how to fix the fuel pump relay issue in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

481 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 pump relay issues in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Fuel System

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Ensure the vehicle is on a flat surface and secured with wheel chocks before starting the repair.

Symptoms

•Engine cranks but does not start
•No fuel pressure at the fuel rail
•Intermittent engine stalling
•Check engine light illuminated
•Fuel pump noise is absent when the ignition is turned on

Diagnostic Steps

1
Use an OBD-II scanner to check for any error codes related to the fuel system.
2
Inspect the fuel pump relay visually for signs of damage or corrosion.
3
Test the fuel pump relay using a multimeter to check for continuity and proper operation.
4
Check the fuse related to the fuel pump circuit to ensure it is not blown.
5
Inspect the wiring and connectors from the relay to the fuel pump for any damage or loose connections.

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
•Multimeter
•Socket set
•Screwdriver set
•Wire connectors (if needed)

Parts Required

•New fuel pump relay

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Diagnostic Steps

1
Use an OBD-II scanner to check for any error codes related to the fuel system.
2
Inspect the fuel pump relay visually for signs of damage or corrosion.
3
Test the fuel pump relay using a multimeter to check for continuity and proper operation.
4
Check the fuse related to the fuel pump circuit to ensure it is not blown.
5
Inspect the wiring and connectors from the relay to the fuel pump for any damage or loose connections.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle battery to ensure safety while working on electrical components.

Tools Required:

OBD-II scanner
Multimeter
Socket set
Screwdriver set
Wire connectors (if needed)

2. Remove the Faulty Relay

Locate the fuel pump relay in the fuse box (refer to the owner's manual for exact location).
Use the socket set to remove any bolts or screws securing the fuse box cover.
Carefully remove the fuel pump relay from its socket.

3. Install the New Relay

Take the new fuel pump relay and ensure it matches the specifications of the old relay.
Insert the new relay into the socket, ensuring it is seated properly.
Re-secure the fuse box cover with bolts or screws.

4. Restore Power

Reconnect the vehicle battery and ensure all connections are tight.

5. Test the System

Turn the ignition key to the "ON" position (do not start) and listen for the fuel pump priming.
Use the OBD-II scanner to clear any previous trouble codes.
Start the engine and ensure it runs smoothly.