Could this be a timing chain issue?
I hear a hard knock or two when starting the vehical usually on hot starts and it sounds like it has bad gas going up some inclines. Could this be a timing chain?

A new look will greet those bent on kicking the tires of the 2011 Infiniti QX56. Front, rear, inside, and topside all get some sexy exterior curves, added cabin refinement, and more user-friendly doo-dads, giving this big SUV a jolt of much-needed distinction. Meanwhile the V8 powerplant also gets a tweak or two, with direct injection for some 80 extra ponies and 20 additional lb-ft of torque, and variable valve timing for (marginally) better fuel economy. Offered in only one Base trim level, the seven/eight passenger QX56 is delivered in the standard rear-wheel-drive (RWD) configuration, with on-demand four-wheel drive (4WD) available – at a significantly heftier price.
Roomy and refined, brawny and bodacious, the 2011 QX56 offers passengers a more high-end cabin atmosphere, while its durable construction ensures added safety and the oomph to tow up to 8,500 pounds of trailer. Based on Nissan’s U.S.-deprived Patrol SUV, this top-shelf Sport Ute remains one of the few body-on-frame heavy haulers still standing, and competes with the likes of the Lincoln Navigator and Cadillac Escalade in the somewhat oxymoronic, but no doubt lucrative, luxury SUV market.
Powering this behemoth is the newly beefed up 5.6-liter V8 engine, now under the auspices of a standard seven-speed auto-manual transmission with hill-start assist. Expect some 400 hp and 413 lb-ft of torque out of this beast, but, beware that with an estimated 14/20 mpg, a familiarity with area gas stations will be required.
A self-leveling suspension system remains standard for the 2011 QX56, while the part-time 4WD system features electronic hi-lo gear selection, auto-locking hubs, and a center-mounted, limited-slip locking differential.
In keeping with its upscale image, the 2011 QX56 pampers owners and passengers with a plethora of standard appearance features and creature comforts. Outside, 20-inch alloy wheels and step running boards complement a trailer hitch and wiring, power sunroof, power liftgate, roof rack, and skid plates to produce a refined silhouette. Inside, leather upholstery, multi-level heated, power-adjustable front seats, second-row captain's chairs, power-folding third-row seats, remote power door locks, heated, reverse-tilting power mirrors, power-adjustable telescoping tilt-wheel steering, cruise control, keyless ignition, universal remote garage door opener, three-zone air conditioning, simulated aerial camera technology, three-zone climate control, leather, alloy, and wood dash and cabin trim, and memory for driver's settings give off an air of technical sophistication and luxurious comfort.
Three options packages, the Deluxe Touring Package, Technology Package, and Theatre Package offer such additional amenities as Hydraulic Body Motion Control for added stability in hard cornering, heated second-row seats, 22-inch forged aluminum wheels, radar-guided Intelligent Cruise Control, blind-spot warning and lane-departure warning systems, and dual 7-inch rear-seat DVD monitors. Meanwhile standalone options, including illuminated kick plates, second-row bench seats (for eight-passenger capacity), a vehicle alarm impact sensor, and a heated steering wheel, are also available.
Safety-wise, the 2011 QX56 is delivered with standard four-wheel ABS, traction and stability control, dual front side-mounted airbags, three-row head airbags, active front headrests, turn-signal-integrated exterior mirrors, front fog/driving lights, HID headlights, front and rear parking sensors, and a post-collision safety system. The well-regarded blind-spot warning and lane departure systems are available with the Technology Package.
Outright value is cited as one of the major reasons owners chose the 2010 Infiniti QX56, though the understandably dismal fuel efficiency of this outsized trailering machine diminishes its luster a bit for some. Iffy front brakes, inadequate front seat support, and a frustrating lack of separate iPod-nav-audio interface also leave some owners cold. Looks, over-the-top standard features, a roomy and comfortable cabin, plush ride, and confidence-inspiring bulk, however, have virtually all owners praising their QX56. The 2011 version, due this summer, should be even better.
I hear a hard knock or two when starting the vehical usually on hot starts and it sounds like it has bad gas going up some inclines. Could this be a timing chain?
I cannot get past the page that wants $29.95 to list my car? We have listed three vehicles through this page in the past and all we are attempting to do is relist? This looks like a new page. We used to have the option to give CarGurus an amount if the car sold? It looks as if several people are having this problem? Please advise.
My kids were playing around with the remote soon after we got this car and now one of the screens is not working. It shows the display setup menu but it won’t show the movie playing. Is there an easy fix for this?
Cannot post my vehicle on CarGurus. Keep getting error, what should I do?
Air Conditioning
Polyphenol air filtration · Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Front side curtain airbags
Audio System
Antenna Type: diversity · USB auxiliary audio input · Hard Drive: 9.3GB · Wireless headphones · In-Dash CD: DVD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Satellite Radio: SiriusXM · 2 subwoofers · Total Number of Speakers: 11
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 13.8 · Front brake width: 1.18 · Front brakes: ventilated disc · Rear brake diameter: 13.8 · Rear brake width: 0.79 · Rear brakes: ventilated disc
Comfort Features
Door sill trim: illuminated scuff plate · Floor Mat Material: carpet · Floor Mats: front · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Cargo area power outlet: 12V · Center console: front console with armrest and storage · Cruise control: adaptive · Cupholders: rear · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: side mirrors · Multi-function remote: proximity entry system · One-touch windows: 4 · Power outlet(s): two 12V front · Power steering: speed-proportional · Power windows: lockout button · Reading lights: third row · Rear power outlet: 12V · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: cruise controls · Storage: sunglasses holder · Universal garage door opener: Homelink · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Drivetrain
Axle ratio: 2.94
Engine
Alternator: 150 amps
Exterior Features
Door handle color: chrome · Front bumper color: body-color · Grille color: chrome · Mirror color: body-color · Mudguards: front · Rear bumper color: body-color · Rear spoiler: roofline spoiler · Rear spoiler color: body-color · Rear trunk/liftgate: liftgate · Running boards: body color · Window trim: chrome
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 3
In Car Entertainment
Infotainment screen size: 8 in. · Video monitor size: 7 · Video system: auxiliary audio/video input
Instrumentation
Fuel economy display: range · Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off · Tail and brake lights: LED
Mirrors
Exterior mirrors: heated
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 8
Rear Seats
Type: captains chairs
Roof
Moonroof: tilt · Roof rack: with crossbars · Roof rails: black
Safety
Active head restraints: driver · Camera system: rearview · Child seat anchors: LATCH system · Crumple zones: rear · Parking sensors: rear
Seatbelts
Emergency locking retractors: front and rear · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Second row seatbelts: 3-point · Third row seatbelts: 3-point
Seats
Driver seat power adjustments: height · Front seat type: bucket · Rear headrests: adjustable · Rear seat folding: flat · Third row headrests: adjustable · Third row seat folding: flat · Upholstery: leather-trimmed
Security
Power door locks: anti-lockout
Spare Tire
Mount Location: underbody · Size: full-size
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 19.7 · Turns lock-to-lock: 3.5
Suspension
Air Suspension: rear · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Leveling: self leveling suspension · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: double wishbone · Stabilizer bar(s): rear
Telematics
Navigation system: with voice recognition · Phone: voice activated · Phone wireless data link: Bluetooth
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Towing and Hauling
Trailer hitch: Class IV · Trailer wiring: 7-pin
Wheels
Wheel spokes: 9
Windows
Front wipers: rain sensing · Liftgate window: manual flip-up · Power windows: with safety reverse · Rear wiper: with washer · Solar-tinted glass: front
Air Conditioning
Polyphenol air filtration · Climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Front side curtain airbags
Audio System
Antenna Type: diversity · USB auxiliary audio input · Hard Drive: 9.3GB · Wireless headphones · In-Dash CD: DVD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Satellite Radio: SiriusXM · 2 subwoofers · Total Number of Speakers: 11
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 13.8 · Front brake width: 1.18 · Front brakes: ventilated disc · Rear brake diameter: 13.8 · Rear brake width: 0.79 · Rear brakes: ventilated disc
Comfort Features
Door sill trim: illuminated scuff plate · Floor Mat Material: carpet · Floor Mats: front · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Cargo area power outlet: 12V · Center console: front console with armrest and storage · Cruise control: adaptive · Cupholders: front, rear and third row · Dimming rearview mirror: auto-dimming · Easy entry: manual rear seat · Memorized settings: steering wheel · Multi-function remote: proximity entry system · One-touch windows: 4 · Power outlet(s): two 12V front · Power steering: speed-proportional · Power windows: lockout button · Reading lights: front · Rear power outlet: 12V · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: cruise controls · Storage: cargo net · Universal garage door opener: Homelink · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Drivetrain
Axle ratio: 2.94
Engine
Alternator: 150 amps
Exterior Features
Door handle color: chrome · Front bumper color: body-color · Grille color: chrome · Mirror color: body-color · Mudguards: rear · Rear bumper color: body-color · Rear spoiler: roofline spoiler · Rear spoiler color: body-color · Rear trunk/liftgate: power operated · Running boards: body color · Window trim: chrome
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 3
In Car Entertainment
Infotainment screen size: 8 in. · Video monitor size: 7 · Video system: auxiliary audio/video input
Instrumentation
Fuel economy display: MPG · Warnings and reminders: low oil pressure
Lights
Exterior entry lights: puddle lamps · Headlights: Auto on/off · Tail and brake lights: LED
Mirrors
Exterior mirrors: reverse gear tilt
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 8
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power glass · Roof rack: with crossbars · Roof rails: black
Safety
Active head restraints: driver · Camera system: rearview · Child seat anchors: LATCH system · Crumple zones: rear · Parking sensors: front
Seatbelts
Emergency locking retractors: front and rear · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Second row seatbelts: 3-point · Third row seatbelts: 3-point
Seats
Driver seat power adjustments: height · Front seat type: bucket · Rear headrests: adjustable · Rear seat folding: flat · Third row headrests: adjustable · Third row seat folding: flat · Upholstery: leather-trimmed
Security
Power door locks: anti-lockout
Spare Tire
Mount Location: underbody · Size: full-size
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 19.7 · Turns lock-to-lock: 3.5
Suspension
Air Suspension: rear · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Leveling: self leveling suspension · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: double wishbone · Stabilizer bar(s): front
Telematics
Navigation system: with voice recognition · Phone: voice activated · Phone wireless data link: Bluetooth
Third Row Seat
Type: 40-60 split bench
Tires
Type: performance
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Towing and Hauling
Trailer hitch: Class IV · Trailer wiring: 7-pin
Wheels
Wheel spokes: 9
Windows
Front wipers: rain sensing · Liftgate window: manual flip-up · Power windows: with safety reverse · Rear wiper: intermittent · Solar-tinted glass: front
Air Conditioning
Polyphenol air filtration · Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Third row side curtain airbags
Audio System
Antenna Type: element · USB auxiliary audio input · Hard Drive: 9.3GB · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Satellite Radio: SiriusXM · 2 subwoofers · Total Number of Speakers: 11
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 13.8 · Front brake width: 1.18 · Front brakes: ventilated disc · Rear brake diameter: 13.8 · Rear brake width: 0.79 · Rear brakes: ventilated disc
Comfort Features
Door sill trim: illuminated scuff plate · Floor Mat Material: carpet · Floor Mats: front · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Cargo area power outlet: 12V · Center console: rear console with armrest and storage · Cruise control: adaptive · Cupholders: front · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: side mirrors · Multi-function remote: proximity entry system · One-touch windows: 4 · Power outlet(s): two 12V front · Power steering: speed-proportional · Power windows: lockout button · Reading lights: rear · Rear power outlet: 12V · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: audio · Storage: door pockets · Universal garage door opener: Homelink · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Drivetrain
4WD Type: on demand · Axle ratio: 2.94 · Transfer Case: electronic hi-lo gear selection
Engine
Alternator: 150 amps
Exterior Features
Door handle color: chrome · Front bumper color: body-color · Grille color: chrome · Mirror color: body-color · Mudguards: front · Rear bumper color: body-color · Rear spoiler: roofline spoiler · Rear spoiler color: body-color · Rear trunk/liftgate: liftgate · Running boards: body color · Window trim: chrome
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 3
In Car Entertainment
Infotainment screen size: 8 in. · Video monitor size: 7 · Video system: auxiliary audio/video input
Instrumentation
Fuel economy display: range · Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off · Tail and brake lights: LED
Mirrors
Exterior mirrors: power
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 8
Rear Seats
Type: captains chairs
Roof
Moonroof: with wind deflector · Roof rack: with crossbars · Roof rails: black
Safety
Active head restraints: driver · Camera system: rearview · Child seat anchors: LATCH system · Crumple zones: rear · Parking sensors: rear
Seatbelts
Emergency locking retractors: front · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Second row seatbelts: 3-point · Third row seatbelts: 3-point
Seats
Driver seat power adjustments: height · Front seat type: bucket · Rear headrests: adjustable · Rear seat folding: flat · Third row headrests: adjustable · Third row seat folding: split · Upholstery: leather-trimmed
Security
Power door locks: anti-lockout
Spare Tire
Mount Location: underbody · Size: full-size
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 19.7 · Turns lock-to-lock: 3.5
Suspension
Air Suspension: rear · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Leveling: self leveling suspension · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: double wishbone · Stabilizer bar(s): rear
Telematics
Navigation system: with voice recognition · Phone: voice activated · Phone wireless data link: Bluetooth
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Towing and Hauling
Trailer hitch: Class IV · Trailer wiring: 7-pin
Wheels
Wheel spokes: 9
Windows
Front wipers: variable intermittent · Liftgate window: manual flip-up · Power windows: remote operation · Rear wiper: with washer · Solar-tinted glass: front
Air Conditioning
Polyphenol air filtration · Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: diversity · USB auxiliary audio input · Hard Drive: 9.3GB · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Satellite Radio: SiriusXM · 2 subwoofers · Total Number of Speakers: 11
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 13.8 · Front brake width: 1.18 · Front brakes: ventilated disc · Rear brake diameter: 13.8 · Rear brake width: 0.79 · Rear brakes: ventilated disc
Comfort Features
Door sill trim: stainless steel · Floor Mat Material: carpet · Floor Mats: front · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Cargo area power outlet: 12V · Center console: front console with armrest and storage · Cruise control: adaptive · Cupholders: rear · Dimming rearview mirror: auto-dimming · Easy entry: power steering wheel · Memorized settings: 2 driver · Multi-function remote: proximity entry system · One-touch windows: 4 · Power outlet(s): two 12V front · Power steering: speed-proportional · Power windows: lockout button · Reading lights: rear · Rear power outlet: 12V · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: audio · Storage: front seatback · Universal garage door opener: Homelink · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 10
Drivetrain
4WD Type: on demand · Axle ratio: 2.94 · Transfer Case: electronic hi-lo gear selection
Engine
Alternator: 150 amps
Exterior Features
Door handle color: chrome · Front bumper color: body-color · Grille color: chrome · Mirror color: body-color · Mudguards: front · Rear bumper color: body-color · Rear spoiler: roofline spoiler · Rear spoiler color: body-color · Rear trunk/liftgate: power operated · Running boards: body color · Window trim: chrome
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 3
In Car Entertainment
Infotainment screen size: 8 in. · Video monitor size: 7 · Video system: auxiliary audio/video input
Instrumentation
Fuel economy display: MPG · Warnings and reminders: coolant temperature warning
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off · Tail and brake lights: LED
Mirrors
Exterior mirrors: integrated turn signals
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 8
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: with wind deflector · Roof rack: with crossbars · Roof rails: black
Safety
Active head restraints: driver · Camera system: rearview · Child seat anchors: LATCH system · Crumple zones: front · Parking sensors: front
Seatbelts
Emergency locking retractors: front and rear · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Second row seatbelts: 3-point · Third row seatbelts: 3-point
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Rear headrests: adjustable · Rear seat folding: split · Third row headrests: adjustable · Third row seat folding: power · Upholstery: leather-trimmed
Security
Power door locks: anti-lockout
Spare Tire
Mount Location: underbody · Size: full-size
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 19.7 · Turns lock-to-lock: 3.5
Suspension
Air Suspension: rear · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Leveling: self leveling suspension · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: double wishbone · Stabilizer bar(s): rear
Telematics
Navigation system: hard drive navigation system · Phone: voice activated · Phone wireless data link: Bluetooth
Third Row Seat
Type: 40-60 split bench
Tires
Type: performance
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Towing and Hauling
Trailer hitch: Class IV · Trailer wiring: 7-pin
Wheels
Wheel spokes: 7
Windows
Front wipers: rain sensing · Liftgate window: manual flip-up · Power windows: remote operation · Rear wiper: with washer · Solar-tinted glass: front