tekwaldo

I have a 79 that I am restoring. There is a part hanging on the cross brace under the hood that has a vac line or something attached to it also 2 elec. tabs at the bottom. What the heck is this for?

Dennis Wilson

The part is your A/C idle air solenoid. When you turn on the A/C the solendoid opens a valve to let more idle air into the engine. This keeps the engine from stalling with the extra drag caused by the A/C compressor. BTW there should be two vacuum lines going to it.

Dennis

BC

Its the solenoid valve for the AC compressor "idle increase" when you turn on the AC.

BC

Simul-post. Cool.

tekwaldo

Thanks, I was hoping it was something like that. It didn't seem to effect the way it ran. I'll have to figure out where the wires have gone.

WallyP

You are looking for a black wire that runs to the same connector as the A/C clutch wire, and a brown wire that runs to ground.