The driver of a 2006-09 Ford Focus may come into your store with a complaint that the power steering system is noisy.
Begin your diagnosis by checking the power steering reservoir for a low fluid level.
If the reservoir is low, Ford said one probable cause is a leaky O-ring on the inlet side of the reservoir. The O-ring leaks because of burrs in the steering pump bore.
Removing the burrs with fine emery cloth and replacing both reservoir O-rings, part No. 6S4Z-3F886-A, is the quick fix.
"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].