why does my Ford Explorer Fifth Generation (2011-2019) engine shake at idle

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

441 words

Problem Statement

Learn how to diagnose and fix engine shaking at idle in Ford Explorer Fifth Generation (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 the battery before working on electrical systems.
•Allow the engine to cool before performing maintenance.

Symptoms

•Engine shaking or vibrating at idle
•Check engine light illuminated
•Rough idle or fluctuating RPMs
•Increased fuel consumption
•Possible engine stalling or hesitation during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect engine mounts visually for signs of wear or damage.
3
Check for vacuum leaks by inspecting hoses and connections.
4
Test the ignition system components, including spark plugs and coils, for functionality.
5
Measure fuel pressure to ensure the fuel delivery system is operating correctly.
6
Inspect the air intake system for blockages or restrictions, including the air filter.

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
•Screwdrivers
•Vacuum gauge
•Jack and jack stands

Parts Required

•Engine mounts (if damaged)
•Spark plugs
•Ignition coils (if faulty)
•Vacuum hoses (if cracked)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect engine mounts visually for signs of wear or damage.
3
Check for vacuum leaks by inspecting hoses and connections.
4
Test the ignition system components, including spark plugs and coils, for functionality.
5
Measure fuel pressure to ensure the fuel delivery system is operating correctly.
6
Inspect the air intake system for blockages or restrictions, including the air filter.

Solution

1. Preparation

Gather tools and components needed for the repair.
Safety gear: gloves and goggles.
Ensure the vehicle is parked on a flat surface with the engine off and cool.

2. Replace Damaged Engine Mounts

Sub-steps:
1. Use a socket set to remove the bolts securing the engine mount to the engine and frame.
2. Lift the engine slightly using a jack and a wooden block to distribute the weight evenly.
3. Remove the old engine mount and replace it with a new one.
4. Torque the bolts to the manufacturer's specifications (typically around 50-70 ft-lbs, but check specific torque values for your model).

3. Replace Spark Plugs and Ignition Coils (if needed)

Sub-steps:
1. Disconnect the negative battery terminal to prevent electrical shorts.
2. Remove any necessary engine covers to access the ignition coils.
3. Disconnect the wiring harness from the ignition coils.
4. Unbolt and remove the ignition coils and spark plugs using a socket wrench.
5. Install new spark plugs and ignition coils, ensuring a proper gap for the plugs (typically .050 inches).
6. Reconnect the wiring harness and replace any engine covers removed.

4. Repair Vacuum Leaks

Sub-steps:
1. Inspect all vacuum hoses for cracks or disconnections.
2. Replace damaged hoses with new vacuum lines.
3. Use a smoke machine or carb cleaner to identify and confirm any additional leaks.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Screwdrivers
Vacuum gauge
Jack and jack stands

Parts Required:

Engine mounts (if damaged)
Spark plugs
Ignition coils (if faulty)
Vacuum hoses (if cracked)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow the engine to cool before performing maintenance.