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Noisy valve

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mgb922, May 3, 2013.

  1. mgb922

    mgb922 Junior Member

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    My 07 has a noisy tappet when it's cold and when I put a load on her. I understand the valve adjustments is a royal PITA. Anyone with expeience with this?
     
    #1 mgb922, May 3, 2013
  2. jadziasman

    jadziasman Prius owner emeritus

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    When it's cold - do you mean the engine or the outside temperature?

    How many miles are on the car?

    My '05 with 196K miles had what might have been a noisy valve or three . I just started using Pennzoil Ultra 5W30 and noticed that the valve noise I was hearing disappeared. You might want to try it or Pennzoil Platinum if you can't find Ultra which is more difficult to find now that Walmart discontinued it.
     
    #2 jadziasman, May 3, 2013
  3. Dino33ca

    Dino33ca Member

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    #3 Dino33ca, May 4, 2013
  4. alexeft

    alexeft Member

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    Are you absolutely sure it is a noisy valve? A noise could be any number of things.

    Anyway, just measuring the valve lash is not such a hard job. Adjusting them by replacing lifters IS a royal PITA as the camshafts have to be removed.
    It is doable though. I did it myself on my own Prius.
     
    #4 alexeft, May 10, 2013
  5. jadziasman

    jadziasman Prius owner emeritus

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    Removing the valve cover is not a quick and easy job. I wouldn't recommend doing it to anyone who would only want to measure the valve clearance and not adjust it. It's not the piece of cake you make it out to be.
     
    #5 jadziasman, May 10, 2013
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