Owners of 1995-98 2.5TL and 1996-98 3.2TL models may complain of a growling or whining sound from one or both rear wheels.
One likely cause for the noise, Honda Motor Co.'s Acura division reported, is a water-damaged rear hub bearing. The water finds its way into the bearing by traveling from the wheel to the brake caliper, where it then enters the bearing via a deformed grease seal.
Installing parts from a new wheel bearing kit should eliminate the noise and prevent further trouble, according to the car maker.
Order part #06427-SW5-305 for 2.5TLs; or part #06427-SZ5-305 for 3.2TL models.
Included in the kits are two rear bearing assemblies, two splash guards to divert the water, two spindle nuts and two grease caps.
Some 1999-2002 Chevy Cavaliers and Pontiac Sunfires with 2.2-liter four-cylinder engines may emit a rattle or knock when the steering wheel is turned while going over rough road surfaces.
General Motors Co. said one likely cause for the noise is excessive hydraulic pressure acting on the steering rack.
Installing an updated power steering return line (part #22717000) and a new fluid restrictor (part #22592200) should help eliminate the noise. For your information, the fluid restrictor is installed in the return line nipple at the power steering pump.
Some 2003 Isuzu Ascender models may emit a pop or rattle from underneath the vehicle.
One likely cause of the noise, according to Isuzu Motors America Inc., is the factory heat shield separating from the muffler.
Re-securing the shield to the muffler using two special order retaining straps, part #8-15164-621-0, should eliminate the annoyance in short order.
Start the fix by getting the vehicle on a lift. Working at the front of the muffler, install the first retaining strap around the muffler and heat shield.
Now pull the strap tight and tighten the Allen head screw to 10 ft-lbs.
Repeat the procedure by installing the other strap at the rear of the muffler.
To complete the repair, lower the vehicle, start the engine and verify that the noise has been eliminated.
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] For more Factory Fixes, go to www.tirebusiness.com and click on the Service Zone icon.