Tools Required

1. Discharge and recover the refrigerant, if vehicle equipped. Refer to HVAC.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the four bolts and the front skid plate from the vehicle, if the vehicle is equipped.
4. Remove the front differential assembly from the chassis in the four-wheel drive model vehicles. Refer to Front Axle.
5. Place a drain pan beneath the engine oil pan to catch the escaping oil.



6. Remove the engine oil drain plug (1) and the gasket allowing engine oil to drain.
7. Remove the clutch housing lower plate for manual transmission equipped vehicles. Refer to Manual Transmission.
8. Remove the torque converter housing lower plate for automatic transmission vehicles. Refer to Automatic Transmission.



9. Remove the following from the cylinder block (1):

•	Sixteen bolts

•

Two nuts

•	The engine oil pan (2)

10. Remove the two bolts and the oil pump strainer (3) from the cylinder block.
11. Lower the vehicle.
12. Remove the following components, if vehicle equipped. Refer to HVAC.

•	The A/C drive belt

•	The compressor

•	Refer to Air Conditioning Compressor Replacement in HVAC System - Manual.

•	The bracket

13. Remove the following components. Refer to Timing Belt Replacement and Timing Belt Tensioner Replacement .

•	The timing belt outside cover

•	The timing belt

•	The timing belt tensioner

14. Remove the oil level indicator from the guide tube.
15. Remove the one bolt and guide tube with the O-ring from the oil pump.



16. Use a J 35271 on the flywheel (1) in order to remove the lock crankshaft.



17. Remove the crankshaft timing belt gear bolt (1).
18. Remove the crankshaft timing belt gear (2).



19. Remove the following from the cylinder block:

•	The seven bolts

•	The oil pump assembly (1)

•	The gasket

•	The rubber oil pump-to-coolant pump seals

•	The two guide pins

20. Clean the following assemblies:

•	The cylinder block

•	The oil pump

•	The oil pan mating surfaces

Tools Required

1. Apply a thin coat of oil to the J 34853 .



2. Use the J 34853 in order to install the oil seal to the crankshaft.



3. Use the J 34853 in order to install the two guide pins and the oil pump assembly (3).




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. Secure the oil pump assembly with the seven bolts.

Tighten
Tighten the oil pump bolts to 11 N·m (97 lb in).

5. Inspect the oil seal lip to ensure the oil seal lip is not upturned.
6. Remove the J 34853 .
7. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.



8. Apply a gasket paste to the engine oil pan mating surface (1) in a continuous bead. Use GM P/N 1050026 or the equivalent.
9. Install the oil pump strainer to the engine oil pan.



10. Install the oil pump strainer (3) to the cylinder block (3). Secure with the oil pump strainer bolt and the oil pump strainer bracket bolt.

Tighten
Tighten the oil pump strainer bolt and the oil pump strainer bracket bolt to 11 N·m (97 lb in).

11. Install the engine oil pan to the cylinder block. Secure the engine oil pan with sixteen bolts and two nuts.

Tighten
Tighten the engine oil pan nuts and bolts to 11 N·m (97 lb in).

12. Install the engine oil drain plug and the gasket to the engine oil pan (2).

Tighten
Tighten the engine oil drain plug to 35 N·m (26 lb ft).

13. Install the clutch housing lower plate for manual transmission equipped vehicles. Refer to Manual Transmission.
14. Install the torque converter housing lower plate for automatic transmission vehicles. Refer to Automatic Transmission.
15. Install the front differential assembly to the chassis in four-wheel drive model vehicles. Refer to Front Axle.
16. Install the front skid plate if equipped. Secure the front skid plate with four bolts.

Tighten
Tighten the front skid plate bolts to 55 N·m (40 lb ft).

17. Lower the vehicle
18. Install the crankshaft timing belt gear. Secure the timing belt gear with one bolt.

Tighten
Tighten the crankshaft timing belt gear to 110 N·m (81 lb ft).

19. Install the guide tube with a new O-ring and the oil level indicator to the cylinder block. Secure the guide tube with a new O-ring and the oil level indicator with one bolt.

Tighten
Tighten the guide tube bolt to 14 N·m (10 lb ft).

Install the following components:

•	The timing belt outside cover

•	The timing belt

•	The tensioner

•	Refer to Timing Belt Replacement and Timing Belt Tensioner Replacement .

20. Install the following, if vehicle equipped. Refer to HVAC.

•	The A/C drive belt

•	The compressor

•	Refer to Air Conditioning Compressor Replacement in HVAC System - Manual.

•	The bracket

21. Refill the engine oil to the specifications. Refer to Approximate Fluid Capacities in Maintenance and Lubrication.
22. Evacuate and charge the A/C system if the vehicle is equipped. Refer to HVAC.
23. Start the engine after the installation is complete.
24. Check for normal oil pressure.