why does my Ford Explorer Fifth Generation (2011-2019) feel like it’s losing power

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

592 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 loss of power issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms, diagnostics, and solutions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems
•Relieve fuel system pressure before disconnecting fuel lines

Symptoms

•Check engine light illuminated
•Engine stalling or hesitating during acceleration
•Poor fuel economy
•Decreased throttle response
•Rough idling
•Unusual engine noises (e.g., sputtering)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogging or damage
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump and filter are functioning correctly
4
Inspect and clean the throttle body for carbon buildup
5
Examine ignition system components (spark plugs, coils) for wear or failure
6
Verify the functionality of the Mass Airflow Sensor (MAF) by performing a visual inspection and testing its output

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
•Throttle body cleaner
•Soft cloth or brush
•Fuel pressure gauge
•Socket set
•Torque wrench

Parts Required

•Fuel filter (if applicable)
•Spark plugs (if worn)
•Ignition coils (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogging or damage
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump and filter are functioning correctly
4
Inspect and clean the throttle body for carbon buildup
5
Examine ignition system components (spark plugs, coils) for wear or failure
6
Verify the functionality of the Mass Airflow Sensor (MAF) by performing a visual inspection and testing its output

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative terminal of the battery to prevent electrical shorts.
Allow the engine to cool before starting the work.

2. Clean the Throttle Body

Remove Air Intake Hose: Loosen the clamps and disconnect the hose from the throttle body.
Access Throttle Body: If necessary, remove any components obstructing access (such as the engine cover).
Clean the Throttle Body: Use throttle body cleaner and a soft cloth to remove carbon deposits. Avoid using metal tools that could scratch the surface.
Reassemble: Reattach the air intake hose and any components removed.

3. Replace Fuel Filter (if applicable)

Locate Fuel Filter: Identify the fuel filter's location based on the vehicle's service manual.
Relieve Fuel System Pressure: Remove the fuel pump fuse and run the engine until it stalls to relieve pressure.
Disconnect Fuel Lines: Use appropriate tools to disconnect the fuel lines from the filter, taking care to avoid spillage.
Install New Filter: Connect the new filter, ensuring the flow direction matches the original part.
Reassemble Components: Replace any components removed and reinsert the fuel pump fuse.

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

Remove Ignition Coil Covers: If applicable, remove the engine cover to access the ignition coils.
Disconnect Ignition Coils: Unplug the connectors from the ignition coils.
Remove Spark Plugs: Use a socket wrench to remove the old spark plugs, taking care not to damage the threads.
Install New Spark Plugs: Apply anti-seize compound to the threads and torque them to manufacturer specifications (usually around 15 ft-lbs).
Reinstall Ignition Coils: Secure the coils back in place and reconnect the electrical connectors.