Question about 2003 Buick Century

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Draining of the rack and power steering

I topped off the power steering fluid in May of my 2003 Buick Century that has 82,000 miles on it. Since then there is a noisy low moaning sound when turning 90 degree corners. Now I am wondering if the fluid was too old (it was in an old container that has been sitting around in the garage for a long time) or if possibly someone could have even put old brake fluid in that container.

I have taken some of the dark fluid out and have put new in with a baster, but the noise persists. What is the best way to drain the rack and the power steering so I can get all of the old out of there and put new in?

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The best way is with a automotive suction gun (about $6), drain the reservoir and then refill until the fluid is clear, but from past years of many such noise concerns coming through the shop u will end up replacing the power steering pump.

Posted on Dec 14, 2008

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POWER STEERING


First off, verify that the power steering reservoir has the right amount of fluid and that it looks clean (not dirty brown or black). If so, try burping the reservoir to get any air out. Just start the car with the cap off and turn the wheel lock to lock, back and forth several times. This will force any air out of the system. If the fluid is low, top it off and take a drive to see if it's cured. If the fluid is filthy, use a turkey baster to **** out as much as you can, refill it with new fluid, burp the system again to circulate the fluid, and repeat the drain and refill procedure - do it a few times to try and get as much of the old stuff out as you can.

If you still have a problem, you should inspect (or have inspected) the rack and pinion, power steering pump and pressure lines, and also the bushings in your front suspension, as well as the inner and outer tie rods - any of those could cause the problem you're having.

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