Need to wire up the TCC to the ECM.
Being that the truck was Thread: and r4 TCC wiring This is the diagram for what I need. Here is a diagram from TCI I believe: Here is a diagram and a picture (several pics collaged together)of what found when I dropped my trans. I am in the process of wiring up my Torque Converter on my 87 IROC Camaro.
the transmission I have 3 wires that go to the TCC on the transmission. The way I'd read that diagram is that the 4th gear switch is an input to. Here's the TCI internal wiring diagram for reference.
The vacuum switch in the " TCC Automatic Lockup" wiring ensures that the TCC unlocks. Here's the TCI internal wiring diagram for reference. The vacuum switch in the " TCC Automatic Lockup" wiring ensures that the TCC unlocks.Feb 10, · here is more, this is the cluster connector and its connections and more explanations: the numbers on the diagram correspond to what is on the connector itself, see the below pic.
the wire colors, again, are what are actually in my truck, 2 were different from the schematic, number 11 is brwn/wht, the schematic just says plain brown, and 5 is wht/grn, schematic just says dark green. This Tech Section has grown rather long and takes too much time to load. So, it was split into TWO PAGES, each page with the same index.
Some content CAN be on the OTHER page and you will be directed back and forth transparently, as required. The brake cancel switch unlocks the TCC when the brakes are applied.
Trucks that came stock with R4 trannys came with a low-vacuum switch and a brake cancel switch. The stock low-vac switch didn't let the TCC unlock soon enough with this mod.
Aug 11, · bad torque converter symptoms Problem Diagnosis Car Forums. Chevy tried to bring the curves back in the C5s and C6s but will strike gold if they bring the concept car above to fruition. And yes I’ve read all the forums about how horrid this car looks but I like it!Transmission: R4 "one wire" convertor lock-up (understanding)R4 LockUp wiring diagram - Hot Rod Forum : Hotrodders Bulletin Board