For 1990-2009 cars

### Removal Procedure

1. Drain the engine cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
2. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
3. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
4. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .
5. Remove the power steering pump with lines. Move the power steering pump aside. Refer to Power Steering Pump Replacement in Power Steering System.
6. Disconnect the thermostat bypass pipe from the engine front cover. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.
7. Disconnect the radiator outlet hose from the front cover. Refer to Radiator Outlet Hose Replacement in Engine Cooling.
8. Remove the coolant pump pulley. Refer to Water Pump Replacement in Engine Cooling.
9. Remove the crankshaft position sensor wiring harness bracket from the engine front cover.
10. Remove oil pan. Refer to Oil Pan Replacement .
11. Remove the engine front cover bolts (1,2,3).
12. Remove the engine front cover.
13. Remove the engine front cover gasket.
14. Clean the engine front cover and engine block gasket sealing surfaces. Refer to Engine Front Cover Cleaning and Inspection in the Engine Unit Repair Manual.
15. Inspect the engine front cover for damage to the engine front cover, crankshaft front oil seal or the gasket sealing surface. Refer to Engine Front Cover Cleaning and Inspection in the Engine Unit Repair Manual.
16. If you are replacing the engine front cover, remove the drive belt shield.
17. If you are replacing the engine front cover, remove the crankshaft position sensor from the engine front cover. Refer to Crankshaft Position Sensor Replacement in Engine Controls-3.4L.
18. If you are replacing the engine front cover, remove the coolant pump from the engine front cover. Refer to Water Pump Replacement in Engine Cooling.

### Installation Procedure

1. If removed, install the coolant pump to the engine front cover. Refer to Water Pump Replacement in Engine Cooling.
2. If removed, install the crankshaft position sensor to the engine front cover. Refer to Crankshaft Position Sensor Replacement in Engine Controls-3.4L.
3. If removed, install the drive belt shield.

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 drive belt shield bolt.

Tighten
Tighten the drive belt shield bolt to 10 N·m (89 lb in).

5. Install the engine front cover gasket.
6. Apply sealer GM P/N 12346004, (Canadian P/N 10953480) or equivalent to both sides of the lower tabs of the engine front cover gasket, and the engine front cover bolts.
7. Install the engine front cover.
8. Install the engine front cover bolts (2).

Tighten
Tighten the engine front cover bolts (2) to 55 N·m (41 lb ft).

9. Install the engine front cover bolts (3).

Tighten
Tighten the engine front cover bolts (3) to 55 N·m (41 lb ft).

10. Install the engine front cover bolts (1).

Tighten
Tighten the engine front cover bolts (1) to 27 N·m (20 lb ft).

11. Install the crankshaft position sensor wiring bracket.
12. Install the crankshaft position sensor wiring bracket bolt.

Tighten
Tighten the crankshaft position sensor wiring bracket bolt to 27 N·m (20 lb ft).

13. Install the coolant pump pulley. Refer to Water Pump Replacement in Engine Cooling.
14. Connect the radiator outlet hose to the coolant pump. Refer to Radiator Outlet Hose Replacement in Engine Cooling.
15. Connect the thermostat bypass pipe to the engine front cover. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.
16. Install the power steering pump with lines. Refer to Power Steering Pump Replacement in Power Steering System.
17. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .
18. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
19. Fill the engine with new engine oil. Refer to Engine Oil and Oil Filter Replacement .
20. Fill the cooling system with engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.