how to troubleshoot loss of power in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

4 min read

638 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 troubleshoot loss of power in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps, tools, 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 engine to cool before opening any components to avoid burns.

Symptoms

•Check engine light illuminated
•Engine stalling or hesitation during acceleration
•Decreased fuel efficiency
•Rough idle or misfires
•Unusual engine noises (knocking or pinging)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the air filter for clogs or dirt that could restrict airflow.
3
Check fuel pressure with a fuel pressure gauge to ensure the fuel pump is functioning properly.
4
Verify the condition of spark plugs and ignition coils for wear or damage.
5
Inspect the throttle body for carbon buildup or mechanical issues.
6
Examine exhaust components for blockages, such as a clogged catalytic converter.

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
•Fuel pressure gauge
•Throttle body cleaner
•Spark plug socket

Parts Required

•Air filter
•Fuel pump (if necessary)
•Spark plugs
•Ignition coils (if necessary)
•Throttle body gasket (if removed)

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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 air filter for clogs or dirt that could restrict airflow.
3
Check fuel pressure with a fuel pressure gauge to ensure the fuel pump is functioning properly.
4
Verify the condition of spark plugs and ignition coils for wear or damage.
5
Inspect the throttle body for carbon buildup or mechanical issues.
6
Examine exhaust components for blockages, such as a clogged catalytic converter.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the battery to ensure safety while working on electrical components.
Allow the engine to cool if it has been running before starting work.

2. Replace Clogged Air Filter

Remove the air filter housing cover using a socket set.
Take out the old air filter and inspect it.
Install a new air filter, ensuring it fits snugly in place.
Reattach the housing cover and tighten securely.

3. Test and Replace Fuel Pump (if necessary)

Connect a fuel pressure gauge at the fuel rail.
Turn the ignition to the "ON" position without starting to check the pressure reading.
If pressure is below specifications (consult repair manual), remove the fuel pump access panel.
Disconnect the fuel lines and electrical connector from the fuel pump.
Replace the fuel pump with a new unit and reassemble all connections.

4. Inspect and Replace Spark Plugs and Ignition Coils

Remove the engine cover if necessary to access the spark plugs.
Disconnect the ignition coils and remove them using a socket set.
Pull out the spark plugs using a spark plug socket, inspecting for wear or deposits.
Install new spark plugs with the correct gap (refer to specifications) and reconnect the ignition coils.

5. Clean Throttle Body

Remove the throttle body from the intake manifold after disconnecting the electrical connector and vacuum lines.
Use throttle body cleaner and a soft cloth to clean the inside of the throttle body.
Reinstall the throttle body and reconnect all components.

6. Verify Exhaust Flow (if needed)

Inspect the catalytic converter for any signs of damage or clogging.
If there are blockages, replace the catalytic converter with a new one, ensuring to follow proper removal and installation procedures.