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If all the air isn't purged from the system, and if the fluid level is low, the pump will continue to make noise. Also, it may be that one of the idler bearings or accessory bearings are causing the noise, and not the steering pump.

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โˆ™ 2004-11-26 10:54:41
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Q: What causes a noise in the power steering pump in a 1992 Grand Marquis and the noise is still there after new one was installed?
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