Some 2007-08 Jeep Wranglers with 3.8-liter engines and manual transmissions built before June 5, 2008, may emit a squeak or rattle from the bellhousing area.
According to Chrysler, the noise usually occurs just as the clutch pedal is engaged, on throttle tip-in or when decelerating abruptly. Design irregularities in the clutch disc are the cause of the trouble.
Installing a redesigned clutch disc with an upgraded lining formulation and heavier damper springs, Part No. 52104732AC, should put an end to the noise issue.
"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].
Be on the lookout for Tire Business' 5 Factory Fixes newsletter, publishing the first Friday of each month.