why does my Ford Explorer have a check engine light and is shaking

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

542 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix engine shaking and check engine light issues in Ford Explorer. 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 engine to cool before inspecting components.

Symptoms

•Check engine light illuminated
•Engine shaking or vibrating during idle and acceleration
•Rough idle when the vehicle is stationary
•Decreased engine performance or power
•Possible increased fuel consumption
•Unusual noises from the engine compartment

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the engine’s air intake system for leaks or blockages.
3
Check spark plugs and ignition coils for wear or failure.
4
Examine fuel injectors for clogs or malfunction.
5
Inspect engine mounts for damage or excessive wear.
6
Check vacuum hoses for leaks or disconnections.

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
•Fuel injector cleaner
•Screwdrivers

Parts Required

•Spark plugs
•Ignition coils
•Fuel injectors (if necessary)
•Vacuum hoses (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the engine’s air intake system for leaks or blockages.
3
Check spark plugs and ignition coils for wear or failure.
4
Examine fuel injectors for clogs or malfunction.
5
Inspect engine mounts for damage or excessive wear.
6
Check vacuum hoses for leaks or disconnections.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the battery to ensure safety while working on the vehicle.

2. Addressing Error Codes

Sub-step 1: Use the OBD-II scanner to retrieve the error codes.
Sub-step 2: Research the codes to determine the specific component or system that is causing the issue.

3. Inspect and Replace Spark Plugs and Ignition Coils

Sub-step 1: Remove the engine cover if applicable.
Sub-step 2: Disconnect the ignition coil connectors and unbolt the coils.
Sub-step 3: Remove the old spark plugs using a spark plug socket.
Sub-step 4: Inspect the condition of the spark plugs and replace them if necessary.
Sub-step 5: Install new spark plugs and ignition coils, ensuring they are torqued to manufacturer specifications (typically 12-15 lb-ft for spark plugs).

4. Clean or Replace Fuel Injectors

Sub-step 1: Remove the fuel rail by unscrewing the bolts and disconnecting the fuel lines (be cautious of fuel spillage).
Sub-step 2: Inspect the fuel injectors for clogs or leaks.
Sub-step 3: Clean the injectors using a fuel injector cleaner or replace them if they are damaged.

5. Inspect Engine and Vacuum Hoses

Sub-step 1: Visually inspect all vacuum hoses for cracks, breaks, or loose connections.
Sub-step 2: Replace any damaged hoses with new ones that meet OEM specifications.

6. Final Checks

Sub-step 1: Reconnect the battery.
Sub-step 2: Clear the error codes using the OBD-II scanner.
Sub-step 3: Start the engine and monitor for any abnormal shaking or vibrations.