Power steering not working properly

Tiny
JESSRNELSON
  • MEMBER
  • 2002 FORD THUNDERBIRD
  • 3.9L
  • V8
  • 2WD
  • AUTOMATIC
  • 30,000 MILES
When the car is moving slow the power steering is very hard to steer but at speed it works fine. This car has a pressure switch on the power steering pump and a power steering control valve actuator.
Saturday, March 26th, 2022 AT 6:55 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

When the vehicle is moving faster, the steering by nature is easier to turn, so I'm wondering if the problem still exists but becomes less noticeable.

When you are stopped, do you have any assist whatsoever? Is the power steering belt in good condition and tight? Is the fluid full and clean? Is there a whining sound from the power steering pump?

Let me know as much as you can. Also, let me know if anyone has added fluid that may have resulted in the condition and what it was.

If the fluid is dirty, you may want to consider flushing it to see if that is at all helpful. Here is a link that shows how it is done:

https://www.2carpros.com/articles/power-steering-fluid-flush

Take care,

Joe
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Saturday, March 26th, 2022 AT 5:31 PM
Tiny
JESSRNELSON
  • MEMBER
  • 4 POSTS
It does whine when moving slowly like for example backing up and turning around. When I got the car at 21,000 miles, the power steering did not work. I put in a new power steering pump. The car has 30,000 miles now. I am having a hard time believing the pump is gone again. It never went dry during this time.
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Sunday, March 27th, 2022 AT 6:45 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

I totally agree with you. It shouldn't be bad already. Was the replacement pump new or remanufactured? Also, have you tried servicing it? Does it act the same way as it did with the original pump?

Let me know.

Joe
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Sunday, March 27th, 2022 AT 2:09 PM
Tiny
JESSRNELSON
  • MEMBER
  • 4 POSTS
When I got the car, the pump didn't work at all. The replacement is an aftermarket rebuilt unit. And it worked fine for 9,000 miles. Pump doesn't make noise unless you're trying to steer at very low speed. I tried putting it in neutral and revving motor up, but it makes no difference.
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Monday, March 28th, 2022 AT 11:39 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
By chance, does the fluid indicate the system may be dirty? If you are getting a whine from the pump, either it is working harder than it should or the pump is going bad.

Keep in mind, when you are moving, the assistance from the pump is lessened. Therefore, you have a much better chance it won't make noise.

I suspect the new pump is failing. Also, if there is excessive dirt in the fluid, I would flush the system prior to replacing the pump. Otherwise, the same thing will likely happen again.

By chance, is the pump still under warranty? Often times they come with a lifetime warranty.

Let me know.

Joe
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Monday, March 28th, 2022 AT 6:13 PM

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