The contact owns a 2017 Ford F-150. The contact stated while driving at various speeds, there was an abnormal rattling sound coming from under the hood. No warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed that 4 cam shaft phasers had failed. The vehicle was not repaired. The contact related the failure to Customer Satisfaction Program: 21N03; however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 90,000.

- Stamford, CT, USA

The contact owns a 2017 Ford F-150. The contact stated while the vehicle was parked, the contact observed a rattling sound coming from the engine compartment. The contact stated that once the oil pressure had built up the sound coming from the engine compartment ceased. The vehicle was taken to a dealer where it was diagnosed that the variable timing chain and four camshaft phasers needed to be replaced. The vehicle was currently being repaired. The manufacturer was notified of the failure. The failure mileage was 96,500.

- Mesa, AZ, USA

The contact owns a 2017 Ford F-150. The contact stated that upon start up, there was a rattling sound coming from the hood of the vehicle. The contact stated while driving at an undisclosed speed, there was a grinding sound while the accelerator pedal was depressed. The vehicle was taken to the dealer where it was diagnosed and determined that the solenoid, VCT solenoid, ECM, and crank case needed to be flushed. The vehicle was repaired; however, the contact state that a week later she noticed that oil had leaked onto the hatch of the vehicle. The check engine warning light was illuminated. The vehicle was taken back to the dealer and was diagnosed, and it was determined that the cam phaser and cam shaft had failed and needed to be replaced. The vehicle was not repaired. Additionally, the contact stated that the technician had changed the mileage on the odometer. The manufacturer was notified of the failure, but no further assistance was provided. The failure mileage was approximately 51,000.

- Sullivan, IN, USA

The contact owns a 2017 Ford F-150. The contact stated that on several occasions while driving, he heard loud sounds coming from the engine compartment. The check engine warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the cam shaft sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 130,000.

- Columbus, OH, USA