GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Tracker - 2WD 🢒 Engine 🢒 Engine Mechanical - 2.5L (LE8) 🢒 Engine Front Cover Replacement

Removal Procedure
  1. Drain the engine oil.
  2. Remove the throttle body and intake manifold. Refer to Intake Manifold Replacement .
  3. Remove the power steering pump drive belt. Refer to Drive Belt Replacement - Air Conditioning Compressor and Power Steering .
  4. Remove the water pump drive belt. Refer to Fan and Generator Belt Replacement .
  5. Remove the left and right cylinder head covers. Refer to Camshaft Cover Replacement - Left Side and Camshaft Cover Replacement - Right Side .

    6. Object Number: 167718 Size: SH
  6. Remove the cooling fan (3) and clutch (4). Refer to Fan Replacement in Engine Cooling.
  7. Remove the water pump pulley (1).
  8. Remove the radiator. Refer to Radiator Replacement in Engine Cooling.
  9. Remove the thermostat cap. Refer to Engine Coolant Thermostat Replacement in Engine Cooling.

    10. Object Number: 464801 Size: SH
  10. Disconnect the connector (1) to the power steering pressure switch (2).
  11. Remove the 3 bolts from the power steering pump and position out of the way.
  12. Remove the 3 bolts from the power steering pump bracket and remove bracket.
  13. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  14. Raise the vehicle.
  15. Remove the front axle housing if equipped. Refer to Front Axle Housing Replacement in Front Drive Axle.
  16. Remove the lower oil pan. Refer to Lower Oil Pan Replacement .
  17. Remove the upper oil pan. Refer to Upper Oil Pan Replacement .
  18. Lower the vehicle.

    19. Object Number: 648662 Size: SH
  19. Disconnect the crankshaft position (CKP) sensor connector.
  20. Remove the bolt and the crankshaft position (CKP) sensor.
  21. Remove the bolts and the front cover (1).

Installation Procedure
  1. Clean the sealing surfaces on the front cover, the crankcase, the cylinder block and the cylinder heads.

    2. Object Number: 648659 Size: SH
  2. Apply GM P/N 12346240 or equivalent to the front cover at the points indicated (1).

    3. Object Number: 648662 Size: SH
  3. Apply engine oil to the oil seal lip (3) and the water pump O-ring (2).

    4. 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.

  4. Install the front cover (1) and secure with the bolts.

    5. Tighten
    Tighten the bolts to 11 N·m (7.5 lb ft).

  5. Apply engine oil to the O-ring of the crankshaft position (CKP) sensor.
  6. Install the crankshaft position (CKP) sensor. Secure with the bolt.

    7. Tighten
    Tighten the bolt to 6 N·m (4.5 lb ft).

  7. Raise the vehicle.
  8. Install the upper oil pan. Refer to Upper Oil Pan Replacement .
  9. Install the lower oil pan. Refer to Lower Oil Pan Replacement .
  10. Install the front axle housing if equipped. Refer to Front Axle Housing Replacement in Front Drive Axle.
  11. Lower the vehicle.
  12. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  13. Install the power steering pump bracket. Secure with the 3 bolts.

    14. Tighten
    Tighten the bolts to 45 N·m (32.5 lb ft).

  14. Install the power steering pump. Secure with the 3 bolts.

    15. Tighten
    Tighten the bolts to 25 N·m (18.5 lb ft).


    Object Number: 464801 Size: SH
  15. Connect the connector (1) to the power steering pressure switch (2).
  16. Install the thermostat cap. Refer to Engine Coolant Thermostat Replacement in Engine Cooling.
  17. Install the radiator. Refer to Radiator Replacement in Engine Cooling.

    18. Object Number: 167718 Size: SH
  18. Install the water pump pulley (1).
  19. Install the cooling fan (3) and clutch (4). Refer to Fan Replacement in Engine Cooling.
  20. Install the cooling fan and generator drive belt (2). Refer to Fan and Generator Belt Replacement .
  21. Install the power steering pump drive belt. Refer to Drive Belt Replacement - Air Conditioning Compressor and Power Steering .
  22. Install the left and right cylinder head covers. Refer to Camshaft Cover Replacement - Left Side and Camshaft Cover Replacement - Right Side .
  23. Install the intake manifold and throttle body. Refer to Intake Manifold Replacement .