Sup Mod keeping the peace
Joined: Dec 2004
Location: NJ (Philadelphia area)
The 2002 - 2006 QR25DE engine sold in the United States has been subject to a significant number of problems in its lifetime. A variety of mechanical flaws have led to numerous technical service bulletins, recalls, repairs, and outright engine replacements.
Vehicles with the QR25DE may ingest material from a damaged pre-catalyst resulting in increased oil consumption.
Power valve screws in the intake manifold may become loose and result in unstable idling or power loss.
Talk to several Nissan dealers to see if they can do something for you; if your car is still under warranty, then the dealer can replace the engine without charge to you.
KA-T for life, yo!