how to resolve Ford Explorer Fifth Generation (2011-2019) engine hesitation

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

607 words

Problem Statement

Learn how to diagnose and fix engine hesitation in Ford Explorer (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 the battery before working on electrical components.
•Allow the engine to cool before performing maintenance to avoid burns.

Symptoms

•Engine stutters or hesitates during acceleration
•Decreased engine power
•Check engine light illuminated
•Rough idle when at a stop
•Poor fuel economy
•Engine misfires at higher RPMs

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the air filter for cleanliness and proper airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications.
4
Inspect ignition components, including spark plugs and ignition coils, for wear or damage.
5
Verify the functionality of the throttle body by performing a visual inspection and cleaning if necessary.
6
Check for vacuum leaks in hoses and intake manifold using a smoke machine or visual inspection.

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
•Throttle body cleaner
•Torque wrench
•Screwdrivers

Parts Required

•Engine air filter
•Spark plugs
•Ignition coils (if necessary)
•Fuel pump (if necessary)
•Vacuum hoses (if damaged)

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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 cleanliness and proper airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure it meets manufacturer specifications.
4
Inspect ignition components, including spark plugs and ignition coils, for wear or damage.
5
Verify the functionality of the throttle body by performing a visual inspection and cleaning if necessary.
6
Check for vacuum leaks in hoses and intake manifold using a smoke machine or visual inspection.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative terminal of the battery to prevent electrical shorts.
Ensure the vehicle is parked on a level surface and the engine is cool.

2. Inspect and Replace Air Filter

Locate the air filter housing.
Remove the screws or clips securing the housing.
Take out the old air filter and inspect it for dirt and blockage.
Replace with a new air filter that meets manufacturer specifications.

3. Check and Replace Spark Plugs

Remove the ignition coil cover if applicable.
Disconnect the electrical connectors from the ignition coils.
Remove the ignition coils using a socket set.
Extract old spark plugs using a spark plug socket.
Inspect the spark plugs for wear; replace with new ones if necessary, ensuring proper gap is set according to manufacturer specifications.

4. Test and Replace Fuel Pump (if necessary)

Connect the fuel pressure gauge to the fuel rail.
Turn the ignition to the "ON" position without starting the engine and check the fuel pressure reading.
If the pressure is below specifications, replace the fuel pump.
To replace, drain the fuel tank, disconnect fuel lines, and remove the fuel pump module from the tank.

5. Clean Throttle Body

Remove the air intake duct connected to the throttle body.
Use throttle body cleaner and a soft cloth to clean the throttle plate and bore.
Reconnect the intake duct securely.

6. Inspect for Vacuum Leaks

Visually inspect all vacuum hoses connected to the intake manifold for signs of wear or damage.
Replace any damaged hoses.