Four problems related to loud engine noise have been reported for the 2011 Infiniti QX56. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Infiniti QX56 based on all problems reported for the 2011 QX56.
Tl the contact owns a 2011 Infiniti Qx56. While driving 60 to 65 mph, the vehicle jerked and an abnormal noise was heard from the engine area. Also, the service engine indicator illuminated. The contact had to decelerate due to the noise. The contact drove the vehicle to an independent mechanic to be diagnosed, but no failure code was found initially. The mechanic reset the codes, test drove the vehicle, performed a second diagnostic test, and located failure codes for the timing chain, catalytic converter, and exhaust system. The manufacturer informed the contact that the vehicle was not included in the unknown manufacturer recall for the engine timing chain and catalytic failure. The vehicle was not taken to a dealer. The vehicle was not repaired. The approximate failure mileage was 200,500.
Tl- the contact owns a 2011 Infiniti Qx56. The contact stated that an abnormal noise occurred when the vehicle being fueled. The check engine warning light illuminated. The vehicle was not taken to a dealer or an independent mechanic for a diagnostic testing of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 126,557. Aw.
Tl the contact owns a 2011 Infiniti Qx56. The contact heard an abnormal noise coming from the vehicle. The vehicle was taken to pearson Infiniti (11701 midlothian turnpike, midlothian, va 23113, 1-(804) 527-0300) where it was diagnosed that the timing chain needed to be replaced. The contact was informed that the dealer would check TSB number: 16-015 and voluntary service campaign: p6305 to determine the guidelines to repair the vehicle. The vehicle was at the dealer waiting to be serviced. The manufacturer was notified of the failure. The failure mileage was not available.
Engine is making a loud noise on the front right side. Took it to my mechanic and he said is the timing chain and oil jet.