FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Why is my 2022 Toyota Highlander experiencing excessive engine noise? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/Why is my 2022 Toyota Highlander experiencing excessive engine noise?

Why is my 2022 Toyota Highlander experiencing excessive engine noise?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
646 words

Problem Statement

Learn how to diagnose and fix excessive engine noise in your 2022 Toyota Highlander with our step-by-step guide.

Affected Component
engine
Estimated Time
2-4 hours

Symptoms

  • •Loud knocking, ticking, or clattering noises from the engine compartment.
  • •Noise may increase with engine RPM.
  • •Possible loss of power or rough idling.
  • •Potential check engine light may be illuminated.

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Mechanic's stethoscope or a long screwdriver
  • •Oil dipstick
  • •Torque wrench
  • •Socket set
  • •Pry bar
  • •Flashlight for better visibility
  • •OBD-II scanner (if check engine light is on)

Additional Information

Affected Component
engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
7 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnosing Excessive Engine Noise in a 2022 Toyota Highlander

Possible Causes
  • Low engine oil level or poor oil quality.
  • Worn engine components (e.g., timing chain/belt, lifters).
  • Exhaust leaks.
  • Accessory drive belt issues.
  • Engine mounts failing.
Tools Required
  • Mechanic's stethoscope or a long screwdriver.
  • Oil dipstick.
  • Torque wrench.
  • Socket set.
  • Pry bar.
  • Flashlight for better visibility.
  • OBD-II scanner (if check engine light is on).
Repair Instructions
1. Addressing Low Engine Oil Level
  • Step 1: If oil level is low, add the recommended oil type (refer to the owner’s manual).
  • Step 2: If oil is dirty or contains metal shavings, proceed to an oil change.
2. Performing an Oil Change
  • Step 1: Lift the vehicle using a jack and secure it with jack stands.
  • Step 2: Remove the oil drain plug and drain old oil into a pan.
  • Step 3: Replace the oil filter with a new one.
  • Step 4: Reinstall the drain plug and torque it to manufacturer specifications.
  • Step 5: Fill the engine with the appropriate oil.
  • Step 6: Start the engine and check for leaks.
3. Replacing Worn Components
  • Step 1: If the noise is coming from the timing chain or belt, remove the necessary components to access them.
  • Step 2: Replace the timing belt/chain and associated tensioners and guides as per the service manual.
  • Step 3: If lifters are noisy, consider replacing them as well.
4. Fixing Exhaust Leaks
  • Step 1: For exhaust leaks, replace gaskets or cracked pipes as needed.
  • Step 2: Tighten all exhaust manifold bolts to the specified torque.
5. Repairing or Replacing Serpentine Belt
  • Step 1: If the belt is worn, remove it by loosening the tensioner.
  • Step 2: Install a new belt, ensuring it follows the correct routing.
6. Replacing Engine Mounts
  • Step 1: Support the engine with a jack.
  • Step 2: Remove the bolts securing the damaged mount and replace it with a new one.
  • Step 3: Re-torque all bolts to manufacturer specifications.
Final Steps
  1. Test Drive: After repairs, take the vehicle for a test drive to ensure the noise is resolved.
  2. Monitor Performance: Keep an eye on engine performance and any warning lights that may appear.

If the excessive engine noise persists after these steps, further diagnosis may be required, potentially involving a compression test or consulting a professional technician for advanced issues.