2018 Lincoln Navigator Engine Problems

cam phasers rattle during cold starts

The car rattles very loudly upon starting every time it is started. I have lost acceleration power while driving through intersections. I took to dealership and it is confirmed it is the cam phasers. No lights have come on in dash.

Vehicle serviced for cam shutter. They only flashed the computer. Did not fix the mechanical problem. Engine failure shortly afterwards at 100k. Loss of power, stalled after vehicle came to rest, could not restart. Towed to nearby dealership. Complete engine failure. Entire engine replaced by Ford Dealership near Corpus Christi -- 15k.

The contact owns a 2018 Lincoln Navigator. The contact received notification of Manufacturer Recall Number: 21B10 (CAM Phaser PCM Reprogram). The contact stated that the vehicle was taken to the dealer and the dealer performed the recall repair. After the recall repair, the engine was rattling during start-up. The contact then received notification of Manufacturer Recall Number: 21N03 (CAM Phaser Replacement). The vehicle was taken to the dealer and diagnosed with the engine rattling on cold start. The dealer replaced the Variable Cam Timing (VCT) and performed TSB 21-2119. The failure recurred while the contact was driving at 60 mph. There was a rattling noise coming from the engine and the vehicle lost motive power. The vehicle was towed to the dealer. The dealer diagnosed that an unknown part inside of the engine had fractured and that the crankshaft needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was 36,060.

The contact owns a 2018 Lincoln Navigator. The contact stated that there was a loud rattle, rough idle, and loss of power during acceleration after starting the vehicle. The vehicle was taken to the dealer and diagnosed that there was a cold start rattle on the eco-boost engine related to the cam phaser. The vehicle was not repaired and remained at the dealer. The dealer where the vehicle was purchased and Crest Lincoln (36200 Van Dyke Ave, Sterling Heights, MI 48312) were made aware of the failure and informed the contact that there was a recall associated with the failure. The manufacturer was made aware of the failure and informed the contact that the VIN was not under recall. The contact was referred to file a complaint with the NHTSA. The approximate failure mileage was 89,000.

The contact owns a 2018 Lincoln Navigator. The contact stated that upon starting the vehicle, the vehicle shuddered and made abnormal rattling and knocking sounds. There were no warning lights illuminated. The dealer informed the contact that the failure was a design failure and was caused by oil not being pumped up to the timing chain properly. The contact stated that he received an unknown customer satisfaction program for the failure however, the dealer informed the contact that the parts for the repair were not yet available. The contact also stated that while driving 50-60 MPH, and attempting to overtake another vehicle, the accelerator pedal was depressed but failed to respond, causing the vehicle to inadvertently decelerate. The contact did not recall whether there were warning lights illuminated during the failure. The contact stated that the failure had been reoccurring while driving at various speeds while attempting to overtake other vehicles. The contact stated that the warning message "Shift Fault" and other unknown warning lights were illuminated. The vehicle was taken to the dealer who diagnosed that the battery needed to be replaced. The contact stated that the battery was replaced; however, the failure reoccurred while driving. The vehicle was taken back to the dealer and diagnosed that the battery needed to be replaced and that the vehicle had lost communication with the Body Control Module (BCM). The contact stated that the vehicle was taken to the dealer several times and the vehicle had been with the dealer since July 2021. The manufacturer was notified of the failure and a case was opened. The manufacturer advised the contact to obtain a vehicle rental at his own expense and he would be reimbursed. The contact stated that he had been renting a vehicle since July and that the manufacturer had failed to cover the expenses. The vehicle was not repaired. The approximate failure mileage was 6,126.