GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Silhouette Ext. 🢒 Engine 🢒 Engine Mechanical - 3.1L and 3.4L 🢒 Engine Replacement

Removal Procedure
  1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .

    3. Object Number: 262805 Size: SH
  3. Remove the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
  4. Drain the engine coolant from the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  5. Disconnect the radiator hoses from the engine. Refer to Radiator Inlet Hose Replacement and Radiator Outlet Hose Replacement in Engine Cooling.
  6. Disconnect the heater hoses from the engine. Refer to Heater Hose Replacement - Inlet and Heater Hose Replacement - Outlet in HVAC Systems - Manual.
  7. Remove the engine mount struts. Refer to Engine Mount Strut Replacement .

    8. Important: Relieve the fuel pressure. Refer to Fuel Pressure Relief in Engine Controls - 3.4L.

  8. Disconnect the fuel hoses from the fuel rail. Refer to Fuel Hose/Pipes Replacement - Engine Compartment in Engine Controls - 3.4L.
  9. Remove the engine wiring harness connectors.
  10. Remove the vacuum brake booster hose. Refer to Vacuum Brake Booster Hose Replacement in Hydraulic Brakes.
  11. Remove the vacuum hoses from the engine.
  12. Remove the automatic transaxle range selector cable. Refer to Range Selector Lever Cable Replacement in Automatic Transmission/Transaxle.
  13. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  14. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  15. Remove the A/C compressor bolts and position the A/C compressor aside. Refer to Air Conditioning Compressor Replacement in HVAC.
  16. Remove the wiring harness grounds.
  17. Remove the three-way catalytic converter exhaust pipe from the right (rear) exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  18. Remove the front tires and wheels. Refer to Wheel Removal in Tires and Wheels.
  19. Remove the engine splash shields. Refer to Splash Shield Replacement - Engine in Body Front End.
  20. Remove the stabilizer shaft links from the lower control arms. Refer to Stabilizer Shaft Link Replacement in Front Suspension.
  21. Remove the tie rod ends from the steering knuckles. Refer to Steering Knuckle Replacement in Front Suspension.
  22. Remove the lower ball joints from the knuckles. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
  23. Remove the transaxle cooler lines and bracket from the transaxle. Refer to Automatic Transmission Oil Cooler Hose Replacement in Automatic Transmission/Transaxle.
  24. Disconnect the drive axles from the transaxle. Refer to Wheel Drive Shaft Replacement in Drive Axle.
  25. Secure the drive axles to the steering knuckle/struts.

    26. Caution: Failure to disconnect the intermediate shaft from the rack and pinion steering gear stub shaft can result in damage to the steering gear and/or intermediate shaft. This damage may cause loss of steering control which could result in an accident and possible personal injury

  26. Remove the pinch bolt/screw at the intermediate steering shaft. Refer to Steering Wheel and Column.
  27. Disconnect the intermediate shaft from the steering gear. Refer to Lower/Upper Intermediate Steering Shaft Replacement in Steering Wheel and Column - Tilt.
  28. Support the engine/transaxle/frame with the transaxle table.
  29. Remove the frame-to-body bolts/screws. Refer to Frame Replacement in Frame and Underbody.
  30. Lower the frame with the engine/transaxle from the vehicle.

    31. Object Number: 160967 Size: SH
  31. Remove the engine-to-transaxle bolts (3, 4, 5 and 6) and studs (1 and 2).
  32. Remove the engine flywheel to torque converter bolts. Refer to Flywheel to Torque Converter Bolt Replacement in Automatic Transmission/Transaxle.
  33. Remove the engine from the transaxle/frame to the engine stand.

Installation Procedure

    Object Number: 160967 Size: SH
  1. Install the engine to the transaxle/frame from the engine stand.

    2. 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.

  2. Install the engine-to-transaxle bolts (3, 4, 5 and 6) and studs (1 and 2).

    3. Tighten
    Tighten the engine-to-transaxle bolts (3, 4, 5 and 6) and studs (1 and 2) to 75 N·m (55 lb ft).

  3. Install the engine flywheel to torque converter bolts. Refer to Flywheel to Torque Converter Bolt Replacement in Automatic Transmission/Transaxle.
  4. Raise and install the frame with the engine/transaxle to the vehicle.
  5. Install the frame-to-body bolts/screws. Refer to Frame Replacement in Frame and Underbody.
  6. Remove the transaxle table.

    7. Caution: When installing the intermediate shaft make sure that the shaft is seated prior to pinch bolt installation. If the pinch bolt is inserted into the coupling before shaft installation, the two mating shafts may disengage. Disengagement of the two mating shafts will cause loss of steering control which could result in personal injury.

  7. Connect the intermediate shaft to steering gear. Refer to Lower/Upper Intermediate Steering Shaft Replacement in Steering Wheel and Column - Tilt.
  8. Connect the drive axles to the transaxle. Refer to Wheel Drive Shaft Replacement in Drive Axle.
  9. Install the transaxle cooler lines and bracket to the transaxle. Refer to Automatic Transmission Oil Cooler Hose Replacement in Automatic Transmission/Transaxle.
  10. Install the A/C compressor. Refer to Air Conditioning Compressor Replacement in HVAC.
  11. Install the lower ball joints to the knuckles. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
  12. Install the tie rod ends to the steering knuckles. Refer to Steering Knuckle Replacement in Front Suspension.
  13. Install the stabilizer shaft links to the lower control arms. Refer to Stabilizer Shaft Link Replacement in Front Suspension.
  14. Install the engine splash shields. Refer to Splash Shield Replacement - Engine in Body Front End.
  15. Install the front tires and wheels. Refer to Wheel Installation in Tires and Wheels.
  16. Install the three-way catalytic converter exhaust pipe to the right (rear) exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  17. Install the wiring harness grounds.
  18. Lower the vehicle
  19. Install the automatic transaxle range selector cable. Refer to Range Selector Lever Cable Replacement in Automatic Transmission/Transaxle.
  20. Install the vacuum brake booster hose. Refer to Vacuum Brake Booster Hose Replacement in Hydraulic Brakes.
  21. Install the vacuum hoses to the engine.
  22. Install the engine wiring harness connectors.
  23. Connect the fuel hoses to the fuel rail. Refer to Fuel Hose/Pipes Replacement - Engine Compartment in Engine Controls - 3.4L.
  24. Install the accelerator cable bracket to the throttle body. Refer to Accelerator Control Cable Bracket Replacement in Engine Controls 3.4L.

    25. Caution: In order to avoid possible injury or vehicle damage, always replace the accelerator control cable with a NEW cable whenever you remove the engine from the vehicle.

    In order to avoid cruise control cable damage, position the cable out of the way while you remove or install the engine. Do not pry or lean against the cruise control cable and do not kink the cable. You must replace a damaged cable.

  25. Install a NEW accelerator control cable. Refer to Accelerator Control Cable Replacement in Engine Controls - 3.4L.
  26. Install the engine mount strut. Refer to Engine Mount Strut Replacement .
  27. Connect the heater hoses to the engine. Refer to Heater Hose Replacement - Inlet and Heater Hose Replacement - Outlet in HVAC Systems - Manual.
  28. Connect the radiator hoses to the engine. Refer to Radiator Inlet Hose Replacement and Radiator Outlet Hose Replacement in Engine Cooling.
  29. Fill the cooling system with engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  30. Adjust the transaxle fluid level. Refer to Transmission Fluid Check , Fluid Capacity Specifications , Approximate Fluid Capacities in Maintenance and Lubrication and Fluid and Lubricant Recommendations in Maintenance and Lubrication.
  31. Fill the engine with oil. Refer to Engine Oil and Oil Filter Replacement .

    32. Object Number: 262805 Size: SH
  32. Install the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls - 3.4L.
  33. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  34. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  35. Perform the CKP system variation learn procedure. Refer to Crankshaft Position System Variation Learn in Engine Controls - 3.4L.
  36. Inspect for proper fluid levels and possible fluid leaks.