GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Engine 🢒 Engine Mechanical - 4.4L 🢒 Engine Front Cover Replacement

Removal Procedure

    Object Number: 1614621 Size: SH
  1. Drain the engine cooling system. Refer to Cooling System Draining and Filling.
  2. Drain the charge air cooling system. Refer to Charge Air Cooling System Draining and Filling.
  3. Remove the supercharger assembly. Refer to Supercharger Replacement.

    4. Object Number: 1649745 Size: SH
  4. Remove the water outlet housing. Refer to Water Outlet Housing Replacement.
  5. Remove the air conditioning, power steering, and water pump drive belt. Refer to Water Pump and Air Conditioning Compressor and Power Steering Pump Belt Replacement.
  6. Remove the air conditioning, power steering, and water pump drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Air Conditioning, Power Steering, and Water Pump.
  7. Remove the air conditioning, power steering, and water pump drive belt idler pulley. Refer to Belt Idler Pulley Replacement.
  8. Remove the supercharger drive belt tensioner. Refer to Supercharger Belt Tensioner Replacement.
  9. Remove the supercharger drive belt idler pulley that mounts to the front cover. Refer to Belt Idler Pulley Replacement - Supercharger.
  10. Remove the front engine compartment sight shield. Refer to Front Compartment Sight Shields Replacement.
  11. Remove the electric cooling fan assembly. Refer to Engine Coolant Fan Replacement.
  12. Remove the charge air cooling coolant pump. Refer to Charge Air Cooler Coolant Pump Replacement.
  13. Remove the charge air cooler radiator inlet and outlet hoses. Refer to Charge Air Cooler Inlet Hose Replacement and Charge Air Cooler Outlet Hose Replacement.

    14. Object Number: 1649749 Size: SH
  14. Remove the heater hose from the thermostat housing. Refer to Heater Outlet Hose Replacement.
  15. Remove the radiator hose from the thermostat housing. Refer to Radiator Outlet Hose Replacement.
  16. Remove the generator drive belt. Refer to Generator Drive Belt Replacement.
  17. Remove the generator drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Generator.
  18. Remove the water pump pulley. Refer to Water Pump Replacement.

    19. Object Number: 1614617 Size: SH
  19. Remove the crankshaft balancer (2). Refer to Crankshaft Balancer Removal.
  20. Ensure that you do not lose the oil pump drive to crankshaft balancer friction washer (3) that may come off with the balancer.

    21. Object Number: 1649677 Size: SH
  21. Remove the engine front cover bolts (3).
  22. Remove the engine front cover (2).
  23. Remove and discard the engine front cover gasket (1).
  24. If replacing the front cover, remove the water pump, thermostat, and front cover fitting. Refer to Engine Front Cover Disassemble.
  25. Clean and inspect the front cover. Refer to Engine Front Cover Cleaning and Inspection.
  26. Clean and inspect the front cover mating surface.

Installation Procedure

    Object Number: 1674308 Size: SH
  1. Ensure that the oil pump drive to crankshaft balancer friction washer is in place.

    2. Object Number: 928307 Size: SH
  2. If previously removed, install the water pump, the thermostat, and the front cover fitting. Refer to Engine Front Cover Assemble.
  3. Place a small amount of sealant at the split line of the upper and lower crankcases (1). Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

    4. Object Number: 928304 Size: SH
  4. Place the NEW engine front cover gasket over the crankcase dowel pins.

    5. Object Number: 1651531 Size: SH
  5. Place a small amount of sealant at the engine front cover gasket pad area located on top of the split line of the upper and lower crankcases (1). Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

    6. Object Number: 1649677 Size: SH
  6. Place the engine front cover (2) in position on the crankcase.
  7. Apply the thread locking compound to the threads of the engine front cover bolts (3). Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

    8. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1651534 Size: SH
  8. Tighten the engine front cover bolts in the sequence shown.

    9. Tighten
    Tighten the engine front cover bolts in proper sequence to 15 N·m (11 lb ft).


    Object Number: 1614617 Size: SH
  9. Install the crankshaft balancer (2). Refer to Crankshaft Balancer Installation.

    10. Object Number: 1649749 Size: SH
  10. Install the water pump pulley. Refer to Water Pump Replacement.
  11. Install the generator drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Generator.
  12. Install the generator drive belt. Refer to Generator Drive Belt Replacement.
  13. Install the radiator hose to the thermostat housing. Refer to Radiator Outlet Hose Replacement.
  14. Install the heater hose to the thermostat housing. Refer to Heater Outlet Hose Replacement.
  15. Install the charge air cooler radiator inlet and outlet hoses. Refer to Charge Air Cooler Inlet Hose Replacement and Charge Air Cooler Outlet Hose Replacement.
  16. Install the charge air cooling coolant pump. Refer to Charge Air Cooler Coolant Pump Replacement.
  17. Install the electric cooling fan assembly. Refer to Engine Coolant Fan Replacement.
  18. Install the front engine compartment sight shield. Refer to Front Compartment Sight Shields Replacement.
  19. Install the supercharger drive belt idler pulley. Refer to Belt Idler Pulley Replacement - Supercharger.

    20. Object Number: 1649745 Size: SH
  20. Install the supercharger drive belt tensioner. Refer to Supercharger Belt Tensioner Replacement.
  21. Install the air conditioning, power steering, and water pump drive belt idler pulley. Refer to Belt Idler Pulley Replacement.
  22. Install the air conditioning, power steering, and water pump drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Air Conditioning, Power Steering, and Water Pump.
  23. Install the air conditioning, power steering, and water pump drive belt. Refer to Water Pump and Air Conditioning Compressor and Power Steering Pump Belt Replacement.
  24. Install the water outlet housing. Refer to Water Outlet Housing Replacement.

    25. Object Number: 1614621 Size: SH
  25. Install the supercharger assembly. Refer to Supercharger Replacement.
  26. Fill the charge air cooling system with coolant. Refer to Charge Air Cooling System Draining and Filling.
  27. Fill the engine cooling system with coolant. Refer to Cooling System Draining and Filling.
  28. Check the front cover, the engine cooling system, and the charge air cooling system for leaks.