I’ve started drilling the holes that are spec’d for the valve body. Only one of them didn’t seem right, but I double-triple checked the location..it’s where they want it to be.
Unlike the same modifications I made to the 4r70w, where the instructions detailed how to wire in the necessary toggles for 4th gear, and converter lock up, A 4l80e will manually shift through 4 gears, and only the converter needs the toggle to lock it up.
The problem is.....Unlike the ones that came with the 4rkit, there are no instructions included detailing how to wire that on the 4l80 version.
So I called them last week.
I don’t know if any of you have spoken to any of the guys at transgo, but these guys are all about 100 years old. Last week, I got ahold of the trans Yoda that runs the place. He tells me something about the Lock up solenoid being PWM, and that you had to add a resistor of some “unknown value” “maybe” in parallel ( I don’t remember what he told me) to condition the incoming voltage so you won’t burn the solenoid up when forcing it to stay on.
I told him I wasn’t ready for that step at that time, and asked if it would be ok if I called him when I actually had the trans open.
He said that’d be fine.
And now, one week later, I’m there.
So I call them..Turns out ol trans Yoda has had a heart attack. * Yoda voice ( Unfortunate he was, get well he must).
I get some Duke Transwalker instead. Annnddd as luck would have it, isn’t automatically familiar with all of the tweaks and jinkies required to make certain things do certain sht.
He has to look at his notes....he has to to cipher and compute...he gets out his book, he gets out his scientific calculator. “ Oh yeah! You’ll need to install a 1/2 watt 15 ohm resistor wired in series, doesn’t matter which leg, and that’ll condition the incoming signal enough so it won’t burn up the solenoid.”
“ In series? I thought old dude told me in parallel”.
“ Nope, in series”.
“ And it doesn’t matter whether I’m applying 12v or a gnd signal to that line that has the resistor on it?”
“Nope.”
“ Cause the way it’s wired now for the 4r70, I’m switching it to ground.”
“Don’t matter”.
So this leaves me conflicted. The One thing I do NOT want to have to do is drain that damn trans to replace a burned up lock up solenoid after I get that big bitch up in there..
I’m sure one of you electro-geniuses can tell me if Duke Transwalker is steering me down a a path to the dark side....
@a91what,
@jrichker ?