The contact owns a 2012 Ford F-150. The contact stated when the vehicle started, there was an abnormal rattling sound coming from the vehicle. The vehicle was taken to the dealer, where it was diagnosed with failed variable camshaft timing (VCT) cam phasers. The contact was informed that the VCT cam phasers and the timing chain needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 74,000.