why is my Honda Pilot Third Generation (2016-present) making a knocking noise when I accelerate

Honda Pilot Third Generation (2016-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

557 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Honda Pilot. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the engine to cool before working to prevent burns.

Symptoms

•Knocking noise that increases with acceleration
•Possible vibration felt through the steering wheel
•Decreased acceleration performance
•Engine misfire or rough idle
•Check engine light may illuminate

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any underlying issues.
2
Inspect the engine mounts for signs of wear or damage.
3
Check the condition of the oil and ensure it is at the correct level.
4
Visually inspect the exhaust system for loose components or leaks.
5
Examine the drivetrain components, including the CV joints and driveshaft for damage.
6
Test the ignition system components, including spark plugs and ignition coils.

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

•OBD-II scanner
•Socket set
•Torque wrench
•Pry bar
•Multimeter

Parts Required

•Engine mounts
•CV joints or axle assembly (if damaged)
•Spark plugs
•Ignition coils (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any underlying issues.
2
Inspect the engine mounts for signs of wear or damage.
3
Check the condition of the oil and ensure it is at the correct level.
4
Visually inspect the exhaust system for loose components or leaks.
5
Examine the drivetrain components, including the CV joints and driveshaft for damage.
6
Test the ignition system components, including spark plugs and ignition coils.

Solution

1. Preparation

Gather all necessary tools and parts.
Secure the vehicle on a flat surface and engage the parking brake.
Disconnect the battery before starting work on electrical components.

2. Engine Mount Inspection and Replacement

Inspect Engine Mounts:
- Check for cracks, tears, or excessive movement in the mounts.
- Use a pry bar to test for excessive play.
Remove Old Mounts:
- Use a socket set to unbolt the engine mount from the engine and chassis.
- Support the engine with a jack or engine support bar.
Install New Mounts:
- Position the new engine mount in place.
- Torque the bolts to the manufacturer's specifications (usually around 40-50 ft-lbs, check service manual).
Reconnect Battery:
- Reconnect the battery terminals and ensure they are secure.

3. Drivetrain Component Inspection and Repair

Inspect CV Joints and Driveshaft:
- Visually check for any tears in the CV boots or signs of grease leakage.
- Rotate the driveshaft by hand to feel for any binding or excessive play.
Replace Damaged Components:
- If CV joints are damaged, remove the axle nut with a socket wrench, detach the axle, and replace with a new one.
- For driveshaft issues, remove the driveshaft by unbolting it from the differential and replace if necessary.
Reassemble:
- Reconnect all components and ensure they are torqued to specifications.

4. Ignition System Check

Inspect Spark Plugs:
- Remove spark plugs using a spark plug socket and inspect for wear or carbon build-up.
- Replace with OEM-spec plugs if necessary.
Check Ignition Coils:
- Use a multimeter to test the resistance of ignition coils.
- Replace any faulty ignition coils.