Sufficient-Coach9439@alien.topB to Mechanic Advice@gearhead.townEnglish · 10 months ago

Gmc Transmission out at 60k miles.

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Gmc Transmission out at 60k miles.

Sufficient-Coach9439@alien.topB to Mechanic Advice@gearhead.townEnglish · 10 months ago

I’ve got a 2017 limited with 64k miles that just had a transmission totally fail. Has anyone else seen this happen? I’ve averaged less than 10k miles per year and don’t tow anything. Dealership says I am 4k miles outside of powertrain warranty so nothing they can can do.

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10 months ago
I have taken to offering a thermostat delete when doing a trans service on 6L80e. This prevents the trans from overheating, hopefully keeping the torque converter failure at bay.

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