2004 Infiniti QX56 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Infiniti QX56
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2004 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.
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 Check Engine Light may illuminate with controller area network (CAN) fault codes stored. Our technicians tell us that cleaning the electrical ground connections around the powertrain control module (PCM) to allow better electrical conductivity should help with this concern.
2004 Infiniti QX56 QuestionsService engine lite is on. Codes are p1168 and p1051. (1 answer)
Is it true that 2004 QX56 with these codes need to have computer reprogrammed.
The front brakes make a grinding noise that is not metal on metal when I depress the pedal. It last about as long as it takes to get to the shop and then it stops. A month later, the same thing. ABS braking system problem?
2004 Infiniti QX56 RecallsEngine Stalls Without Warning
A relay in the engine control power distribution module may arc and cause a failure which can result in engine stalling. Dealers will replace the relay inside the module free of charge to resolve the problem.
Nissan is recalling certain 2004 - 2010 Titan, Armada, & QX56 vehicles. Also included are 2005 - 2010 Frontier, Xterra, and Pathfinder vehicles for faulty front and/or rear suspension lower control arms. The problem is the control arm's attaching point to the vehicle's chassis. During the manufacturing process, some control arms may contain welds that do not meet Nissan's strength specs, and if they break, it may result in loss of vehicle control, and a possible crash.