how to fix a Ford Explorer Fifth Generation (2011-2019) that is losing power while driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

3 min read

548 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 power loss while driving in Ford Explorer 2011-2019. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the hood to prevent burns.

Symptoms

•Sudden loss of acceleration
•Engine stalling or misfiring
•Check engine light illuminated
•Poor fuel economy
•Unusual engine noises (e.g., knocking or sputtering)
•Difficulty in maintaining speed on inclines

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the fuel system for proper pressure and flow, including checking the fuel pump and fuel filter.
3
Check the air intake system for restrictions or leaks, including the air filter and intake manifold.
4
Examine the ignition system components, such as spark plugs and ignition coils, for wear or damage.
5
Inspect the exhaust system for blockages or leaks, particularly in the catalytic converter.
6
Verify the condition of the battery and alternator to ensure proper electrical supply.

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
•Fuel pressure gauge
•Socket set
•Multimeter
•Throttle body cleaner
•Torque wrench

Parts Required

•Fuel filter
•Fuel pump (if necessary)
•Air filter
•Spark plugs
•Ignition coils (if necessary)
•Catalytic converter (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the fuel system for proper pressure and flow, including checking the fuel pump and fuel filter.
3
Check the air intake system for restrictions or leaks, including the air filter and intake manifold.
4
Examine the ignition system components, such as spark plugs and ignition coils, for wear or damage.
5
Inspect the exhaust system for blockages or leaks, particularly in the catalytic converter.
6
Verify the condition of the battery and alternator to ensure proper electrical supply.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety during repairs.

2. Fuel System Inspection

Sub-steps:
1. Locate the fuel pump access panel (if applicable) or remove the rear seat to access the fuel pump.
2. Use a fuel pressure gauge to check fuel pressure; it should meet manufacturer specifications (typically around 50-60 psi for most applications).
3. Replace the fuel filter if it is clogged or has not been replaced in accordance with maintenance schedules.
4. If the fuel pump is faulty, replace it with a new unit, ensuring to use the correct part rated for the Explorer.

3. Air Intake System Repair

Sub-steps:
1. Remove the air filter housing cover and inspect the air filter; replace if dirty or clogged.
2. Inspect the intake manifold for any cracks or leaks; if found, replace the manifold gasket.
3. Clean the throttle body using throttle body cleaner to ensure proper airflow.

4. Ignition System Repair

Sub-steps:
1. Remove the ignition coils and inspect them for cracks or damage; replace any faulty coils.
2. Remove and inspect spark plugs; replace with OEM or equivalent plugs if worn or fouled.
3. Reassemble components ensuring all connections are secure.

5. Exhaust System Inspection

Sub-steps:
1. Visually inspect the exhaust system for any signs of damage or blockages, particularly at the catalytic converter.
2. If the catalytic converter is clogged, replace it with a new unit that meets OEM specifications.

6. Electrical System Check

Sub-steps:
1. Use a multimeter to test the battery voltage; it should read around 12.6 volts when fully charged.
2. Check the alternator output while the engine is running; it should be between 13.5 to 14.5 volts.
3. Replace the battery or alternator if either is found to be faulty.

Tools Required:

OBD-II scanner
Fuel pressure gauge
Socket set
Multimeter
Throttle body cleaner
Torque wrench

Parts Required:

Fuel filter
Fuel pump (if necessary)
Air filter
Spark plugs
Ignition coils (if necessary)
Catalytic converter (if necessary)

Estimated Repair Time: 4-8 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow the engine to cool before opening the hood to prevent burns.