When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have two sets of wires I am trying to figure out where they go. Both are under the hood near the wiper door vacuum actuator on my 72 base coupe with AC and automatic transmission. One is a black wire with spade connectors coming off at two points about 4 inches apart (A). The second is a connector that has two green and on black wires coming into it, with the wires cut off coming out of the connector (B). I have looked around, but can’t find where these attach too. Thanks in advance for your help. This forum is the best!👍
Marc in Indy
Thanks for the bump. The wiring at the relay is intact, so cut-off connector "B" is odd. My high speed is missing on the fan, so next weekend I'll trouble shoot the fuse and relay for the high speed blower as covered here in the forum. I'll take a second look around my AC to see if I can find terminals for the other two spade connector wire "A".
The A/C part is a thermal limiter fuse, it "blows" when something is causing a drag on your compressor, it will smoke and 'save' your compressor from burning up. It will blow and smoke when the system is low enough on freon or lubricants. Wire 'A', black wire, goes to the superheat switch on the back of the compressor; Wire B ends at a plug that goes to the compressor's clutch (front of the compressor) Joining that wire in the plug is a black ground wire that grounds to the compressor bracket; Wire C green wire goes into the wire bundle and is for who-knows-what, likely the power switch.
1972 Mystery Wire Time
