Power steering bleeding

Tiny
NASER NASER
  • MEMBER
  • 2003 TOYOTA TUNDRA
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Had a lot of noise and whine from power steering, it was decent while turning not too difficult. Replaced the pump and started the car, turned the steering 7-8 times right and left still have a whine. Only time the whine stops is if I hold the steering at either right or left at lock position.
Thursday, April 9th, 2020 AT 12:52 PM

9 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Noise in the power steering is either air or a faulty pump so I think you are correct with bleeding it.

Here is the process from Toyota. There are other ways but let's just do what they suggest.

Run through this and let me know what happens. Thanks
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Thursday, April 9th, 2020 AT 1:14 PM
Tiny
ASEMASTER6371
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Good afternoon,

That is the way you bleed the power steering pump of air. You need to turn it left and hold it all full turn for about 5 seconds and then turn it right and do the same.

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

Do this procedure at least 3 times to get rid of the air.

Does the steering feel okay?

Did you flush the system of all fluid and add new fluid?

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

Roy
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Thursday, April 9th, 2020 AT 1:17 PM
Tiny
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So there are no possibility of leaks like Honda's do with the power steering hose o-rings? Never had a Tundra before so not sure what is common.
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Thursday, April 9th, 2020 AT 1:19 PM
Tiny
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No didn't flush it, fluid looks good I just added after the replacement.
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Thursday, April 9th, 2020 AT 1:20 PM
Tiny
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I would flush it out of all the old fluid.

Also, the fill tank, there may be a screen on the bottom for the fluid. I would check it an see. If it has debris in it, the fluid will not get to the pump and it will make noise.

No, to the o-ring. If it did, you would have a leak.

Roy
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Thursday, April 9th, 2020 AT 1:22 PM
Tiny
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No screen as this is a plastic reservoir. Removed the fluid from inside it and removed it, cleaned it out as much as I can and out it back, out in more fluid, Bled it more, gotten much better, maybe there was dirt and maybe the fluid is just bad. Added more fluid and the foaming is less now. If noise was at 100% before the whine is about 40% now, am gonna suck the fluid out again and put in some more. What ATF that isn't too expensive I can use? Since most of it gonna go to waste. I will suck it out of reservoir, add more and start it and do it over and over until it is clear.
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Thursday, April 9th, 2020 AT 3:24 PM
Tiny
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Dexron 3 is the fluid to use. Use it for the flush and filling.

Roy
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Thursday, April 9th, 2020 AT 3:27 PM
Tiny
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I have no more foam and the noise is better, but whenever I put in new fluid in the reservoir, start the car, turn the steering 5 times right and left then suck the fluid again it doesn't look that bad. Is it possible it is not moving? But if it Is not moving the steering would have been hard correct?
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Friday, April 10th, 2020 AT 1:07 PM
Tiny
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If it was not moving, you would have no assist at all.

Sounds like you are good.

Roy
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Friday, April 10th, 2020 AT 1:11 PM

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