


    Object Number: 41363  Size: SH
  1. Install the drive belt.

  2. Object Number: 61726  Size: SH
  3. Install the engine mount bracket front upper and lower studs and spacers.

  4. Object Number: 61742  Size: SH

    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.

  5. Install the engine mount bracket front upper and lower nuts.
  6. Tighten
    Tighten the nuts to 78 N·m (58 lb ft).

  7. Install the engine mount to engine mount bracket nuts.
  8. Tighten
    Tighten the nuts to 87 N·m (64 lb ft).

  9. Remove the floor jack.

Drive Belt Replacement VIN 1

Removal Procedure

The supercharged 3800 engine uses two accessory drive belts. The outer belt drives the supercharger. The inner belt drives the generator, power steering pump, coolant pump and air conditioning compressor. All driven accessories are rigidly mounted to the engine. Drive belt tension is maintained by the spring loaded belt tensioners. Each belt has its own tensioner.

A belt squeak when the engine is started or stopped is normal and has no effect on belt durability. The drive belt tensioner can control belt tension over a broad range of belt lengths due to stretching; however, there are limits to the tensioners ability to compensate. Using the tensioner outside of its operating range can result in poor tension control and/or damage to the tensioner. The belt should be replaced when this condition occurs.

    Important: Ensure that the wood block extends past the width of the oil pan in order to avoid damage.

  1. Use a jack with a block of wood on the jack under the oil pan in order to support the engine.
  2. Remove the engine mount to engine mount bracket nuts.
  3. Remove the engine mount bracket front upper and lower nuts.

  4. Object Number: 61726  Size: SH
  5. Remove the engine mount bracket front upper and lower studs and spacer.

  6. Object Number: 61742  Size: SH
  7. Lower the engine as necessary and rotate the tensioner to remove the drive belt.

  8. Object Number: 48488  Size: SH
  9. Remove the supercharger belt.

  10. Object Number: 49787  Size: SH
  11. Remove the drive belt.

Installation Procedure


    Object Number: 49787  Size: SH
  1. Install the drive belt.

  2. Object Number: 48488  Size: SH
  3. Install the supercharger belt.

  4. Object Number: 61726  Size: SH
  5. Install the engine mount bracket front upper and lower studs and spacers.

  6. Object Number: 61742  Size: SH

    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.

  7. Install the engine mount bracket front upper and lower nuts.
  8. Tighten
    Tighten the nuts to 78 N·m (58 lb ft).


    Object Number: 61726  Size: SH
  9. Install the engine mount bracket nuts.
  10. Tighten
    Tighten the nuts to 87 N·m (64 lb ft).

  11. Remove the floor jack.