Lil Timmy Shy
TYF Newbie
- Joined
- Aug 6, 2024
- Posts
- 18
- Reaction score
- 18
Howdy, Boys: I recently got a 2014 with 31,000 miles and bought a Superior thermostat bypass kit to lower the transmission temp, which I heard was a GM attempt to increase mileage at the expense of slow-cooking the transmission. Anyway, I went to get the kit installed at my local transmission shop (I'm too old to get under a vehicle) and they handed the kit back to me and told me my vehicle did not have the thermostat set-up in my cooling lines. They also told me I was fortunate that I did not have the thermostat; that my transmission might actually last a while.
Next, I was at my local repair shop getting an oil change and the service manager, whom I know, told me I may "dodge a bullet" if my 2014 was "early enough"; that the really frequent transmission failures happened mid-2014 and newer. (My vehicle was built 09/13.)
Finally, in the last month I have met two different Tahoe owners - one of which said he has 187,000 miles on his 2012 Tahoe with no transmission failures, nor modifications, and the other has a 2011 with 211,000 miles and no transmission issues, or mods.
Question: Is there something to this - that earlier pre-thermostat 6L80 units typically last longer than later 2014 and newer transmissions with the thermostat? Thanks. I enjoy this website.
Next, I was at my local repair shop getting an oil change and the service manager, whom I know, told me I may "dodge a bullet" if my 2014 was "early enough"; that the really frequent transmission failures happened mid-2014 and newer. (My vehicle was built 09/13.)
Finally, in the last month I have met two different Tahoe owners - one of which said he has 187,000 miles on his 2012 Tahoe with no transmission failures, nor modifications, and the other has a 2011 with 211,000 miles and no transmission issues, or mods.
Question: Is there something to this - that earlier pre-thermostat 6L80 units typically last longer than later 2014 and newer transmissions with the thermostat? Thanks. I enjoy this website.