why does my Ford Explorer Fifth Generation (2011-2019) make a knocking noise when idling

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

631 words

Problem Statement

Learn how to diagnose and fix knocking noise in Ford Explorer 2011-2019. 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 engine to cool before opening any components

Symptoms

•Knocking noise audible at idle
•Engine vibrations felt through the cabin
•Possible check engine light illumination
•Decreased fuel efficiency
•Rough idle or stalling at low RPMs

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect engine mounts for signs of wear or damage
3
Check oil level and condition
4
Listen for noise location using a stethoscope or screwdriver
5
Inspect valvetrain components for wear or damage
6
Check spark plugs for fouling or damage

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
•Oil filter wrench
•Oil catch pan
•Funnel

Parts Required

•Engine oil
•Oil filter
•Engine mounts (if damaged)
•Spark plugs
•Valve cover gasket

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Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety.
Allow the engine to cool down before working on it.

2. Check Engine Oil

Sub-step 1: Locate the oil dipstick and remove it to check the oil level.
Sub-step 2: If oil is low, add manufacturer-recommended oil to the appropriate level.
Sub-step 3: If oil is dirty or contaminated, change the oil and filter.
Tools Required: Oil filter wrench, oil catch pan, funnel.

3. Inspect and Replace Engine Mounts (if damaged)

Sub-step 1: Raise the vehicle securely on jack stands.
Sub-step 2: Remove any covers or components obstructing access to the engine mounts.
Sub-step 3: Inspect each engine mount for cracks or separation.
Sub-step 4: Remove the damaged mounts using a socket set and install new mounts, tightening to manufacturer specifications.
Tools Required: Socket set, jack stands, torque wrench.

4. Inspect and Adjust Valvetrain Components

Sub-step 1: Remove the valve cover using a socket set.
Sub-step 2: Inspect rocker arms and lifters for wear and proper clearance.
Sub-step 3: Adjust or replace any worn components as necessary.
Sub-step 4: Reinstall the valve cover and torque it to the specified value.
Tools Required: Torque wrench, socket set, valve cover gasket.

5. Replace Spark Plugs (if worn)

Sub-step 1: Remove the ignition coils to access the spark plugs.
Sub-step 2: Use a spark plug socket to remove old plugs.
Sub-step 3: Install new spark plugs, ensuring proper gap settings.
Sub-step 4: Reinstall the ignition coils and connectors.
Tools Required: Spark plug socket, torque wrench.