why does my Ford Explorer Fifth Generation (2011-2019) hesitates when I accelerate?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

525 words

Problem Statement

Learn how to diagnose and fix hesitation during acceleration in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Fuel System

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 performing any maintenance.

Symptoms

•Hesitation or stuttering during acceleration
•Check engine light illuminated
•Rough idle when stationary
•Decreased power during driving
•Poor fuel economy

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes.
2
Inspect the air filter for blockages or dirt that could restrict airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is operating correctly.
4
Examine spark plugs for wear or fouling that could affect ignition.
5
Inspect throttle body for carbon buildup that might impede airflow.
6
Review transmission fluid levels and condition, looking for burnt fluid or debris.

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 cloth

Parts Required

•Air filter
•Spark plugs
•Fuel filter (if applicable)
•Fuel pump (if applicable)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes.
2
Inspect the air filter for blockages or dirt that could restrict airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is operating correctly.
4
Examine spark plugs for wear or fouling that could affect ignition.
5
Inspect throttle body for carbon buildup that might impede airflow.
6
Review transmission fluid levels and condition, looking for burnt fluid or debris.

Solution

1. Preparation

Gather tools: OBD-II scanner, fuel pressure gauge, socket set, torque wrench, and cleaning supplies.
Ensure the vehicle is parked on a flat surface, and the engine is cool.

2. Check and Replace Air Filter

Sub-steps:
- Open the hood and locate the air filter housing.
- Remove the screws or clips securing the housing cover.
- Take out the air filter and inspect it; replace if dirty or clogged.
- Reassemble the housing securely.

3. Inspect and Replace Spark Plugs

Sub-steps:
- Disconnect the battery before starting the process.
- Remove ignition coils or wires to access the spark plugs.
- Use a socket wrench to remove the old spark plugs.
- Inspect and replace with new plugs (check manufacturer specifications for gap settings).
- Reinstall ignition coils or wires and reconnect the battery.

4. Clean Throttle Body

Sub-steps:
- Remove the air intake duct leading to the throttle body.
- Use throttle body cleaner and a soft cloth to clean the throttle plate and surrounding areas.
- Reassemble the air intake duct securely.

5. Check Fuel Pressure

Sub-steps:
- Locate the fuel rail and connect the fuel pressure gauge.
- Turn the ignition to the "ON" position without starting the engine and check the pressure reading.
- If the pressure is outside manufacturer specifications, replace the fuel pump or filter as necessary.