The best way to convert a Non A/C wiring harness to an A/C wiring harness - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kna4977 · 08-28-2006, 08:50 AM

I am in the process of adding factory A/C to my Blazer. The non-A/C wiring harness is new. I have an A/C harness, but it is from 1972, so it is not in as good a shape as the harness that is currently in the Blazer. Can anyone give me tips on how to convert my harness to work with the factory A/C setup?

**PICKMUP** · 08-28-2006, 11:29 AM

You need to buy a new AC wire harness. It is "stand alone" and not part of your underdash main harness. Then you can still use your new one too.

kna4977 · 08-28-2006, 07:09 PM

Quote:

Originally Posted by PICKMUP

You need to buy a new AC wire harness. It is "stand alone" and not part of your underdash main harness. Then you can still use your new one too.

I've got an A/C harness too. Could I not use that one with my new one. If so, how would I put the 2 together?

neonlarry · 08-28-2006, 07:16 PM

uhh, standalone means they don't go together.

kna4977 · 08-28-2006, 09:46 PM

Quote:

Originally Posted by neonlarry

uhh, standalone means they don't go together.

The A/C Harness does not simply unplug from the regular harness. It includes ignition switch, wiper switch, cig lighter, etc. My question is what is the difference between a normal harness and an A/C harness, and why can you not convert a regular harness to an A/C harness.

cdowns · 08-28-2006, 10:05 PM

the A/C harness is a seperate harness from your regular harness it has nothing to do with lights ignition switch wipers dash steering column // its a harness for the air conditioning unit THAT's IT NOTHING ELSR PERION // a stand alone harness it has nothing to do with the liscence plate light either

kna4977 · 08-28-2006, 11:20 PM

Quote:

Originally Posted by cdowns

the A/C harness is a seperate harness from your regular harness it has nothing to do with lights ignition switch wipers dash steering column // its a harness for the air conditioning unit THAT's IT NOTHING ELSR PERION // a stand alone harness it has nothing to do with the liscence plate light either

Where does it separate? The harness I took out of a factory A/C truck contains wires to the lights, ignition switch wipers dash steering column etc.?

**John Fabris** · 08-28-2006, 11:35 PM

There is one red wire that goes to the front of the fuse panel, and then the gray wire for the lights in the heater ac panel, but other then that, it is a seperate harness from the main harness.....

kna4977 · 08-29-2006, 12:02 AM

Quote:

Originally Posted by John Fabris

There is one red wire that goes to the front of the fuse panel, and then the gray wire for the lights in the heater ac panel, but other then that, it is a seperate harness from the main harness.....

Thanks John for shedding some light on the situation

08-28-2006, 08:50 AM	#1
kna4977 Senior Member Join Date: Jul 2006 Location: Midlothian TX Posts: 306	The best way to convert a Non A/C wiring harness to an A/C wiring harness I am in the process of adding factory A/C to my Blazer. The non-A/C wiring harness is new. I have an A/C harness, but it is from 1972, so it is not in as good a shape as the harness that is currently in the Blazer. Can anyone give me tips on how to convert my harness to work with the factory A/C setup?

08-28-2006, 11:29 AM	#2
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,126	Re: The best way to convert a Non A/C wiring harness to an A/C wiring harness You need to buy a new AC wire harness. It is "stand alone" and not part of your underdash main harness. Then you can still use your new one too.

08-28-2006, 07:16 PM	#4
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	Re: The best way to convert a Non A/C wiring harness to an A/C wiring harness uhh, standalone means they don't go together. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

08-28-2006, 10:05 PM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: The best way to convert a Non A/C wiring harness to an A/C wiring harness the A/C harness is a seperate harness from your regular harness it has nothing to do with lights ignition switch wipers dash steering column // its a harness for the air conditioning unit THAT's IT NOTHING ELSR PERION // a stand alone harness it has nothing to do with the liscence plate light either __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

08-28-2006, 11:35 PM	#8
John Fabris TOTY 2006 Join Date: Dec 1999 Location: Magalia CA USA Posts: 2,270	Re: The best way to convert a Non A/C wiring harness to an A/C wiring harness There is one red wire that goes to the front of the fuse panel, and then the gray wire for the lights in the heater ac panel, but other then that, it is a seperate harness from the main harness..... __________________ John Fabris 67 C10 SWB



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