why does my Ford Explorer Fifth Generation (2011-2019) have a loss of power when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

644 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 during acceleration in Ford Explorer (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 components
•Allow the engine to cool before performing maintenance on the ignition system
•Be cautious of fuel spillage; work in a well-ventilated area

Symptoms

•Engine stalling during acceleration
•Hesitation when pressing the accelerator
•Check engine light illuminated
•Poor fuel economy
•Unusual engine noises (e.g., knocking or pinging)
•Excessive exhaust smoke

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 clogs or restrictions that may affect airflow
3
Check the fuel pressure using a fuel pressure gauge to ensure proper fuel delivery
4
Examine the throttle body for carbon buildup or mechanical issues that may impede throttle response
5
Inspect the spark plugs and ignition system components for wear or damage
6
Assess the transmission fluid level and condition to rule out transmission-related issues

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
•Screwdriver set
•Wrench set
•Throttle body cleaner
•Spark plug socket
•Torque wrench

Parts Required

•Air filter
•Fuel filter
•Spark plugs

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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 clogs or restrictions that may affect airflow
3
Check the fuel pressure using a fuel pressure gauge to ensure proper fuel delivery
4
Examine the throttle body for carbon buildup or mechanical issues that may impede throttle response
5
Inspect the spark plugs and ignition system components for wear or damage
6
Assess the transmission fluid level and condition to rule out transmission-related issues

Solution

1. Preparation

Gather all tools and parts required for the repair.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Disconnect the battery to prevent electrical shorts.

2. Clean or Replace Air Filter

Sub-steps:
- Open the hood and locate the air filter housing.
- Remove the clips or screws securing the air filter housing.
- Take out the old air filter and inspect it for dirt or damage.
- Clean the housing with a damp cloth or replace it with a new air filter.
Tools Required: Screwdriver, vacuum cleaner (optional)

3. Check and Replace Fuel Filter

Sub-steps:
- Locate the fuel filter, usually near the fuel tank or along the fuel line.
- Relieve fuel pressure by removing the fuel pump fuse and starting the engine until it stalls.
- Disconnect the fuel lines from the filter (be prepared for fuel spillage).
- Install the new fuel filter, ensuring proper orientation for fuel flow.
Tools Required: Wrench set, safety goggles
Safety Warnings: Be cautious of fuel spillage; work in a well-ventilated area.

4. Clean Throttle Body

Sub-steps:
- Remove the intake duct connected to the throttle body.
- Spray throttle body cleaner into the throttle body while manually opening the throttle plate.
- Wipe away carbon buildup with a clean cloth.
- Reassemble the intake duct securely.
Tools Required: Throttle body cleaner, cloth, screwdriver

5. Inspect and Replace Spark Plugs

Sub-steps:
- Remove the ignition coil or spark plug wires from the spark plugs.
- Use a socket wrench to remove the old spark plugs.
- Inspect the spark plugs for wear (replace if necessary).
- Install new spark plugs and torque them to the manufacturer’s specifications (usually around 13-15 ft-lbs).
- Reconnect the ignition coils or spark plug wires.
Tools Required: Spark plug socket, torque wrench
Safety Warnings: Ensure the engine is cool before working on spark plugs.