how to fix P0455 code on Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and set the parking brake.
• Disconnect the battery to avoid electrical shock.

2. Inspect and Replace the Gas Cap

• Tools Required: None
• Remove the gas cap and inspect the rubber seal for damage. If damaged, replace the gas cap with a new one.
• Reinstall the gas cap securely.

3. Check and Repair EVAP Hoses

• Tools Required: Socket set, pliers
• Remove any clamps securing the EVAP hoses.
• Inspect hoses for cracks or holes; replace any damaged hoses with OEM replacement parts.
• Reconnect hoses and secure with clamps.

4. Smoke Test the EVAP System

• Tools Required: Smoke machine
• Attach the smoke machine to the EVAP system and activate it to introduce smoke into the system.
• Observe for smoke escaping from any components, indicating a leak.
• Repair or replace any components where smoke is detected.

5. Inspect and Replace Charcoal Canister

• Tools Required: Socket set, screwdriver
• Locate the charcoal canister and inspect for cracks or damage.
• If damaged, disconnect the hoses and electrical connectors, then remove the mounting bolts.
• Install the new charcoal canister and reconnect all hoses and connectors securely.

6. Clear Codes and Test Drive

• Tools Required: OBD-II scanner
• Reconnect the battery.
• Use the OBD-II scanner to clear the P0455 code from the system.
• Test drive the vehicle to ensure the check engine light does not reappear.