No power steering at slow speeds


#1

My 2004 Outback power steering was growling and squealing, but it was working ok at the time. I decided to replace the power steering pump before it completely failed and 3 hours later I was done. the growling and squealing was gone. However, when I backed the car out it was hard to steer at first. When I got going it all worked great, until I turned at the corner… hard steering again. When I got around the corner and up to speed everything is great again. The problem did not go away with time. Every time I turn at idle there seems to be no power steering. What is going on?


#2

My guess would be that you either did not tighten the drive belt properly or that the belt is slipping. A new pump is harder to turn and replacing the belt will usually fix the problem. I hope you got all the air out of the new pump because that can cause problems as well.


#3

Concur. Sounds like the belt is slipping only when much is asked of it…like.making sharp turns at low speed.

Suspect old or poorly-tensioned belt.


#4

No Check Engine light?

Tester


#5

To purge the sir out of the steering rack, turn the wheel lock-to-lock 3 times.


#6

Some cars have a fluid filter screen on the pump intake inside the reservoir…If they plug up it will starve the pump…Check that first…


#7

The problem might be with the power steering pressure sensor on the power steering pump.

This sensor sends a signal to the computer along with the vehicle speed sensor to determine how much power steering assist is required for the speed that the vehicle traveling.

Tester