Power steering hiss

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Feb 21, 2018 | 02:06 PM

#16

CPal

Tuned

Joined: Oct 2017

Posts: 364

Likes: 5

Mine does same at full lockout. No adaptive steering. I do frequent turn arounds in middle of rural gravel roads and notice it everytime.

Feb 21, 2018 | 02:12 PM

#17

Horsehaulin8

Junior User

Joined: Nov 2017

Posts: 89

Likes: 0

Mine does it as well. Here's to hoping it's normal. Lol

Feb 21, 2018 | 02:29 PM

#18

Pioneer1

Tuned

Joined: Oct 2017

Posts: 266

Likes: 48

From: Ohio

Same here. About 2500 miles on truck but just noticed it about 300 miles ago

Feb 22, 2018 | 07:34 PM

#19

cdnfireman

Senior User

Joined: Oct 2006

Posts: 165

Likes: 1

From: Calgary, Canada

The noise you’re hearing is the pressure relief valve built into the power steering system opening at lock to allow the fluid to bypass the steering gear and return to the reservoir. If it wasn’t there the pump would be dead ended and the fluid would overheat and boil inside the pump. Normal sound when you hold the steering wheel hard to either side. Back off the steering a small amount and it will stop.

Feb 22, 2018 | 07:43 PM

#20

mrgrayaz

More Turbo

Joined: Sep 2016

Posts: 618

Likes: 6

Noisy noisy. Mine is as well, brand new truck.

Ford has never been able to figure out power steering.....I just curse Ford under my breath and keep going.

My 2005 6.0 was better, it had the Hydro boost brakes...whole different setup :thumbups:

Last edited by mrgrayaz; Feb 22, 2018 at 07:59 PM. Reason: Breaks/Brakes