Some 2009-10 Chrysler 300s and Dodge Magnum, Charger and Challenger models with 5.7L engines may emit a hissing or groaning sound from the power steering system when the driver performs low-speed turns.
According to Chrysler, the noise usually affects vehicles built before Jan. 21, 2010 and is due to a poorly designed power steering return hose.
Installing an updated hose with better flow characteristics (part No. 68067353AB for vehicles with an external power steering cooler; part No. 68044363AA for vehicles without a cooler) should eliminate the noise.
If it doesn't, Chrysler says you'll need to replace the steering gear, as well.
"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].