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But aren't 3l80s supposed to have locking torque converters? I don't see how the clutch would be controlled, but I've heard they have them.

So if theres a second connector where would it lead to? The injection pump? I thought all 3l80s had lock up torque converters? And the TH400s were the ones with the lock up feature? I'll have to see if theres a second tab on mine.

Well I've been driving with the wire disconnected from my 3l80 and haven't noticed anything different.

Why then is there a wire coming from the engine harness to the transmission. There's a tab connector on the side of the 3l80 which connected up to the engine harness...

Another one of am generals mislabeled harness's? I have my fan timer disconnected so my fan is on all the time. Does this affect how the kick down solenoid works?

Come to think of it, I think I've only ever had the transmission downshift once, and it didn't do much anyway. Most of the time I control the downshifting. Never saw the need in a humvee since climbing a hill steep enough and at a slow enough speed (to allow a downshift) doesn't really help...

The name is pretty straight forward, but what happens when its disconnected...? I'm asking because I want to install an A2 engine harness before I have the 4l80 in. The main difference between the A2 and A1/A0 harness is the trans kick down solenoid. So if it were disconnected would the 3l80...