engine water pump failed to seal?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Chris77*, Mar 17, 2026 at 11:11 PM.

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  1. Tombukt2

    Tombukt2 Senior Member

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    You just keep filling the radiator an ounce at a time top of neck it gurgles down add another 45 min later water will stand at top of neck 5 full minutes without moving a bit . When it does that cap the radiator make sure the jug is full and you ready to ride . Heat on full tilt. You should have heat within 3 minutes and turning down of warm. Out . 10 min later back on park lot . Touch hoses top and bottom should be near same temps etc just still at same level as 10 min ago .
     
    #21 Tombukt2, Mar 19, 2026 at 10:54 AM
  2. Chris77*

    Chris77* Junior Member

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    I think its burped out. I think i should leave the plug alone. I just topped off a tinny bit that it sucked down last night after it cooled off. This job is complete. Even with leprechauns.
     
    #22 Chris77*, Mar 19, 2026 at 11:30 AM
  3. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Just thought I'd check that. FWIW, one of the bolts is 11 lb-ft.
    upload_2026-3-19_9-9-37.png
     
    #23 Mendel Leisk, Mar 19, 2026 at 12:09 PM
  4. pasadena_commut

    pasadena_commut Senior Member

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    For the OP. Go on youtube and look up "eyeonaiman". The kid has two very nice videos about filling and burping the coolant system. Here is one of them:

     
    #24 pasadena_commut, Mar 19, 2026 at 2:19 PM
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