Power Steering

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Nov 11, 2016 | 07:39 AM

vavtx

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Mountain Pass

Joined: Sep 2016

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Power Steering

My F350 makes a noise that sounds like a vacuum leak when the wheel is turned all the way left or right. Is that normal? Does everyone else's do the same thing?

Nov 11, 2016 | 08:09 AM

charlesweaver3

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Joined: Jun 2016

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Mine does the same thing...

Nov 11, 2016 | 08:12 AM

Rasalas

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Joined: May 2007

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From: Western New York

Quote:

Originally Posted by vavtx

My F350 makes a noise that sounds like a vacuum leak when the wheel is turned all the way left or right. Is that normal? Does everyone else's do the same thing?

All power steering does that: It is a pressure relief valve protecting the seals when at full lock. Best to back off enough to stop the sound and save the relief valve, although I have never heard of one going bad it sounds amateur to continue at full lock.

Nov 11, 2016 | 09:47 AM

troverman

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Joined: Apr 2013

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From: NH

Quote:

Originally Posted by vavtx

My F350 makes a noise that sounds like a vacuum leak when the wheel is turned all the way left or right. Is that normal? Does everyone else's do the same thing?

Mine does, and my two previous 2016 diesels did not. In fact, mine kind of makes a whining noise without even turning to full lock. No adaptive steering on my truck.

After driving 4 different Super Duties of the previous generation, my first thought after picking up this truck is that something was wrong with the power steering. I'm still planning on asking the dealer to check it out when it eventually goes in for an oil change.

Nov 11, 2016 | 11:56 AM

NStorm

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From: Corn Country, Kansas

Mine does this as well.

Nov 11, 2016 | 12:03 PM

Rasalas

Cargo Master

Joined: May 2007

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From: Western New York

Quote:

Originally Posted by troverman

Did you check the P/S fluid level? Even a few ounces low can cause the pump to whine.

Nov 11, 2016 | 12:20 PM

troverman

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Joined: Apr 2013

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From: NH

Quote:

Originally Posted by Rasalas

Did you check the P/S fluid level? Even a few ounces low can cause the pump to whine.

First thing I checked. Sitting exactly at the "Full" line and smelled completely clean.

I wondered if it was different than what I was used to because this truck uses hydroboost brakes...