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  1. engineman
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    2013 Prius (240k) - P148F, P0301, P0302

    Thanks for the help. Shortly after I posted it started having rough starts after sitting overnight which was enough for me to confirm blown head...
    Post by: engineman, Jul 14, 2026 in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  2. engineman
    Post

    2013 Prius (240k) - P148F, P0301, P0302

    Thanks for the input. What test do you recommend to confirm the diagnosis of failed head gasket?
    Post by: engineman, Jul 3, 2026 in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  3. engineman
    Post

    2013 Prius (240k) - P148F, P0301, P0302

    Thanks Bryan 1954. I tested the combustion gas on the coolant reservoir last night and didn't get any color change. That was at idle with the...
    Post by: engineman, Jun 30, 2026 in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  4. engineman
    Thread

    2013 Prius (240k) - P148F, P0301, P0302

    Hi everyone, looking for some expert opinions on a 2013 Prius Two I just bought used two months ago. It has ~240,000 miles and what appears to be...
    Thread by: engineman, Jun 29, 2026, 7 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
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