why does my Ford Explorer Fifth Generation (2011-2019) lose power while driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

597 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

Discover how to diagnose and fix loss of power issues in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, 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.
•Allow the engine to cool before opening any components.

Symptoms

•Sudden loss of acceleration
•Engine stalling or hesitation
•Check engine light illuminated
•Poor fuel economy
•Unusual engine noises (e.g., knocking or pinging)
•Transmission slipping or harsh shifting

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential fault codes.
2
Inspect the fuel system for issues, including fuel pump operation and fuel filter condition.
3
Check the air intake system for blockages or leaks (e.g., air filter, intake hoses).
4
Examine the ignition system components (spark plugs, ignition coils) for wear or failure.
5
Test the battery and charging system to ensure proper voltage and current supply.
6
Inspect the throttle body and sensors for cleanliness and functionality.

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
•Torque wrench
•Throttle body cleaner
•Soft brush

Parts Required

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

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential fault codes.
2
Inspect the fuel system for issues, including fuel pump operation and fuel filter condition.
3
Check the air intake system for blockages or leaks (e.g., air filter, intake hoses).
4
Examine the ignition system components (spark plugs, ignition coils) for wear or failure.
5
Test the battery and charging system to ensure proper voltage and current supply.
6
Inspect the throttle body and sensors for cleanliness and functionality.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on electrical components.
Lift the vehicle if necessary and secure it with jack stands.

2. Fuel System Inspection

Tools Required: Fuel pressure gauge
Check fuel pump operation:
1. Connect the fuel pressure gauge to the fuel rail.
2. Turn the ignition key to the "On" position (do not start) and note the fuel pressure reading.
3. Compare the reading to manufacturer specifications (typically 30-40 psi for most models).
4. If pressure is low, inspect the fuel pump and replace if necessary.
Replace the fuel filter if it has not been changed in accordance with the maintenance schedule.

3. Air Intake System Inspection

Tools Required: Socket set, screwdriver
Inspect and clean the air filter:
1. Remove the air filter housing cover.
2. Take out the air filter and inspect for dirt and debris.
3. Clean or replace the air filter as needed.
Check intake hoses for cracks or leaks and replace if necessary.

4. Ignition System Maintenance

Tools Required: Socket set, torque wrench
Inspect spark plugs:
1. Remove the ignition coils or spark plug wires carefully.
2. Use a spark plug socket to remove the spark plugs.
3. Inspect for wear, carbon build-up, or damage and replace as needed.
Test ignition coils for proper operation using a multimeter and replace any faulty components.

5. Throttle Body Cleaning

Tools Required: Throttle body cleaner, soft brush
Clean the throttle body:
1. Disconnect the throttle body electrical connector.
2. Remove the throttle body from the intake manifold.
3. Spray throttle body cleaner and use a soft brush to clean carbon deposits.
4. Reinstall the throttle body and reconnect the electrical connector.