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so long as the avalanche was 2wd, they should work.
not 100% sure on the electrical answers, but it sounds like you've taken the right things into consideration.
most guys just bypass the throttle body heater line.
5 speed manual NV3500, with LQ4 auto V8 harness.
1. Correct me if I'm wrong, but from what I read, the clutch pedal position wire just gets depinned from F10 in the V8 harness and repinned to F11?
2. I will take the VSS connector and Back Up Lamp switch connector off the V6 harness, but are there already wires to butt splice these to in the V8 harness? Or will I need to pin and run wires myself in order for the PCM to see this data?
I have schematics showing the path and wire colors but I assumed these two wires are in the donor auto vehicles trans harness? Am I wrong?
not 100% sure... i ended up sending my harness to CurrentPerformance, where they took all the auto stuff out before i tried installing it.
the only thing they missed was that purple clutch switch wire that's literally a jumper between two harness block pins (can't remember which offhand). just check your v6 harness; i'm pretty sure it's the same spots.
not 100% sure... i ended up sending my harness to CurrentPerformance, where they took all the auto stuff out before i tried installing it.
the only thing they missed was that purple clutch switch wire that's literally a jumper between two harness block pins (can't remember which offhand). just check your v6 harness; i'm pretty sure it's the same spots.
So I answered one of my own questions so far. The VSS are the same color wires and same connector. The VSS on the auto harness is near the big round gray TCM transmission connector. So that one is easy.
Now as for the Backup Lamp Switch and where to hook that connector up into the auto harness, I'm still working on figuring that out. I know the BLS (manual) and PNP (auto) both follow same path in schematics and is Gray wire from PCM and Pink wire from fuse block to either of these switches.
And this clutch jumper thing is yet to be solved... Still hoping someone has graphic details and/or pictures for the Clutch Pedal Position (CPP) to send signal to ECM to engage starter.
What are these plugs for? More so the bottom 2 pin connector. It has a blue and green wire and was in the V6 harness but not the V8 harness.
The Lower plug with 2 pins is for an Electric fan option for the radiator. This started in 2005. Its wired to the PCM and can removed from the V6 harness and added to the older V8 harness of you plan on adding E-fans
The Upper plug looks like a 3 pin plug, not sure what that's for.
01-20-2020, 08:02 PM
