Going overboard?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by benwray1, Jun 28, 2025 at 3:14 PM.

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  1. Mendel Leisk

    Mendel Leisk Senior Member

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    #21 Mendel Leisk, Jul 1, 2025 at 11:10 AM
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  2. adrtho4

    adrtho4 Junior Member

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    Nuts about Bolts videos and Gasket Masters for your generation prius. That's what I followed. Make sure you torque things properly, consult the repair manual for the specs. Take the time to quadruple check that all the connections are secured and there is nothing unplugged.
     
    #22 adrtho4, Jul 1, 2025 at 11:26 AM
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  3. benwray1

    benwray1 Junior Member

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    Update 7/1/25

    I realized I had lost a hose, and found it, dropped in front of the radiator, thankfully! I looked at several videos to compare the purge valve placement, etc. The only thing that I can't figure out is this 8-inch electrical connector, on the passenger side, down by the water pump. It's plugged in on one end, but not the other. I'm not sure where it goes. Any tips? It's like an adapter from one harness to another.

    Also, my check hybrid system is on, but I think it's because I ran the 12V battery down. I have it on a battery charger right now. Any tips on this are appreciated as well. I am truly thankful for all of the advice.
     
    #23 benwray1, Jul 2, 2025 at 12:27 AM
  4. benwray1

    benwray1 Junior Member

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    Update: I figured out where everything went. Now, I have a Check Hybrid System message after I got it all back together. So I'm charging the 12V battery overnight.
     
    #24 benwray1, Jul 2, 2025 at 3:06 AM
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  5. Brian1954

    Brian1954 Senior Member

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    What trouble codes do you have?
     
    #25 Brian1954, Jul 2, 2025 at 9:21 AM
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  6. adrtho4

    adrtho4 Junior Member

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    Did you disconnect the inverter cables? I did and I got the same "Check Hybrid System" message. What I did to resolve it was ensure all cables were seated and tightened properly. Even that one cable to the side. What also helped was a blue tooth obd2 scanner and the Dr Prius app, but Autel AP2000 has been recommended here.

    You can use something like that to get an estimate of your hybrid battery life as well as your 12v battery.
     
    #26 adrtho4, Jul 2, 2025 at 9:24 AM
  7. NutzAboutBolts

    NutzAboutBolts Senior Member

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    what did you do to the vehicle?
     
    #27 NutzAboutBolts, Jul 2, 2025 at 4:16 PM
  8. ASRDogman

    ASRDogman Senior Member

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    You're going to have to clear that code, it won't go away on its own.
    I "think" if you disconnect the 12v battery, (while you charge it) for an hour or so it will clear
    all the codes.

     
    #28 ASRDogman, Jul 2, 2025 at 5:20 PM
  9. NutzAboutBolts

    NutzAboutBolts Senior Member

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    funny thing is, I finished the headgasket replacement, plugged back in the service port and 12v cable. No check engine light, I didn’t have to clear the code :D
     
    #29 NutzAboutBolts, Jul 2, 2025 at 6:05 PM
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  10. ASRDogman

    ASRDogman Senior Member

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    Nothing funny about that. You just got everything connected correctly, and the first time! :)

     
    #30 ASRDogman, Jul 2, 2025 at 6:23 PM
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  11. NutzAboutBolts

    NutzAboutBolts Senior Member

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    I kept all the nuts and bolts organized, so it was just remove and install it in place (y)
     
    #31 NutzAboutBolts, Jul 2, 2025 at 8:25 PM
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