how to fix the fuel injector issues on Ford Explorer Fifth Generation (2011-2019)?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

639 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 fuel injector issues 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 working on or near the fuel system.

Symptoms

•Check engine light illuminated
•Rough idle or stalling
•Engine misfires
•Decreased fuel efficiency
•Fuel odor near the engine compartment
•Increased emissions or failed emissions test

Diagnostic Steps

1
Scan the vehicle's onboard computer for diagnostic trouble codes (DTCs) using an OBD-II scanner.
2
Inspect the fuel injector electrical connectors for any signs of damage or corrosion.
3
Perform a fuel pressure test to ensure the fuel pump is delivering adequate pressure.
4
Remove and visually inspect the fuel injectors for clogs or leaks.
5
Check the fuel rail for any leaks or signs of fuel pooling.
6
Test the resistance of the fuel injectors with a multimeter to confirm they are within specifications.

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
•Multimeter
•Screwdriver set

Parts Required

•Fuel injectors (as needed)
•Fuel injector O-rings (as needed)
•Fuel rail gaskets (if applicable)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard computer for diagnostic trouble codes (DTCs) using an OBD-II scanner.
2
Inspect the fuel injector electrical connectors for any signs of damage or corrosion.
3
Perform a fuel pressure test to ensure the fuel pump is delivering adequate pressure.
4
Remove and visually inspect the fuel injectors for clogs or leaks.
5
Check the fuel rail for any leaks or signs of fuel pooling.
6
Test the resistance of the fuel injectors with a multimeter to confirm they are within specifications.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the negative battery terminal to ensure safety.
Relieve fuel pressure in the system by removing the fuel pump relay and starting the engine until it stalls.

2. Remove Fuel Injectors

Remove Engine Cover: If applicable, take off the engine cover by unscrewing any bolts or fasteners.
Disconnect Fuel Lines: Use a wrench to disconnect the fuel lines from the fuel rail. Be cautious of any residual fuel.
Disconnect Electrical Connectors: Unplug the electrical connectors from each fuel injector.
Remove Fuel Rail: Unscrew the bolts holding the fuel rail in place and carefully lift it off, taking care not to damage the injectors.
Extract Fuel Injectors: Gently pull the fuel injectors out of the fuel rail. If they are stuck, a small twist may help to loosen them.

3. Inspect and Clean or Replace Injectors

Inspect Injectors: Check each injector for clogs or leaks. If cleaning, use a professional fuel injector cleaner or ultrasonic cleaner.
Replace if Necessary: If any injector is damaged or malfunctioning, replace it with a new one. Ensure the new injector matches the original specifications.
Lubricate O-rings: Apply a small amount of engine oil to the O-rings of the new injectors to ensure a good seal.

4. Reassemble Components

Reinstall Fuel Injectors: Insert the cleaned or new injectors back into the fuel rail, ensuring they are seated properly.
Reattach Fuel Rail: Position the fuel rail back onto the engine and secure it with bolts. Torque to manufacturer specifications (typically around 15 ft-lbs).
Reconnect Electrical Connectors: Plug the electrical connectors back onto each injector.
Reconnect Fuel Lines: Attach the fuel lines back to the fuel rail and tighten securely.

5. Final Checks

Reconnect the fuel pump relay and the battery terminal.
Turn the ignition key to the "on" position without starting the engine to prime the system and check for leaks.