The contact owns a 2017 Ford F-150. The contact stated that while attempting to start the vehicle, there was a loud rattling sound coming from the engine compartment. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic and was diagnosed with the cam phaser failure. The contact was informed that the cam phaser needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for further assistance. The approximate failure mileage was 184,000.

- Aplington, IA, USA

The contact owns a 2017 Ford F-150. The contact stated while starting the vehicle, there was an abnormal knocking sound coming from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the cam phasers needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 63,000.

- Hagerstown, MD, USA

The contact owns a 2017 Ford F-150. The contact stated that upon starting the vehicle, there was an abnormal knocking and rattling sound coming from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was determined that the cam phasers needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The approximate failure mileage was 81,000.

- Traverse City, MI, USA

The contact owns a 2017 Ford F-150. The contact stated that at cold start-ups, there was a rattling sound coming from the engine compartment. The cause of the failure was not diagnosed and repaired. The local dealer was notified of the failure and informed the contact that the failure was caused by the cam phasers. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 175,000.

- Parsons, KS, USA

The contact owns a 2017 Ford F-150. The contact stated that upon starting the vehicle, there was an abnormally loud rattling sound coming from the vehicle. There was no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with defective cam phasers and the cam phasers were replaced under warranty. The contact stated that almost two years later, the contact stated that the failure reoccurred. The dealer was informed about the failure and the contact was informed that the warranty had expired. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 65,000.

- Minnetonka, MN, USA

The contact owns a 2017 Ford F-150. The contact stated that upon starting the vehicle they heard an abnormal rattling sound emanating from the engine compartment. After the vehicle reached adequate temperatures, the rattling ceased but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the cam phasers. The vehicle was not repaired. After investigating the failure, the contact related the failure to Customer Satisfaction Program 21N03. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 158,000.

- Dublin, CA, USA

The contact owns a 2017 Ford F-150. The contact stated while driving at an undisclosed speed, there was a clanking sound coming from the engine. There was no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the cam phasers had failed and needed to be replaced. The vehicle was repaired but the failure persisted. The contact stated that while the vehicle was parked and turned off, the contact was unable to restart the vehicle. There was no warning light illuminated. The vehicle was towed to the dealer where it was diagnosed that the cam phasers had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The approximate failure mileage was 89,000.

- Jurupa Valley, CA, USA

The contact owns a 2017 Ford F-150. The contact stated that while driving on the highway at 40 MPH, there was a knocking sound coming from the engine. No warning light was illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was informed that the cam phasers were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 42,000.

- Wolcott, CT, USA

The contact owns a 2017 Ford F-150. The contact stated that upon starting the vehicle, the engine made an abnormally loud rattling sound. The vehicle was taken to the dealer, where it was diagnosed that the cam phasers had failed and needed to be replaced. The dealer informed the contact that the vehicle was not covered under Ford Campaign Number: 21N03 because the campaign had expired. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 68,000.

- Mcallen, TX, USA

The contact owns a 2017 Ford F-150. The contact stated that while starting the vehicle the contact heard a loud clanking noise with the check engine warning light illuminated. The vehicle was able to restart however, the failure recurred. The vehicle was taken to an independent mechanic where it was diagnosed that the cam phasers had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 130,000.

- Carleton, MI, USA

The contact owns a 2017 Ford F-150. The contact stated that after starting the vehicle, there was a loud rattling and knocking sound coming from the engine compartment. The vehicle was taken to the local dealer who diagnosed that cam phasers were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 170,000.

- Corapeake, NC, USA

The contact owns a 2017 Ford F-150. The contact stated that the engine was making an abnormal rattling sound on cold starts, with an abnormal ticking sound while driving at various speeds. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and advised the contact to report the issue to the NHTSA Hotline. The contact referenced Ford Campaign Number: 21N03. The failure mileage was approximately 99,000.

- Panama City, FL, USA

The contact owns a 2017 Ford F-150. The contact stated that during start-up, there was an abnormal rattling sound coming from the engine compartment. The rattling sound occurred while attempting to accelerate and the contact discovered that the engine was consuming an excessive amount of oil. While driving approximately 45 MPH, the vehicle started shaking and vibrating violently, with the check engine warning light blinking on and off. The vehicle was taken to the local dealer and was diagnosed and determined that the cam phasers were faulty and needed to be replaced. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the vehicle was not covered under an Extended Coverage for cam phaser failure. The failure mileage was 148,000.

- Saint Augustine, FL, USA

The contact owns a 2017 Ford F-150. The contact stated that an abnormal rattling sound came from the engine compartment upon starting the vehicle. The contact stated that after the engine had warmed up, the vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the cam phasers. The vehicle was not repaired. The vehicle was not repaired. After investigating the failure, the contact related the failure to Customer Satisfaction Program: 21N03. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 35,000.

- Portland, OR, USA

The contact owns a 2017 Ford F-150. The contact stated that upon starting the vehicle he heard an abnormal rattling sound emanating from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the cam phasers. The vehicle was repaired, but the failure reoccurred 38,050 miles later. After investigating the failure, the contact related the failure to Customer Satisfaction Program 21N03. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 49,950.

- Minneapolis, MN, USA

The contact owns a 2017 Ford F-150. The contact stated that while cold starting the vehicle, there was an abnormal knocking sound coming from the vehicle. The contact stated that the failure had occurred twice. The vehicle was taken to the dealer where it was diagnosed with cam phaser failure. The contact was informed that the cam phasers needed to be replaced. The vehicle was not repaired. In addition, the contact stated that previously the failure had occurred in 2020 and the cam phasers were replaced under warranty. The contact stated that the same part number was used to complete the repair. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 119,000.

- Richmond, VA, USA

The contact owns a 2017 Ford F-150. The contact stated that while driving at various speeds, there was an abnormal sound coming from the engine compartment. The contact stated that the failure had gotten progressively worse. The vehicle was taken to the local dealer where it was diagnosed that the cam phasers and differential had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 66,000.

- El Dorado Hills, CA, USA

The contact owns a 2017 Ford F-150. The contact stated that upon starting the vehicle, there was an abnormal sound coming from the engine compartment. No warning lights were illuminated. The vehicle was not diagnosed; however, the dealer was informed of the failure by phone. The contact stated that the issue persisted, and the sound became louder; however, the vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact researched online and discovered that the failure was related to two phasers in the Eco boost engine. The manufacturer was notified of the failure; however, no assistance was offered. The contact stated that Ford did provide a Customer Service Program: 21N03; and informed the contact to call the NHTSA Hotline to report the failure. The approximate failure mileage was 86,000.

- Ripley, TN, USA

The contact owns a 2017 Ford F-150. The contact stated that the vehicle made an abnormal rattling sound on cold starts. The dealer was notified of the failure and informed the contact that the failure was related to Ford Campaign Number: 21N03. The vehicle was not diagnosed or repaired. The contact stated that the cam phaser was previously replaced under an Extended Warranty coverage; however, the failure persisted. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 35,000.

- West Lafayette, IN, USA

The contact owns a 2017 Ford F-150. The contact stated while cold starting the vehicle, the vehicle was idling roughly, and the entire vehicle was vibrating. The contact was not aware of any warning lights being illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the cam phasers needed to be replaced. The vehicle was repaired. The contact stated that the failure reoccurred two more times and the dealer replaced the cam phasers. The contact stated that the failure had reoccurred but was advised by the dealer that the vehicle was no longer under warranty. The manufacturer was informed of the failure. The contact researched online and related the failure to Customer Satisfaction Program: 21N03 Cam Phaser replacement (Engine and Engine Cooling). The failure mileage was approximately 83,000.

- Cheyenne, WY, USA