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.
2011 infiniti QX56 engine problems
moderate 32 complaints filed with NHTSA · avg repair $3,100
Complaints
32
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 8 most recent
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 DETER…
TL* THE CONTACT OWNS A 2011 INFINITI QX56. WHEN THE VEHICLE WAS STARTED, AN UNUSUAL NOISE WAS HEARD FROM THE ENGINE AND THE CHECK ENGINE INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO NALLEY INFINITI MARIETTA (404-994-4328, LOCATED AT 2020 COBB PKWY SE, MARIETTA, GA 30060) WHERE IT WAS DIAGNOSED THAT THE TIMING BELT NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FA…
TL* THE CONTACT OWNS A 2011 INFINITI QX56. WHILE OPERATING THE VEHICLE, A RATTLING NOISE WAS PRESENT COMING FROM THE ENGINE COMPARTMENT. THE RATTLING NOISE BECAME MORE PREVALENT AFTER STARTING THE ENGINE. THE VEHICLE WAS EXAMINED BY AN INDEPENDENT MECHANIC WHO INDICATED THAT THE TIMING BELT WAS FAULTY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED, BUT NO ASSISTANCE WAS OFFERED. THE …
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 …
TL* THE CONTACT OWNS A 2011 INFINITI QX56. THE CONTACT HEARD AN ABNORMAL NOISE WHEN THE VEHICLE WAS BEING FUELED AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 126,557.
TL* THE CONTACT OWNS A 2011 INFINITI QX56. WHILE DRIVING VARIOUS SPEEDS, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED CONTINUOUSLY. THE VEHICLE WAS TAKEN TO SEWELL INFINITI OF FORT WORTH (5135 BRYANT IRVIN RD, FORT WORTH, TX 76132) WHERE IT WAS DIAGNOSED THAT THE CATALYTIC CONVERTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE…
"TAKATA RECALL" ONLY OWNER OF 2011 QX56, ALWAYS ON TIME WITH PROPER MAINTANCE. AFTER A RECALL ON THE TIMING CHAIN 2 DAYS AFTER PICKING UP VEHICLE THE SERVICE ENGINE LIGHT CAME ON, I CALLED THE DEALER THEY ADVISED IT WAS NORMAL TO GIVE IT A FEW DAYS. AFTER 3 DAYS LIGHT SES LIGHT CAME OFF, THEN ABOUT 8 MONTHS LATER THE SERVICE ENGINE SOON LIGHT WAS BACK, GOT IT CHECKED AND IT'S THE CATALYTIC CONVER…
Common questions
How serious is the engine problem on the 2011 infiniti QX56?
It's a documented issue but not catastrophic. 32 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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