1986 Camaro LG4 5.0L Carb

Location: Passenger side near firewall by the heater core and MAP sensor. Next to the distributor.

Anyone know what this connector and wiring is for? One of the wires has a butt connector but is not connected to anything and I couldnt find any wires nearby that were just hanging loose. One of the wires looks pretty cooked.

 

HVAC inline connector

If AC is removed, this connector does nothing. The large red wire that is also butt crimped powers the blower fan, so vent/defrost still works

 

Wow that is utt bucking fugly

There should be a license that requires a test before they let people buy dykes

 

Thank you, I appreciate it. I have working A/C so I am going to see if I can't get a soldering iron and flux in there.

 

The one that's smoked is the blower motor ground. A better plan for that would be, take that big fat black wire that comes from the blower motor and over the top of the evap housing, cut it loose from that first butt splice, put a BIG FAT HEAVY DUTY ring terminal on it - NOT one of the little weenie regular ones, but rather, one more nearly like what would be on a batt cable - and ground it HARD to something BIG and SOLID and METAL, with a star washer behind it. That would entirely bypass that stoooopid black connector that always burns up, AND that little weenie blue butt splice that's burned up, and although it would somewhat violate the car's original separation of the HVAC harness from the whole rest of the vehicle, would probably make the blower motor blow twice as hard.

The reason the green wire is just laying there, is because the 2 green wires that go into that one butt splice, used to each go to the stooooopid black connector individually and crimped together up there, instead of ... like it is.

That red wire and all that, is the high-speed blower motor battery feed. In the 3 low speeds, the 12V flows from the brown wire behind the dash (probably just as burnt up as what's under the hood, since it about always is, has the same kind of that black STOOOOOOOOOOPID connector that actually employs the plastic as the tension element to maintain the contact, which is of course DEFECTIVE engineering and is GUARANTEED to fail and always does), through one of the 3 low-speed contacts of the fan switch, through the resistors, and to the relay; but for high speed, the 4th contact of the switch sends 12V to the coil of the relay, which changes the blower motor's power source from the resistors, to that big fat red wire. Meaning, depending on what's inside that splice in that wire, it'll probably burn up eventually too; more likely sooner than later. Correct strategy for that is to get a pair of the BIG FAT HEAVY-DUTY slide terminals w yellow insulation (#10-12) - NOT the little weeeeeeeeenie ones that look just like the little red ones, I'm talking the BIG FAT HEAVY-DUTY ones - and replace whatever the clearly un-understanding person put in the red wire.