For 1990-2009 cars

### Removal Procedure

Important: Do not remove the left bank idler sprocket.

1. Remove the primary timing chain. Refer to Primary Camshaft Drive Chain and Sprockets Replacement.
2. Remove the crankshaft sprocket. Refer to Crankshaft Sprocket Removal.
3. Remove the oil pump bolts and the oil pump. Refer to Oil Pump Removal.
4. Perform the following steps as necessary:

• | Disassemble the oil pump. Refer to Oil Pump Disassemble.

• | Clean and inspect the oil pump. Refer to Oil Pump Cleaning and Inspection.

### Installation Procedure

1. Assemble the oil pump as necessary. Refer to Oil Pump Assemble.
2. Install the oil pump. Refer to Oil Pump Installation.
3. Install the crankshaft sprocket. Refer to Crankshaft Sprocket Installation.
4. Install the primary timing chain. Refer to Primary Camshaft Drive Chain and Sprockets Replacement.