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Thread: Cvt failure at 223000kms / 138k miles (courier car, 2nd CVT failure in the fleet)

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    Senior Member Fummins's Avatar
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    Cvt failure at 223000kms / 138k miles (courier car, 2nd CVT failure in the fleet)

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    I'll bet the same problem as the other car:

    Thread: CVT Failure (at 304,000 km / 189k miles, delivery vehicle)


    I'll be tearing it apart once it's out. No engine lights on at all.


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    Senior Member Fummins's Avatar
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    This car threw a trouble code p0876(trans fluid pressure sensor) last august when it had 196000kms. I changed the fluid back then, and again earlier this month. I haven't had any trouble til today. I guess it gave no warning and just crapped out. Looking at the oil pan on this and the pics of the other one I had that failed, they look exactly the same. I sure hope this isn't a sign of things to come....
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    Was it driven hard?

    If my CVT goes to 223,000km, I'll be happy. At my current rate of driving, my car's CVT should then last 60 more years!

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    Fummins: Since you’ve had a couple of these apart and are now doing filter changes along with fluid changes is it possible to change the upper cartridge filter without draining the pan? I understand there’s no way to avoid that with the pan filter but was curious if it was possible with the upper one.

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        click to view fuel log View my fuel log 2015 Mirage ES 1.2 automatic: 40.5 mpg (US) ... 17.2 km/L ... 5.8 L/100 km ... 48.6 mpg (Imp)


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    Senior Member Fummins's Avatar
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    Quote Originally Posted by inuvik View Post
    Fummins: Since you’ve had a couple of these apart and are now doing filter changes along with fluid changes is it possible to change the upper cartridge filter without draining the pan? I understand there’s no way to avoid that with the pan filter but was curious if it was possible with the upper one.
    Definitely. The cartridge filter is about 6" above the bottom of the oil pan so you won't lose much fluid when you remove it. I've never tried to access it from the top, might be impossible. It's not hard from below, might be easy through the wheel well with the tire turned?
    As far as if it was driven hard, I highly doubt it. The cars here are gps'd and any kind of aggressive driving (hard acceleration,braking,top speed etc) is reported.

    On further inspection of the chunks o' metal I found a bunch of small rollers. Possibly from a thrust washer?
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    Any noticeable smoking gun?
    Custom Mirage products: Cruise control kit, Glove box light, MAF sensor housing, Rear sway bar, Upper grill block

    Current project: DIY Nitrous oxide setup for ~$100

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        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 45.4 mpg (US) ... 19.3 km/L ... 5.2 L/100 km ... 54.6 mpg (Imp)


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    Exact same problem as the first one. It looks like a thrust washer failed. The pics in my post #8 Show the input shaft and housing. #9 shows what was in between the 2 parts. I expect to see another failure around the same mileage unfortunately. It needs a new input shaft and housing, bearing. Then probably a valvebody and torque converter since they are probably contaminated.

    I might start pulling the cvt's out of cars and replacing that bearing/washer before they fail. Rather replace a part before it fails and you need an entire cvt. Damnit...


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