The contact owns a 2018 Ford Expedition. The contact stated while starting the vehicle, and occasionally while driving at various speeds, there was a loud rattling sound coming from the front-end of the vehicle. The contact stated that the vehicle hesitated while responding. The contact stated there was coolant leaking from the vehicle and the check engine warning light was illuminated. Additionally, the wrench symbol was displayed on the instrument panel. The vehicle was taken to the dealer who diagnosed that the cam phaser and timing chain had failed, and that coolant was leaking near the radiator. The contact was informed that the cam phaser and timing chain needed to be replaced. The contact related the failure to TSB: 21N03-S4 (Engine and Engine Cooling) however, the vehicle was not included. The manufacturer was made aware of the failure and filed a case. The contact was referred to the NHTSA Hotline for assistance. The approximate failure mileage was 88,000.

- New Glarus, WI, USA

The contact owns a 2018 Ford Expedition. The contact stated that on various occasions after starting the vehicle, a loud rattling noise was heard. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the cam phaser needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and the contact was advised to file a complaint with the NHTSA Hotline. The approximate failure mileage was 89,000.

- Needham, MA, USA

The contact owns a 2018 Ford Expedition. The contact stated while starting the vehicle to pull out of a parking lot, he heard an abnormal sound coming from the vehicle. There was no warning light illuminated. The contact was able to drive home safely. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the cam-phaser needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 77,000.

- Haughton, LA, USA