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I hear the sound sometimes when I turn my steering wheel.

Tiny
ALLEY CAT
  • MEMBER
  • 2004 BUICK RANIER
  • 86,600 MILES
Why would my 2004 Buick Rainier make a roaring noise periodically when the steering wheel is moved, if the power steering reservoir has adequate fluid? Not every time. 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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Monday, October 24th, 2011 AT 10:33 AM

1 Reply

Tiny
DAN_K
  • MECHANIC
  • 213 POSTS
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.
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Wednesday, October 26th, 2011 AT 9:41 PM

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