A/C wire harness

1973olds98 · July 27th, 2009, 01:13 PM

i have a 73 olds 98 that I am trying to reinstall the ac componets and hope to have it blowing cool air...Could anyone tell me where theseplugs go...I know one plugs into the front of the pump and that the one with the ring terminal is a ground to the block,,,but what is the other plug and the one the has a rubber boot over it..See the pic,,,and thanks

jensenracing77 · July 27th, 2009, 04:07 PM

Quote:

Originally Posted by 1973olds98

i have a 73 olds 98 that I am trying to reinstall the ac componets and hope to have it blowing cool air...Could anyone tell me where theseplugs go...I know one plugs into the front of the pump and that the one with the ring terminal is a ground to the block,,,but what is the other plug and the one the has a rubber boot over it..See the pic,,,and thanks

the one all the way to the left goes to the back of the compressor and the other one will have a little switch plugged into it. your switch is missing because it only plugs into the harness and clips to the compressor bracket. what i do most of the time is to bypass this switch it is some kind of temp switch so if the compressor gets to hot it will blow the switch. the new switches i have had don't last and have to replace them all the time. to bypass it you can just hook the black wire to the green wire on the center plug. the wire that goes to the back of the compressor will no longer do anything. you could try another switch, you may have better luck than i did. i just use a fuse to jumper the two wires. just plugs right into the plug.

1973olds98 · July 27th, 2009, 05:21 PM

So your talking about the wires that are running 2 the connector where the switch plugs in...i seen the switch at autozone 13.99,,,

jensenracing77 · July 27th, 2009, 05:39 PM

Quote:

Originally Posted by 1973olds98

So your talking about the wires that are running 2 the connector where the switch plugs in...i seen the switch at autozone 13.99,,,

you could try the new switch. just carry a spade fuse of 20 amp in the glove box. if the new switch goes bad and quits blowing cold air you can just unplug the switch and put the fuse between the two terminals to get you by. i think that "switch" may be the wrong term but it is what i have called it. new cars don't have this switch. i don't think that they were even on cars by 77 but i am not sure. my 76 98 had one.

1973olds98 · July 27th, 2009, 06:38 PM

Apon further inspection it looks like the 2 wires on the left are already spliced together,,Is this like u mean by bypassing it,,If so it looks like someone has already done this..Should i fix it back the way it should be and use a fuse to join the center wire with the one on the left,,,or will it be fine the way its spliced if that is what you were talking about,,,thanks

jensenracing77 · July 27th, 2009, 07:01 PM

it looks like that is what they did. i would make a better splice if you are going to keep it bypassed. at least tape it up good. the fuse that i was talking about was not for protection of the circuit, that is all ready done at the fuse box. it is just an easy way to bypass it for short term use. if you want to bypass it permanently you should splice it and use heat shrink around the connection.

1973olds98 · July 27th, 2009, 08:51 PM

i think I may have found a harness in better shape, the same guy I am getting the pump from is really helping me out with the parts I need.......The splice had tape around it but i could not tell what for until i unwrapped it...thanks 4 your quick replies,,,You was a big help.

July 27th, 2009, 07:01 PM	#6 (permalink)
jensenracing77 Registered User Join Date: Feb 2009 Location: brazil indiana Posts: 1,022	it looks like that is what they did. i would make a better splice if you are going to keep it bypassed. at least tape it up good. the fuse that i was talking about was not for protection of the circuit, that is all ready done at the fuse box. it is just an easy way to bypass it for short term use. if you want to bypass it permanently you should splice it and use heat shrink around the connection. __________________ 70 Rallye 350 72 Cutlass 00 Silhouette 90 Toronado Trofeo

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July 27th, 2009, 05:21 PM	#3 (permalink)
1973olds98 Registered User Join Date: Jun 2009 Posts: 215	So your talking about the wires that are running 2 the connector where the switch plugs in...i seen the switch at autozone 13.99,,,

July 27th, 2009, 08:51 PM	#7 (permalink)
1973olds98 Registered User Join Date: Jun 2009 Posts: 215	i think I may have found a harness in better shape, the same guy I am getting the pump from is really helping me out with the parts I need.......The splice had tape around it but i could not tell what for until i unwrapped it...thanks 4 your quick replies,,,You was a big help.