how to fix the AdBlue issue in my Ford Explorer if the warning light is on

Learn how to diagnose and fix the AdBlue issue in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and turn off the engine.
• Disconnect the battery to prevent any electrical shorts during repairs.

2. Replace AdBlue Fluid

• Step 1: Locate the AdBlue tank, typically found near the fuel filler or under the rear of the vehicle.
• Step 2: Remove the cap from the AdBlue tank.
• Step 3: Use a funnel to add fresh, quality AdBlue fluid to the tank until it reaches the recommended level.
• Step 4: Replace the cap securely on the AdBlue tank.

3. Inspect and Clean Components

• Step 1: Access the AdBlue injector, located along the exhaust system.
• Step 2: Remove the injector using the appropriate socket wrench.
• Step 3: Clean the injector with a suitable cleaning solution and a soft brush.
• Step 4: Reinstall the injector, ensuring it is tightened to the manufacturer’s torque specifications.

4. Check and Replace Defective Components

• Step 1: If the AdBlue pump is not functioning, locate it, usually found near the AdBlue tank.
• Step 2: Disconnect the electrical connector and hoses from the pump.
• Step 3: Remove the pump from its mounting.
• Step 4: Replace it with a new pump, reconnect hoses and electrical connections securely.

5. Reconnect Battery and Clear Codes

• Step 1: Reconnect the battery terminals.
• Step 2: Use the OBD-II scanner to clear any error codes related to the AdBlue system.
• Step 3: Start the engine and ensure the warning light is off.