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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

580 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 issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before inspecting components.

Symptoms

•Check engine light illuminated
•Engine stalling during acceleration
•Hesitation or rough acceleration
•Poor fuel economy
•Engine misfires
•Increased engine temperature

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Inspect the air filter for clogs or restrictions that could limit airflow.
3
Check the fuel pressure using a fuel pressure gauge to ensure it meets specifications.
4
Examine the ignition system components, including spark plugs and coils, for wear or damage.
5
Inspect the mass air flow (MAF) sensor for dirt or malfunction.
6
Check for vacuum leaks in hoses and intake manifold.
7
Review fuel quality to ensure no contamination or improper octane rating.

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
•Multimeter
•MAF sensor cleaner
•Torque wrench

Parts Required

•Air filter
•Fuel filter
•Spark plugs
•Ignition coils (if needed)
•Vacuum hoses (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Inspect the air filter for clogs or restrictions that could limit airflow.
3
Check the fuel pressure using a fuel pressure gauge to ensure it meets specifications.
4
Examine the ignition system components, including spark plugs and coils, for wear or damage.
5
Inspect the mass air flow (MAF) sensor for dirt or malfunction.
6
Check for vacuum leaks in hoses and intake manifold.
7
Review fuel quality to ensure no contamination or improper octane rating.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the negative battery terminal to ensure safety during work.

2. Inspect and Replace Air Filter

Remove the air filter housing cover using a socket set.
Take out the old air filter and inspect it for dirt and blockages.
Install a new air filter of the specified type.
Reattach the air filter housing cover and secure it properly.

3. Fuel System Inspection

Attach a fuel pressure gauge to the fuel rail service port.
Turn the ignition to the "ON" position (do not start the engine) and check the fuel pressure reading.
- If pressure is below specifications, replace the fuel pump.
- If pressure is within specifications, proceed to the next step.
Replace the fuel filter if it hasn't been changed recently.

4. Ignition System Service

Remove spark plug wires and inspect the spark plugs for wear, carbon buildup, or damage.
Replace spark plugs with OEM or equivalent parts if necessary, ensuring proper gap settings.
Test ignition coils using a multimeter for resistance; replace any faulty coils.

5. MAF Sensor Cleaning

Disconnect the MAF sensor connector.
Remove the MAF sensor from the intake duct.
Use MAF sensor cleaner to gently clean the sensor element; do not touch it with fingers.
Reinstall the MAF sensor and reconnect the connector.

6. Check for Vacuum Leaks

Inspect all vacuum hoses for cracks or disconnections.
Use a smoke machine or carburetor cleaner around the intake manifold and hoses to detect leaks.
Replace any damaged hoses or reseal the intake manifold if leaks are found.