TSB: Lincoln Aviator Buzz Noise

Some 2022 Lincoln Aviator vehicles equipped with a 3.0L EcoBoost engine and built on January 25, 2022 through March 10, 2022 may exhibit a buzz/rattle/vibration noise at engine idle or low RPM underneath the vehicle near the left rear door. This may be due to the pressurized fuel delivery line contacting the body or the fuel tank.

1. Remove the fuel tank.
2. Clean the top of the fuel tank in the area shown in the accompanying illustration with soapy water and/or isopropyl alcohol.
3. Stack three Rotunda hard foam patches P/N 164-R4902 on top of each other.
4. Install the stack of foam patches as shown in the illustration.
5. Make sure that the fuel line convolute is seated in the retaining clip.
6. Reinstall the fuel tank.