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Replace oil pump in 1997 Chevrolet 5.7L Silverado?

Tools and Materials:

- Breaker bar

- Funnel

- Jack and jack stands

- Oil catch container

- Oil filter funnel

- Oil pump

- Oil pump seal

- Oil pump gasket

- Oil pump drive shaft

- Ratchet and socket set

- Screwdriver

- Wrench set

Instructions:

1. Prepare the Vehicle.

- Park your vehicle on a level surface. Engage the parking brake. Turn the engine off and allow it to cool down completely.

- Raise your vehicle with the jack and secure it on jack stands.

2. Locate the Oil Pump.

- The oil pump is located on the front of the engine, below the timing chain cover.

3. Drain the Oil.

- Place an oil catch container beneath the oil pan drain plug.

- Use a wrench to loosen the drain plug and allow the oil to drain completely.

4. Remove the Oil Pan.

- Locate the oil pan bolts. There are usually 15–20 bolts.

- Use the ratchet and socket set to remove the bolts.

- Gently pry the oil pan off the engine block with the screwdriver. Be careful not to spill any remaining oil.

5. Remove the Oil Pump.

- Locate the three bolts that hold the oil pump.

- Use the ratchet and socket set to loosen the bolts.

- Remove the bolts and the oil pump should come off easily.

6. Replace the Oil Pump Seal and Gasket.

- Inspect the oil pump seal and gasket for any signs of damage. Replace them if necessary.

7. Install the New Oil Pump.

- Apply a thin coat of sealant to the oil pump gasket.

- Set the new oil pump in place and install the bolts.

8. Replace the Oil Pan.

- Clean the oil pan and mating surface on the engine block.

- Apply a thin coat of sealant to the oil pan mating surface.

- Set the oil pan in place and install the bolts.

9. Reinstall the Oil Pan Bolts.

- Reinstall all the oil pan bolts. Tighten them in a star pattern to evenly distribute the pressure.

10. Reinstall the Oil Filter.

- Use the oil filter funnel to add a new oil filter.

- Hand-tighten the oil filter until it is snug.

11. Add New Oil.

- Use the funnel to add new oil to the engine.

- Check the oil level with the dipstick and add more oil if necessary.

12. Start the Vehicle.

- Start the vehicle and let it run for a few minutes.

- Check for any leaks.

13. Lower the Vehicle.

- Lower the vehicle from the jack stands.

Tips:

- Make sure you purchase the correct oil pump for your vehicle.

- Always use a new oil filter when changing the oil.

- Dispose of the used oil and filter properly.

- If you are uncomfortable performing this repair, take your vehicle to a qualified mechanic.