This is for a digital dash hvac harness. It's these ones here that I'm holding. Ones a purple one with a spade terminal, the other has two wires and has a clip sort of thing


then there's this black one, looks like an air line


this is a bit of a concern to me, there's no plug on the digital hvac harness to go into that terminal that you see on that ac box, the analog one had one though. Not too sure about this either

 

Not sure about the vacuum hose, but maybe you got the wrong motor. The purple and the black one are power and ground to the blower. Only way I can think of the motor itself having a multi-pin connector is that the system that the motor belongs with bypasses the resistor pack and uses different brushes in the motor (something like 5 brushes, 4 having different positions for different speeds and one common, similar to home HVAC blowers).

I'll need to look up the digital system in my FSM.

 

Okay thanks! I have noticed other hvac harnesses for the digital cars are like this without the blower plug. I do still have the analog harness with the plug, do you think it would be possible to splice it into the digital harness?

 

Where did you get the blower motor? I'd think you would just replace that. If the harnesses are pretty much the same in the engine compartment (and from what I see they are), then the motor is the problem.

Oh, and the vacuum hose is either the vacuum inlet to the switching mechanism or the outlet to the heater control valve (since you have an A/C car). Hook it to the engine's HVAC port and if the vent doors don't work, it needs to go to the heater valve.

 

It's a stock blower motor I believe

 

Not for our cars. Every blower I've seen in every thirdgen in junkyards is the single purple and single black spade terminals in and out. Which is why the harness doesn't match.

You should be able to get a motor cheap at a junkyard. Just be sure to test it with a battery before you leave,

 

I just did some research and you're definitely correct. That's a relief, I was scared I was going to have to go hunting for a different wire harness. Thanks for the help!

 

My '87 has spades, my 91 had a weatherpack connector. I'd guess the year for the break in design would be 90 or 91 and may have not applied to all models (don't quote me on that, though).

Side by side -

 

mines an 89 which had the weatherpack connector

 

Hmm... Sounds like GM did some goofy stuff again. The non-A/C 91 I got the engine electronics out of had the spades.