Black rectangular plate on transmission

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by amjohnson, Mar 18, 2021.

  1. amjohnson

    amjohnson Junior Member

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    Hello everyone I am wondering if you can tell me what the black rectangular plate that is on the side of what I believe is the transmission on a 2008 Toyota Prius right above the rear motor mount.
    Thanks

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  2. SFO

    SFO Senior Member

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    Pictures always help, but my WAG would be the opening for a starter.

    Does it look like it would align with the flywheel?
     
  3. TMR-JWAP

    TMR-JWAP Senior Member

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    #3 TMR-JWAP, Mar 18, 2021
    Last edited: Mar 18, 2021
  4. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    [​IMG]

    Here is a picture of a Gen 2 Prius Engine/Transaxle, can you point out what you mean?



    From 1:25:35 to about 1:30:35 he shows electrical connections below the rectangle above with the Orange wires near it. (This is a Gen 1, but Gen 2 is similar)
     
  5. amjohnson

    amjohnson Junior Member

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  6. ChapmanF

    ChapmanF Senior Member

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    Little access hole into the bell housing. If you pop it out, you'll just be looking at the flywheel.

    Sort of traditional, I remember similar holes on cars I had years and years ago. If the transmission was an auto, you might need to work through it to reach the torque converter bolts. Not much use for it with a manual.

    Also not much use with a Prius, but reportedly if you've been having misfire rattles for long enough, you can reach in there and down and see if you can scoop out any pieces of the damper springs.
     
  7. amjohnson

    amjohnson Junior Member

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    I have been having a horrible growling noise from that area I believe. It goes away after a while at highway speeds but if I hit a a large bump like train tracks or go through water the growling comes back.... I thought that maybe it was possible coming from under the cover.

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  8. ChapmanF

    ChapmanF Senior Member

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    Really you won't see anything through there but the back of the flywheel. It doesn't growl, unless you move suddenly and it doesn't know you.
     
  9. amjohnson

    amjohnson Junior Member

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    Do you think the transaxle is going bad or cv axle I am at a lose 242000 miles

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  10. ChapmanF

    ChapmanF Senior Member

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    Sometimes posting a recording is helpful. (Especially if you listen to it yourself first, or have a friend listen, make sure it is audible and make sure somebody else can tell what sound in it is the sound you mean. You'd be surprised how many people post recordings without checking that.)

    You'd be surprised how often really horrible growling noises can turn out to be really simple things, especially if they come and go like that, things like loose heat shields or exhaust bits that make contact with the body.

    But a recording ....
     
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