My Power Steering Stops Working
Q. I have a 2009 Chevrolet Traverse. The power steering stops working at idle speed, comes back at 1,200 rpm, and works OK after that. On the internet, I have found mentions of a faulty pump, rack, and pinion unit, or even a clogged inline filter. Is there a known solution without replacing everything in the system?
A. There is a specific procedure to check the power steering system operation. There are a few tests you can do without specific tools. Start with a visual inspection of the power steering system by looking for damaged or leaking hoses. If all looks okay, you can perform a simple “flow test.’’ The power steering system should flow about one gallon of fluid per minute. If the pump is not following this amount, the pump will need replacing. At a professional shop, the technician will install gauges to test pump pressure to diagnose then failed part.
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