Mechanics

WHY WOULD MY RAINIER MAKE A ROARING NOISE PERIODICALLY WHEN THE STEERING WHEEL IS MOVED, IF THE POWER STEERING RESERVOIR HAS ADEQUATE FLUID?

2004 Buick Ranier • 86,600 miles

I hear the sound sometimes when I turn my steering wheel. Not everytime. I had the reservoir checked by an NTB tech, but the sound would not happen when the tech drove the car.
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Alley Cat
October 24, 2011.



The pump may be "cavitating" and causing air bubbles - and the air may be trapped in the lines. Ask your mechanic to bleed the air out of the lines. Sometimes a hand-held vacuum pump is necessary.

Dan_K
Oct 26, 2011.