Power steering issue
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New User
Joined: Feb 2012
Posts: 17
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From: gaylord, mi.
Power steering issue
Hello All, I have a 2007 F150 XLT, 5.4 flex fuel 4x4 truck. The other day my starter went bad, so I had to push the truck into my garage. After I repaired the starter, I started the truck, and now, my power steering has hard spots when I turn the wheel. Any help would be Greatly appreciated.
Hotshot
Joined: Jul 2005
Posts: 11,931
Likes: 180
I would assume you have air bubbles in the system.. Set in the driveway and start the motor. Turn the steering wheel all the way to the LEFT until you hear the pump go over relief pressure... keep it there for 2 seconds... Now rotate the wheel all the way to the right until it stops and the pressure goes over relief... and hold for 2 seconds...... do this 2-3 times, then test drive. If needed, repeat until all the trapped air is gone.
Fleet Mechanic
Joined: Aug 2002
Posts: 1,899
Likes: 29
From: Raleigh USA
Actually its better to turn all the way to one direction then shut off the engine until the PS fluid is clear of bubbles. Then repeat going to the right. Going back and forth with the engine running just aerates the fluid more.
New User
Joined: Jul 2018
Posts: 17
Likes: 0
Had the same problem with my 05. wasn't anything wrong with the power steering pump system or rack unit. The truck has an intermediate steering wheel shaft that connects the base of the steering wheel to the steering box. The intermediate shaft has u joints at both ends that are known to rust out. Bought the part from Rock Auto for $100.
Fleet Owner
Joined: Apr 2008
Posts: 24,316
Likes: 5,127
From: 0,0,1
Did you happen to put pressure on any of the steering linkage when you jacked up the truck to chance the starter?
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