INFINITI; HITACHI BRAND POWER STEERING GEAR SERVICE INFORMATION
When diagnosing an applied vehicle for possible power steering gear (rack and pinion steering rack, or steering rack) leak issues, in some cases it may appear the steering rack is leaking when actually, its not. Use this service bulletin to help make a more accurate diagnosis of the steering rack.
20042010 INFINITI QX56; POWER BACK DOOR WILL NOT OPEN/CLOSE AND MAKES NOISE
While operating the power back door (lift gate),
The power motor will not open or close the door,
and/or
There is a grinding and popping noise inside the rear trim panel.