how to replace the fuel filter in GMC Sierra T1XX (2019-Present)?

Step-by-step guide to replacing the fuel filter in GMC Sierra T1XX (2019-Present). Learn symptoms, diagnostic steps, and safety precautions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to prevent any electrical issues.
• Relieve fuel system pressure by removing the fuel pump relay and starting the engine until it stalls.

2. Accessing the Fuel Filter

• Locate the fuel filter, typically found along the fuel line under the vehicle near the fuel tank.
• If necessary, raise the vehicle using a jack and secure it with jack stands for better access.

3. Remove the Old Fuel Filter

• Use a line wrench to disconnect the fuel lines from both ends of the fuel filter, being cautious of any residual fuel.
• Remove any mounting brackets or clips holding the fuel filter in place.
• Carefully remove the old fuel filter from the vehicle.

4. Install the New Fuel Filter

• Ensure the new fuel filter is oriented correctly, following the directional arrows on the filter.
• Secure the new fuel filter in place with the mounting brackets or clips.
• Reconnect the fuel lines to the new filter, ensuring they are tightened properly to prevent leaks.

5. Final Steps

• Reinstall the fuel pump relay into the fuse box.
• Reconnect the vehicle battery.
• Start the engine and let it run for a few minutes while checking for leaks around the new filter.