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What to check with OBD2.

Discussion in 'Gen 2 Prius Main Forum' started by Tim bowdoin, Aug 30, 2024 at 12:25 AM.

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  1. MAX2

    MAX2 Member

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    Instrumental?

    I don't know.

    Unscrew the trough with the wiper motor, unscrew the spark plugs and look at the condition of the cylinders. Visually!
    On the Prius GEN2, the engine often eats oil, but not coolant.
     
    #21 MAX2, Aug 30, 2024 at 3:14 AM
  2. Tim bowdoin

    Tim bowdoin Junior Member

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    I understand. One last question. I've got an engine combustion test kit that checks blown head gaskets. Is there any way I can use it.
     
    #22 Tim bowdoin, Aug 30, 2024 at 3:20 AM
  3. Tim bowdoin

    Tim bowdoin Junior Member

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    Is there any way to hook it up directly to the radiator filler cap
     
    #23 Tim bowdoin, Aug 30, 2024 at 3:21 AM
  4. Tim bowdoin

    Tim bowdoin Junior Member

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    Or is there just the reservoir
     
    #24 Tim bowdoin, Aug 30, 2024 at 3:23 AM
  5. MAX2

    MAX2 Member

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    I have not used such devices, so I can not reliably say about this possibility.
    The cooling system has many components. Engine, radiator, heater in the cabin, thermos for keeping hot coolant, pumps, taps, hoses. Where to connect the device?
     
    #25 MAX2, Aug 30, 2024 at 3:45 AM
  6. Tim bowdoin

    Tim bowdoin Junior Member

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    The device hooks up to a regular cars radiator cap. It's checks for a blown head gasket. I think it detects for fuel in the coolant system. But I know it will tell if the gasket is blown.
     
    #26 Tim bowdoin, Aug 30, 2024 at 4:03 AM
  7. MAX2

    MAX2 Member

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    [​IMG]
     
    #27 MAX2, Aug 30, 2024 at 4:07 AM
  8. Tim bowdoin

    Tim bowdoin Junior Member

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    Thank you very much for the pic. Do I have to take anything off to get to the radiator cap. And I really appreciate your time.
     
    #28 Tim bowdoin, Aug 30, 2024 at 4:14 AM
  9. MAX2

    MAX2 Member

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    The top is secured with several clips.

    [​IMG]
     
    #29 MAX2, Aug 30, 2024 at 4:23 AM
  10. Tim bowdoin

    Tim bowdoin Junior Member

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    Can you pop them open or do you have to have a special tool. A screwdriver maybe.
     
    #30 Tim bowdoin, Aug 30, 2024 at 4:53 AM
  11. MAX2

    MAX2 Member

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    Yes, you can
     
    #31 MAX2, Aug 30, 2024 at 5:01 AM
  12. Tim bowdoin

    Tim bowdoin Junior Member

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    I really appreciate your help and I hope you have a great morning.
     
    #32 Tim bowdoin, Aug 30, 2024 at 5:19 AM
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