Question about 2007 Jeep Wrangler Unlimited Rubicon 2 Doors

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Power steering pump whines at first start up of the day.

If the vehicle sits for about six hours or longer, the power steering pump will whine momentarily when you start the vehicle.

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This is common with many cars due to the hydraulic fluid being cold and causing the pump to moan/whine for a short time as it's working harder to move the fluid as it's thicker until it gets a little heat into it; this will be more pronounced on a very cold or freezing day. Any noise when the pump has warmed up is another issue entirely.

Posted on Jan 11, 2009

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