2012 Infiniti QX56 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2012 Infiniti QX56
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2012 Infiniti QX56 ProblemsExhaust manifolds crack and make loud noise on acceleration
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.
An abnormal noise may develop from the timing chain area, Our technicians tell us it may be necessary to replace the variable valve timing camshaft shaft sprockets to correct this concern.
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.
2012 Infiniti QX56 QuestionsWhat should I look at if my windshield whipper fluid doesn't spray? And is full (1 answer)
45000 miles. Air pressure correct and tires have been balanced and rotated every 5000 miles. Wear is on the inside and outside of the tires.
2012 Infiniti QX56 RecallsPotential Fuel Leak
The fuel pressure sensor may not have been sufficiently tightened during vehicle production. As a result, the fuel pressure sensor may loosen over time resulting in a fuel leak. Any fuel leak increases the risk of a fire. Nissan / Infiniti dealers will replace the fuel pressure sensor as necessary to correct this concern.
On certain vehicles, the fuel pressure sensor may not have been tightened to the correct specification. As a result, the fuel pressure sensor may loosen due to heat and vibration, causing a fuel leak. Fuel leaks always increase the risk of a fire. Dealers will replace the fuel pressure sensor to correct this concern.