AGearHead4Life

iTrader: (5)

I had a 2000 5.3 ECU and didnt have to do that. Contact Lane at fastlane52@yahoo.com. I'll bet that you could mail your ecu to him and he could take care of it. He did mine.

nichoms

iTrader: (1)

Well I already own HP Tuners Pro and they said they would do the segment swap for me if I had the new OS put on. I just didnt know if there was another way to put the new OS on or if everyone else had to do the same thing.

That is interesting that you didnt have to though.. wonder if the 2000 OS was the most recent.

nichoms

iTrader: (1)

Well I looked up my VIN on http://tis2web.service.gm.com/tis2web and it shows me that there is an upgrade for my PCM to the 9381344 OS.

It shows that this would upgrade to the "model year 2000 level" so that makes sense that your 2000 didn't need the update and my 99 does.

Has everyone else with a 99 PCM had to do this update before segment swap?

383camaroz28

iTrader: (22)

So i did the relay mod, put 100 miles on the trans. Shifts fine drives fine, now i get p1870 code. Is my transtrash now? How do i go about this?

willizm

iTrader: (10)

Not sure about the 99pcm limitation, but for what it's worth I had HPTuners bin swap my file and I also got the speartech harness. It worked a-ok so far using the latest version of HPT. I didn't have access to the tables under transmission until I upgraded. All is fine now. Put about 1000 miles on it and the car shifts fine and the converter locks up and unlocks properly.

Isolde

iTrader: (4)

I'm not saying you're wrong, but I can't understand that. I wasn't happy until I had lockup down to 29 MPH in OD, and when I'm driving in heavy interstate traffic I manually shift down in advance of needing responsiveness. Right now my '06 GMC 1500 doesn't lock until 37 MPH, and my next tune will change that to 34. My Camaro doesn't lock until 45, and I'm about ready to take a sledgehammer to it!

White.Lightning

iTrader: (53)

Have any of you guys installed a 4L80e, did this mod, and opted for a non-lockup converter?

Stumped1215

iTrader: (9)

Is it normal for the trans to feel like its slipping using the relay before the codes are disabled? It shifts fine driving under normal conditions but as soon as you give it some throttle the rpm goes up very slowly and the car does not accelerate. I dont have hp tuners and I want to make sure the trans isn't junk before I take it to my tuner.

F68

Hi draggin this thread up again,
my 2000 silveraddo has a 4.3, and a junk 4l60e, I got another GM goodwrench replacement one that looked fairly new from a boneyard, but pulling the pan revealed the death grit.


anyhow I had my thrill with these POS 4l60e's (the rebuilders LOVE THEM)


I also got a 98 savanna -ex Penske truck being cannibalized out back,
with a 4l80e, so I decided im using it in the 2000 Silverado.
the express vans /savannas used the 4l80e and 4.3 in 97 and also in 2001-3.
and the stall speed converter I think is 2800, (im concerned the TC suppliers will just sell me a v8 one though - because they are as like the rebuilders,they don't want us doin it ourselves.. the 4.3 needs higher stall, anyhow would you recommend the low speed lockup disengage with a smaller 4.3?

F68

YIKES,,,, please -anyone , I just discovered my 2000 4.3 Silverado has the same black box that the 98 im pulling the 4l80e out of to swap in ......... how does this affect the wiring switcheroo for the 4l80e swap..








do I have a different pinout for the VSS pigtail I was going to snag from the old 98harness?
and what about the two wire swap in the round plug--eliminating the white one?


any info would be greatly appreciated.

Shannon L Haynes

Still giving info for segment swap not being needed? Would be greatly appreciated. I already swapped wires etc etc.

JoeNova

I had this info somewhere, and now I can't find it.
His last login was 8 months ago. I doubt getting ahold of him is going to be easy.

joecar

Off the top of my head:
- use a relay to invert the sense of 2-3 shift solenoid signal,
- use TCC ON/OFF to drive TCC PWM,
- discard the 3-2 control signal,
- disable a few DTC's relating to the above (if you use pull up resistors in the right places, you may be able to leave the DTC's enabled; you may have to disable P1870).
- set the gear ratios and edit the shift tables.

It easier if you have vehicle wiring diagrams (e.g. F-car/4L60E and Truck/4L80E) to compare, and the apply charts and TCC descriptions from the 4l60E and 4L80E Tech Guides (which can be found on the www).

JoeNova

Just did this swap.
Relay to invert 2-3 signal, OK.
use TCC ON/OFF to drive TCC PWM. OK.
discard the 3-2 control signal, OK.
disable a few DTC's relating to the above, OK.

I'm hearing that you have to move some wires inside of the trans connector.
I did this on my full 60e to 80e swap a couple of years ago, but wasn't sure if it was necessary when running the 80e on the 60e segment. This is a pretty big downer considering that the trans is in and the trans connector is so tight against the floor with the wiring pulled tight that I have to drop the trans to get to it.

JoeNova

And what about the ISS for the 80e? I take it that its not used at all?

joecar

There is no need to move any wires inside the trans or on the trans-side of the connector.
All the changes are done in the harness between the PCM and the trans.

joecar

4L60E segment does not support ISS input.
You may have to disable the ISS DTC's.

white_knight

So, I have a 2002 (2000 pcm) Sierra swapping to a 4l80e. I am having harness made with the pins swapped already. What else do I need to do to be able to daily it if i am not doing the segment swap?

Stack bundles

is it possible for you to send me the files that i either need to add/delete from my pcm. I have a 1999 5.7 stroked running with 2000 4l80. Or possible to send me a tune I can use. It's a 2000 c3500 dually with 4:10 gears and 24.5" alcoa. The block is a 350 vortex bored 60 over with a comp cam hyd .488 hyd .495 IIntake 212 exhaust 218 @ .050 lobe. Lobe lift.3250 .3300 with everything roller. Truck an motor has been sitting 5yrs for build st final stage an truck wont budge. I'd really appreciate it

Stack bundles

Good morning. is it possible for you to send me the files that i either need to add/delete from my pcm. I have a 1999 5.7 stroked running with 2000 4l80. Or possible to send me a tune I can use. It's a 2000 c3500 dually with 4:10 gears and 24.5" alcoa. The block is a 350 vortex bored 60 over with a comp cam hyd .488 hyd .495 IIntake 212 exhaust 218 @ .050 lobe. Lobe lift.3250 .3300 with everything roller. Truck an motor has been sitting 5yrs for build st final stage an truck wont budge. I'd really appreciate it. I dont know if motor info was necessary