Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

1. Disconnect the battery negative cable from the battery. Refer to Battery Cable Replacement .
2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.



3. Remove the oil pan from the engine block. Refer to Oil Pan Replacement .



4. Remove the oil pump bolt mounting bolts.
5. Remove the oil pump assembly from the crankshaft rear bearing cap.

Important: When installing the oil pump assembly to the engine block, always replace the retainer between the oil pump and the drive shaft.

1. Align the extension shaft with the drive shaft to the oil pump drive gear. The oil pump should slide easily into place, do not force the oil pump into place.



2. Install the oil pump and the extension shaft to the engine block.
3. Install the oil pump assembly to the crankshaft rear bearing cap.

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 oil pump mounting bolts to the rear crankshaft main bearing cap.

Tighten
Tighten the mounting bolts to 90 N·m (65 lb ft).




5. Install the oil pan to the engine block. Refer to Oil Pan Replacement .
6. Connect the battery negative cable to the battery. Refer to Battery Cable Replacement .
7. Remove the safety stands and lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
8. Fill the crankcase with engine oil. Refer to the owner's manual for the appropriate grade.