Timing Chain Tensioner "O" Ring Under Warranty?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Xterra72, Mar 4, 2016.

  1. working1

    working1 Active Member

    Joined:
    Apr 1, 2013
    118
    103
    0
    Vehicle:
    2012 Prius
    Model:
    Two
    Good info and thanks for posting. I suspect this is a common issue on Gen3's that most never find since it physically is tough to see. I have a minor leak in this area, but, way past any warranty. For those that are close to their warranty expiring, this is a must get inspected area before it does.
     
    #41 working1, Mar 15, 2016
    Last edited: Mar 15, 2016
    Xterra72 likes this.
  2. The Critic

    The Critic Resident Critic

    Joined:
    Oct 28, 2005
    3,141
    2,249
    0
    Location:
    CA
    Vehicle:
    2011 Prius
    Model:
    Three
    That is one of the better written receipts that I have seen. Based on his description, it sounds like the job was done correctly and all applicable o-rings and gaskets were replaced. The repair manual wants you to pull the engine for the repair, but its definitely do-able with the engine in the car.

    I re-checked my car tonight and only found a small film of oil on the underside of my timing chain tensioner. So, I set the engine to TDC and removed the chain tensioner. The chain tensioner gasket is actually a metal gasket with a rubber coating. My old gasket was felt a lot "harder" than the new one, but I cannot say with certainty that it had truly failed.

    I then reset-ed the tensioner, install the new gasket and reinstalled the nuts. I turned the crank counter-clock-wise slightly to tighten the chain, but that did not release the plunger. So I turned the crank clock-wise by about 90-deg and I heard a very faint click. Once that was heard, I used my Snap-on scanner and put the engine into inspection mode, then started the car and verified operation. Everything worked out.

    If you're planning to do this job, the easiest way to reach the tensioner is from the pass/front wheel well. I would remove the splash guard and reach in. There is no need to remove the cowl or even the underbody cover. The top nut needs a deep 10mm and the bottom nut needs a short 10mm combo wrench.
     
    Xterra72 and m.wynn like this.
  3. craig glaspell

    craig glaspell Junior Member

    Joined:
    Nov 2, 2013
    9
    1
    0
    Vehicle:
    2012 Prius
    Model:
    II
    Do we know what retail/non warranty pricing is on this repair, with the info you provided? My dealer just told me $2k to fix this! I am at 76k miles, 5 yrs and 3 months of ownership. So pissed.
     
  4. Mendel Leisk

    Mendel Leisk Sand Pounder

    Joined:
    Oct 17, 2010
    45,961
    32,820
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Yeah just out of warranty. Any possibility of good will? Consider my comments in your other thread posting: the big question:

    Yes, dealer told you how much to fix, but get his opinion, and maybe an independent second opinion, and take a look at it for yourself, to determine: how necessary is it to jump on it? And keep in mind, it's an awkward tricky job. The form-in-place gasket application and the cover was installed at the factory before the engine was installed. It's debatable if they can do better now, without pulling the engine.
     
  5. Skyler

    Skyler New Member

    Joined:
    Jun 10, 2019
    2
    0
    0
    Location:
    40324
    Vehicle:
    2014 Prius
    Model:
    Three
    Did replacing the tensioner gasket fix the leak? I have two 2014 Prius is leaking in this exact spot.
     
  6. The Critic

    The Critic Resident Critic

    Joined:
    Oct 28, 2005
    3,141
    2,249
    0
    Location:
    CA
    Vehicle:
    2011 Prius
    Model:
    Three
    I thought it did, but the seep eventually came back. I think it is a combination of the timing cover and the oil pressure switch which are both seeping.
     
  7. johnHRP

    johnHRP Junior Member

    Joined:
    Aug 6, 2014
    91
    20
    0
    Location:
    tally, fl
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    How do you set the engine to top dead center if there is no pulley outside the engine like in Corolla? How do you turn the crankshaft? Can you turn it from the top of the engine after removing the valve cover?
     
  8. The Critic

    The Critic Resident Critic

    Joined:
    Oct 28, 2005
    3,141
    2,249
    0
    Location:
    CA
    Vehicle:
    2011 Prius
    Model:
    Three
    There is a crankshaft pulley.
     
  9. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    95,253
    43,192
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    has anyone determied how necessary this repair is? if the oil level isn't visibly changing, is it worth 2k to repair?
     
Loading...