Somersworth Auto Repair

Somersworth Power Steering Fluid Flush

The heart of any power steering system is its pump.  The pump pressurizes the power steering fluid that provides assist for steering.  Most pumps are driven by a belt that is run by the engine, a few are electrically powered.  A high-pressure hose passes fluid from the pump to the steering gear.  A low-pressure hose returns the fluid back to the pump.  These hoses can develop leaks, so it is a good idea to inspect them at every oil change.  Low fluid can damage the power steering pump.  The fluid needs to be compatible with the hoses and seals.  The fluid cleans, cools and lubricates the power steering system.  It breaks down as the years go by and collects unwanted moisture, so it needs to be replaced from time to time.  Many manufacturers specify power steering service intervals.  When a power steering fluid flush is performed, we will use a detergent to clean the system, flush out the old fluid and replace it with the manufacturer specified new power steering fluid.  Here are some warning signs of trouble with your power steering; it’s harder to turn the wheel, there’s erratic power assist, you hear loud whining coming from the pump, you have to top-off the fluid frequently or you hear squealing belts.

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