my Ford Explorer Fifth Generation (2011-2019) has a rough engine noise, what's causing it?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

539 words

Problem Statement

Learn how to diagnose and fix rough engine noise in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before draining engine oil or inspecting components.

Symptoms

•Rough engine noise during idle and acceleration
•Increased vibration felt through the chassis
•Possible check engine light illuminated
•Reduced engine performance or power loss
•Unusual exhaust sounds or emissions

Diagnostic Steps

1
Scan the vehicle’s OBD-II system for stored error codes.
2
Inspect the engine oil level and condition; check for contamination.
3
Listen for noise location: check for external noise source (accessories, belts).
4
Visually inspect the engine mounts for damage or wear.
5
Check for vacuum leaks in hoses and intake manifold.
6
Conduct a compression test on each cylinder.

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
•Compression tester

Parts Required

•Engine oil (5W-20 or as specified)
•Oil filter
•Engine mounts (if damaged)
•Vacuum hoses (if damaged)

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Diagnostic Steps

1
Scan the vehicle’s OBD-II system for stored error codes.
2
Inspect the engine oil level and condition; check for contamination.
3
Listen for noise location: check for external noise source (accessories, belts).
4
Visually inspect the engine mounts for damage or wear.
5
Check for vacuum leaks in hoses and intake manifold.
6
Conduct a compression test on each cylinder.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety during repairs.

2. Inspect and Replace Engine Oil

Sub-steps:
1. Remove the oil drain plug using a socket set; allow all oil to drain into a pan.
2. Inspect the old oil for metal shavings or debris.
3. Replace the oil filter using an oil filter wrench.
4. Reinstall the drain plug and torque to specifications (typically 20 lb-ft).
5. Refill the engine with the recommended motor oil (5W-20 or according to the owner’s manual).

3. Replace Worn Engine Mounts

Tools Required: Socket set, torque wrench.
Sub-steps:
1. Support the engine with a jack and a wooden block.
2. Remove the bolts securing the damaged engine mounts.
3. Carefully lift the engine slightly to remove the old mounts.
4. Install new engine mounts in reverse order; torque bolts to manufacturer specifications.

4. Repair or Replace Vacuum Hoses

Sub-steps:
1. Inspect all visible vacuum hoses for cracks or disconnections.
2. Replace any damaged hoses with OEM-spec replacements.
3. Ensure all connections are secure and properly seated.

5. Compress Test and Repair Engine (if necessary)

Tools Required: Compression tester.
Sub-steps:
1. Remove spark plugs to prevent compression resistance.
2. Insert the compression tester into each cylinder and crank the engine.
3. Record the pressure readings; compare to specifications.
4. If compression is low, further investigate potential issues (valve seals, piston rings).