how to fix the AdBlue issues in my Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

535 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 AdBlue issues in your Ford Explorer Sixth Generation (2020-present). Step-by-step guide with symptoms and solutions.

Affected Component

Exhaust System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Wear gloves and safety goggles when handling AdBlue fluid, as it can be irritating to skin and eyes.

Symptoms

•AdBlue warning light illuminated on the dashboard
•Reduced engine power or performance
•Error message indicating AdBlue system malfunction
•Increased frequency of refueling AdBlue
•Poor fuel economy or increased emissions
•Vehicle entering limp mode

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes related to the AdBlue system using an OBD-II scanner.
2
Inspect the AdBlue level in the tank to ensure it is above the minimum threshold.
3
Check for any visible leaks in the AdBlue lines and connections.
4
Test the AdBlue pump operation to ensure it is functioning correctly.
5
Examine the NOx sensors for proper operation.
6
Verify the integrity of the AdBlue injector and its nozzle for blockages or damage.

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
•Screwdriver set
•Torque wrench
•AdBlue funnel

Parts Required

•New AdBlue injector (if needed)
•New AdBlue pump (if needed)
•OEM-grade AdBlue fluid

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes related to the AdBlue system using an OBD-II scanner.
2
Inspect the AdBlue level in the tank to ensure it is above the minimum threshold.
3
Check for any visible leaks in the AdBlue lines and connections.
4
Test the AdBlue pump operation to ensure it is functioning correctly.
5
Examine the NOx sensors for proper operation.
6
Verify the integrity of the AdBlue injector and its nozzle for blockages or damage.

Solution

1. Preparation

Gather the necessary tools and parts.
Disconnect the vehicle's battery to ensure safety while working on electrical components.
Allow the vehicle to cool if the engine has been running.

2. Inspect and Replace AdBlue

Check AdBlue Level:
- Open the AdBlue filler cap and visually check the fluid level.
- If low, refill with OEM-grade AdBlue fluid.
Replace AdBlue Injector (if faulty):
- Locate the AdBlue injector, usually found near the exhaust system.
- Disconnect the electrical connector and the AdBlue line from the injector.
- Remove the injector using the appropriate socket size.
- Install the new injector and reconnect the lines and electrical connector.

3. Repair or Replace AdBlue Pump

Access the AdBlue Pump:
- If the pump is faulty, locate it, usually near the AdBlue tank.
- Disconnect the power connector and the AdBlue line.
- Remove any mounting bolts and extract the pump from its housing.
Install New Pump:
- Position the new pump in place, secure it with bolts, and reconnect the lines and power connector.

4. Reconnect Battery and Clear Codes

Reconnect the vehicle's battery.
Use the OBD-II scanner to clear any error codes related to the AdBlue system.

5. Test System Functionality

Start the vehicle and allow it to reach operating temperature.
Monitor the AdBlue system operation through the vehicle’s diagnostics.