Power steering damper

Discussion in 'Gen 3 Prius Technical Discussion' started by abubin, May 3, 2022.

  1. abubin

    abubin Member

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    This power steering damper seems to be a common thing that need to be replaced when the steering starts to make noises.

    However, I cannot find any video or guide on this for Gen 3 Prii.

    Anyone have a guide or video on how to get this replaced? Thanks!


    upload_2022-5-3_18-9-56.png
     
  2. bisco

    bisco cookie crumbler

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    never heard of it before, how many miles on your car?

    can you link one of the common threads?
     
  3. ChapmanF

    ChapmanF Senior Member

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    When I search that part number on parts.toyota.com and then click What This Fits, I only see Gen 4 Prii listed, not Gen 3.
     
  4. abubin

    abubin Member

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    Very strange indeed. I have seen in my Prius community in Malaysia and Thailand, this is a frequent issue that causes steering to have knocking sound. There are lots of users who also said they have changed theirs and workshops have done the work. Didn't occur to me that it is listed not a Prius gen3 part. Need to dig deeper.
     
    ColonPrius and bisco like this.
  5. bisco

    bisco cookie crumbler

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    perhaps n/a cars are built differently
     
  6. ColonPrius

    ColonPrius Junior Member

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    Bisco. Did you ever installed the part? My 2015 is driving me crazy with that rattling. Please report on results.
     
  7. alltherightpills

    alltherightpills Junior Member

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    Just sorted my steering column rattle today. Had to get in there and tighten a couple of 12mm bolts under the steering wheel / pedals. Read up on this thread for details.
     
  8. Angelman99

    Angelman99 Junior Member

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    My 2013 has the dreaded steering column rattle :mad:, have replaced the intermediate shaft one of the universal joints was failing. Can't find a part number for the damper for the Gen 3, hopefully resurrecting this thread and someone has found the information :)
     
  9. Angelman99

    Angelman99 Junior Member

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    Found the part on AliExpress for $10AU delivered.
    Search for Damper Electric Power Steering Motor Shaft 45254-28040 For Toyota Corolla Prius Lexus
    Currently on special for $4 (Note - I have no affiliation with AliExpress).
     
  10. Personality

    Personality Junior Member

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    Good evening. I, too, have steering rattle on Gen 3, 2015 Persona

    185,000 miles

    Replaced intermediate shaft with Toyota OEM, and this fixed a very slight knocking sound when stationary and moving steering wheel back and forth between, say, 11-12 o’clock. Inspection of the old shaft upon removal did not show u joint degradation, and the sliding collar for telescopic function was not visibly worn. The new shaft did tighten up the steering a little, the ever so slight knocking sound went away (which was so slight my wife never heard it, and she hears EVERYTHING), and it seemed the uneven road surface pebbly, under dash noise diminished as well, which is what stated the saga. Now the under dash sound is back, even worse than before. Double checked bolt tightness to splines on intermediate shaft and both tight.

    Watched a couple Youtube videos on replacing the plastic coupler in the power steering motor, and though it looked like a somewhat painful process I was all set to do anything to rid this poor car of its embarrassment in the cabin.

    Called a buddy of mine at the local Toyota parts counter, gave him my VIN, and there isn’t one listed for this car. Darn.

    So today, for probably the fourth time I am beneath the car wiggling, pulling, inspecting every danged front end suspension part because it has to be something there even though my ears, though old, tell me the noise from rough pavement is in the dash. Again, though, even with help, loading the wheels with a spud bar, simulating ride height, turning front wheels lock to lock by gripping the tires, etc there are no worn component(s). Not a ball joint, sway bar link, CV joint, strut, rack end, or anything else. Big shocker for the fourth time, right?

    So I also read about a bearing inside the steering column that can allegedly get noisy. That made sense, but when I’m on the perfect road surface for an extended time to exacerbate the noise, no amount of pulling the steering wheel up, or down to load up a bearing inside there changes the noise even slightly, nor did telescoping and/or tilt angle. Not even a little.

    If y’all are still with me, and I hope you are, I know you feel my pain. This little reliable war wagon doesn’t deserve to sound like this, and my wife, who clearly hears this cacophony, is convinced the car is getting loose and past her prime. It’s not.

    Apparently they sell hundreds of these couplers for Camrys and Ravs, but at 68 years old I don’t have the same exploratory surgery chops that I did when younger, so I am really trying to find someone who has been in their Gen 3 dash, pulled the top cover of that power steering motor and indeed found the dreaded coupler in there. It isn’t like the Japanese built Toyotas to get their parts lists wrong, but man, it seems like that is the only plausible cause at this point.

    I know this was long, and I really do appreciate your patience. If I need to start a new thread I can do so, but this seemed the place to post for this particular problem. Help would be ever so greatly appreciated.

    Ed Fisher
    Ft Worth, Texas
     
  11. Brian1954

    Brian1954 Senior Member

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