Owners of some 2004-10 QX56 trucks may complain of a clunk, squeak or pop from the front suspension.
According to Infiniti, the noise is most obvious when turning, while driving over speed bumps or other rough surfaces or under deceleration or hard acceleration.
Defective front stabilizer bushings are the likely cause of the noise. Replacing the bushings with upgraded parts, part No. 54613-ZL10A, should eliminate further trouble.
It's best to clean the stabilizer bar with brake cleaner or a similar solvent before installing the new bushings.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].