my Toyota Highlander XU70 (2020-Present) is leaking oil, what should I do

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal for safety.

2. Identifying the Leak Source

• Tools Needed: Flashlight, rags for cleaning, and a mirror for hard-to-reach areas.
• Inspect the oil filter:
  • Ensure it is properly tightened; if loose, tighten it.
  • If the filter is damaged or worn, replace it.
• Inspect the valve cover gasket:
  • If oil is seeping from the gasket, it may need to be replaced.

3. Repair the Leak

• Tools Needed: Socket set, torque wrench, gasket scraper, and clean rags.

• For Oil Filter Replacement:

  1. Use an oil filter wrench to remove the old filter.
  2. Apply a small amount of clean oil to the rubber gasket of the new filter.
  3. Install the new filter by hand until snug, then tighten it according to the manufacturer's specifications.

• For Valve Cover Gasket Replacement:

  1. Remove the engine cover if applicable.
  2. Disconnect any wiring harnesses or components obstructing access to the valve cover.
  3. Remove the bolts securing the valve cover using a socket set.
  4. Carefully lift the valve cover off and remove the old gasket.
  5. Clean the mating surfaces thoroughly with a gasket scraper.
  6. Place the new gasket onto the valve cover and re-install it, tightening the bolts to the specified torque value.

4. Add Oil and Reassemble

• Reconnect any components or wiring harnesses removed during the repair.
• Reconnect the negative battery terminal.
• Add the appropriate type and amount of engine oil as specified in the owner's manual.