However, if you are experienced and prepared to tackle this job, here's a general overview. Remember this is a simplified overview and specific steps may vary depending on the engine (3.1L, 3.4L, etc.) in your Malibu. You'll need a detailed repair manual specific to your vehicle's year and engine for precise instructions and torque specifications.
General Steps (These are simplified and may not be exhaustive):
1. Safety First: Disconnect the negative battery terminal. This prevents accidental electrical shorts.
2. Drain the Oil: Completely drain the engine oil using the drain plug located on the oil pan.
3. Access the Oil Pump: This usually involves removing various components like the oil pan, timing chain cover (if applicable), and potentially other engine components depending on the engine configuration. This step often requires removing various bolts and potentially disconnecting sensors and other components. Consult your repair manual for the precise procedure.
4. Remove the Oil Pump: Once you have access to the oil pump, carefully remove it. Take note of the location and orientation of all components. This may involve removing bolts and possibly a pickup tube.
5. Clean the Oil Pan and Surroundings: Thoroughly clean the oil pan and the mating surfaces where the oil pump sits to ensure a good seal.
6. Install the New Oil Pump: Install the new oil pump, ensuring it's properly seated and aligned. Tighten the bolts to the manufacturer's specified torque.
7. Reassemble Everything: Carefully reinstall all components you removed in reverse order, paying close attention to the proper alignment and torque specifications of all bolts and fasteners.
8. Refill with Oil: Once everything is reassembled, refill the engine with the correct amount and type of oil as specified in your owner's manual.
9. Check for Leaks: Start the engine and carefully inspect for any oil leaks. Let the engine run for a few minutes, then check the oil level.
10. Dispose of Used Oil Properly: Dispose of the used oil and filter responsibly, according to local regulations.
Essential Tools and Supplies:
* Repair Manual: Absolutely essential for detailed instructions and torque specifications.
* Socket Set and Wrenches: Various sizes will be needed.
* Torque Wrench: Crucial for tightening bolts to the correct specification.
* Jack and Jack Stands: To safely support the vehicle.
* Oil Drain Pan: To collect the used oil.
* New Oil Filter and Oil: Use the correct type and grade as specified in your owner's manual.
* New Oil Pump Gasket(s): These will need to be replaced.
* Cleaning Supplies: For cleaning the oil pan and surrounding areas.
* Possibly other specialized tools: Depending on your Malibu's engine, you might need additional specialized tools to remove specific components.
Again, this is a simplified overview. Attempting this repair without a detailed repair manual and the necessary mechanical experience is strongly discouraged. Improper installation can lead to severe engine damage. Take your car to a professional mechanic if you are not confident in performing this repair yourself.
