P0016 after head gasket replacement

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by robbiebags, Sep 25, 2025 at 10:43 PM.

  1. ChapmanF

    ChapmanF Senior Member

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    I also HATE their 'shorts' viewer for the same reason.

    Anything somebody happens to post as a 'shorts' link, you can still watch as a 'watch' link, just by fixing the URL.

    In the above, gYQoZdw-Au4 is the video ID. So if you just change the URL to

    https://youtube.com/watch?v=gYQoZdw-Au4

    then boom, you have a decent 'watch' link for the same video.
     
  2. ASRDogman

    ASRDogman Senior Member

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    That's Great! Wasn't that easy!???!! :eek::rolleyes:o_O:whistle::whistle::whistle::whistle:

    I say that from a distance, with caution!!!!
    It's nice that it's all working isn't it? And it feels good!

    I hope that you get at least as many miles out of the new head gasket as your did the OEM one.

    Did you check the valve seats while the head was off? To see if they leaked?
    It's laying the head flat and spraying wd40 in each valve, or other light oil.
    Waiting 10-15 minutes, lifting the head carefully, and seeing if any of the oil had seeped through.

    I had one of the #4 exhaust valves seep a tiny bit after 30 minutes. So I seated them all in, along with
    new valve guide seals.