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and hoping for the additive to work long-term

The additive wont last. It needs to be replaced from time to time when symptoms return. It also doesn't fix the problem, just the shudder. I am not a...

Wise words that in the end I’ll probably follow. My search for information was driven by a Loss of trust with what is supposed to be the premiere rebuilder in the area. This thread has been very...

Just an update on the transmission. Lab report came back normal. Less than 1/2 percent solids in both samples. I'm not sure what I'm going to do with that information. But at least I know.

I'd...

That makes sense. The torque converter design Deficiency is that both friction surfaces are angled and the cover (made from pressed steel) flexes during lock up causing the friction surfaces to not...

This is really turning into more of a mechanical issue and outside of the scope of this forum. But to try to close things out I'll add the following. I really didn't see carnage. I saw dark(ish)...

Before I posted my first question I was inclined to purchase the software/hardware for the reasons stated above. When I say this may turn into a purely mechanical issue is dependent on what I learn...

Above I asked “ Does the Scan Tool/Software measures how much slip is occurring”. After thinking about it a bit more I think the computer could actually measure the slip as it happens. The engine...

GM indicates the normal operating range for a 6L80 transmission (without thermostat) is 180-200 degrees.

I wont be able to help with your tune, but I've been monitoring transmission temperatures...

This is what I suspect is happening and the reason for my question. I'm trying to determine if I need to replace the torque converter now.

This may turn into a purely mechanical question and not...

Well Thank you 5FDP,

I just spent the last hour on a video on how a torque converter works. I'm trying to understand better. I'll read the article you referenced when I get home tonight.
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NOTE: I'll try this again. Apparently I didn't follow the instruction quite close enough after I registered yesterday and my original post never appeared on the forum. Note to self, read the...