However, if you're determined to do it yourself, here's a general overview. This is NOT a complete guide, and you'll need a detailed repair manual specific to your vehicle's year and engine (likely a 2.0L or 2.8L V6 depending on your model). A Haynes or Chilton manual is a good investment.
Disclaimer: This information is for guidance only. Improperly performing this task can result in serious engine damage. Proceed at your own risk.
General Steps (This is a simplified overview, consult your repair manual for precise details):
1. Preparation: Disconnect the battery negative terminal. Gather your tools, including a variety of sockets, wrenches, screwdrivers, a torque wrench, oil pan gasket, new oil pump, and potentially a new oil pump pickup tube. You'll likely need jack stands, ramps, and potentially engine support. Have a clean workspace and appropriate drain pan.
2. Drain the Oil: Drain the engine oil completely.
3. Remove the Oil Pan: This usually requires removing the lower engine cover, possibly some exhaust components, and several bolts securing the oil pan. Be very careful not to damage the oil pan gasket. Prepare for some oil spillage.
4. Access the Oil Pump: Once the oil pan is removed, you'll have access to the oil pump. The oil pump is usually bolted to the bottom of the engine block. You may need to remove the oil pump pickup tube first.
5. Remove the Old Oil Pump: Carefully remove the bolts securing the oil pump to the block. Take note of the order and position of bolts for reassembly.
6. Install the New Oil Pump: Install the new oil pump, ensuring a clean and properly sealed surface. Reinstall the oil pickup tube if removed.
7. Reinstall the Oil Pan: Carefully reinstall the oil pan with a new gasket. Tighten the bolts to the manufacturer's specified torque.
8. Reassemble: Reinstall all components removed during the process in reverse order.
9. Refill with Oil: Refill the engine with the correct amount and type of oil (check your owner's manual).
10. Check for Leaks: Start the engine and let it run for a few minutes. Carefully inspect for any oil leaks.
11. Check Oil Level: After the engine has cooled, check the oil level.
Crucial Considerations:
* Timing Chain/Belt: Depending on your engine, the timing chain or belt may need to be removed to access the oil pump. This requires precise timing marks to ensure proper reassembly, and incorrect reassembly can severely damage the engine.
* Oil Pump Drive: The oil pump is typically driven by the crankshaft. Make sure this drive mechanism is in good condition.
* Repair Manual: A detailed repair manual is absolutely crucial. This overview skips many crucial steps and details.
* Torque Specifications: Use a torque wrench to tighten all bolts to the correct specifications; this prevents damage to the engine.
Again, this is a very complex procedure. Unless you have significant mechanical experience, it's strongly recommended to have a professional mechanic perform this repair. Incorrectly replacing the oil pump can lead to catastrophic engine failure.
