It is not uncommon one or both of the exhaust manifolds to crack resulting in an exhaust leak. Symptoms will begin as a ticking type noise noted on acceleration when the engine is cold.
Resources for the Repair and Maintenance of your 2008 Infiniti QX56
2008 Infiniti QX56
2008 Infiniti QX56 Problems
The rear power door may not open or close properly, or make a grinding noise from inside the rear trim panel. If this occurs our technicians recommend to check for loose or damaged hardware at the rear door motor. Replace damaged hardware as required and use bolt retaining compound when reassembling the door motor hardware.
The fuel gauge may be slow to register, fail to read full when the gas tank is actually full, or read inaccurately. Our technicians tell us there is a redesigned fuel tank sender unit to remedy this problem.
A clunking or popping noise may develop when driving over pot holes or rough roads, the front coil springs may be the source of the noise. Our technicians tell us updated parts are available to address this problem.
The GPS screen may intermittently "lock up" and the faulty can be corrected by turning off the ignition for several minutes. Our technicians tell us that updating the GPS software should correct this concern.
2008 Infiniti QX56 Recalls (Recent)
RepairPal Expert Overview:
The A-pillar trim finishers may impede proper side curtain air bag deployment. This could cause occupant injury during a collision. Dealers will replace the A-pillar finishers. This recall began on August 16, 2010.
RepairPal Expert Overview:
The pin that secures the brake pedal to the mounting bracket may become dislodged. This would cause the pedal to become loose, and could compromise braking action. Dealers will inspect the pivot pin area and replace the brake pedal assembly if necessary. This recall began on March 22, 2010.
RepairPal Expert Overview:
The instrument panel fuel gauge may show fuel in the fuel tank when there is none, typically about 1/4 when the tank is empty. This could cause the vehicle to run out of gas and stall, increasing the risk of a crash. Dealers will replace the fuel sender unit inside the fuel tank to correct this concern. This recall is expected to begin on March 22, 2010.
Summary: NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.Learn more »
2008 Infiniti QX56 Questions and Answers
my climate control fan continues to blow once it been cut off
2008 Infiniti qx56. As soon as i turn the ignition, air blows thru the vents. When we engage the A/C it works normal. Havn't tried the heat. But even when all climate control is OFF. Fan s...
The rear door automatic open/close function stopped working with all sources... the button on key fob, the handle and the button on dash. Door must be opened and closed manually. What happened? W...
It is extremely difficult to push between gears b/c it is crumpled up at bottom part. Just seems to be off track. Hoping it is that easy but wondering if anyone else has experienced this? Someon...
2008 Infiniti QX56 Reviews
Mine required new struts. I believe the biggest noise maker and general slop inducer was worn out sleeves that go onto the top of the strut rod. Before replacing the struts and these small, round sleeves/bearings that the tops of the struts go through, I had a lot of noise and generally goofy action in the front end when going through potholes and uneven/rippled pavement. $900 fix, but it did fix it. My truck had 95k miles on it at the time of repair.
My Infiniti QX56 gives me problems when driving over potholes, bumps, uneven roadways -- the steering wheel pulls to the right or just shakes out of my hands. I've taken it to the dealership 3 times for this problem and they cannot seem to figure out what's wrong. They told me that it was b/c I did not have enough air in my tires (first visit)-- WRONG; front end needed aligning (second visit) -- WRONG; needed Michelin tires b/c that's what the manufacturer recommends (third visit) (I had 4 new MICHELIN tires, new front brakes, new struts totaling $2,500) -- WRONG! What now??????
I purchased a 2006 QX56 and loved it; however I had a lot of problems with the vehicle to include a bad transmission, cracked front and rear differential housings, one cracked exhaust manifold and ongoing electrical issues. after talking with the dealer I decided I would upgrade to a 2008 model and just consider the first vehicle a "lemon". The 2008 model I purchased was a little nicer than the 2005, with better technology and for the most part it has been a much better vehicle from a repair standpoint. The main problem that remained was the cracked exhaust manifold; BOTH sides cracked about 12,000 after the warranty ran out. When I was told what the problem was causing the "noise" I asked "isn't this unusual" and the answer from the service agent and the mechanic was "no, this happens to all the QX's; the manifolds are made out of stainless steel and the heating and cooling causes them to crack!" Then I asked why this would not be considered a manufacturer's problem and I was told "it just isn't; you are out of warranty and its YOUR problem!" they wanted $2,800 to fix the two manifolds, which I declined. Instead I decided that I would ask Infiniti WHY THEY ARE NOT FIXING an OBVIOUS DEFECT? How can they expect to keep customers loyal to their brand if they are not going to back up their product? I LOVE THIS VEHICLE but if Infiniti is not going to back up their product, then I will never buy another one and I will make it my mission in life to take away as many future customers as possible. I recommend you buy this vehicle IF you can talk your dealer into GIVEING you an extended warranty that exceeds 100,000 miles