Question:Does the power steering fluid ever need to be
changed?
Answer:Not normally, but it should be if the steering
rack or pump are ever replaced. Under normal circumstances, the
fluid in the power steering system should last the life of the
vehicle (or the life of the major power steering components, whichever
comes first). But as the system accumulates miles, microscopic
particles of metal and rubber can buildup in the fluid. These
particles can act like an abrasive and accelerate pump and gear
wear, so the fluid should be changed if the original pump or rack
has failed to prevent contaminating the new parts with dirty fluid.
CHECK PERIODICALLY
Even though the fluid in your power steering system does not
normally require changing, it's a good idea to check the fluid
level periodically (say once a month or when changing the engine
oil and filter).
If the level is low, add fluid as needed to bring it up to
the full level (hot or cold). Then inspect the hoses, pump and
steering gear for leaks. More than a few ounces of fluid in the
rubber bellows of a power steering rack indicates internal wear
and leakage.
Always use the type of fluid specified by the vehicle manufacturer
(Dexron II or a special blend of power steering fluid).
