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Author Topic: A/C, blower connections under hood  (Read 709 times)

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Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #30 on: July 08, 2019, 01:57:14 PM »
So far all I know Iím missing is the wire from alternator to to harness for the high fan and maybe a couple connectors on the wires I took pictures of. Not really sure otherwise yet.
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #31 on: July 20, 2019, 09:53:08 PM »
Iím gonna figure this out sooner than later. This week I plan on trying to sort through my harness, figure out what I have and donít, test what I do have if possible then Iím gonna pick up and install this kit I think.

https://originalair.com/77-78-12-firebird-exc-turbo-134a-engine-compartment-upgrade-kit-pressure-switch-stage-2
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #32 on: July 21, 2019, 09:36:42 AM »
Alright I give, whatís the circled component below?
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline Burd

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Re: A/C, blower connections under hood
« Reply #33 on: July 21, 2019, 10:43:20 AM »
Ac muffler and thereís a bracket.  77? I think, late 78 and 79 doesnít have it. 

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #34 on: July 21, 2019, 10:45:15 AM »
So probably wonít need it with the aftermarket kit Iím using Iíd think?
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline Burd

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Re: A/C, blower connections under hood
« Reply #35 on: July 21, 2019, 11:23:48 AM »
You can see the 79 system on Brettís car.
Prob not. 

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #36 on: July 21, 2019, 11:53:31 AM »
O yea I see. No muffler on it. Ok cool that helps.
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #37 on: July 22, 2019, 02:11:18 PM »
 Well I finally had a chance to do some troubleshooting today. I was able to confirm that the salad green wire Iím holding in my first picture goes to the compressor for power, the two wires with connectors in my other picture go to the thermal switch,  then I have a light green with black stripe that I believe goes to the idle stop solenoid and then the connector with green wire and light green wire goes to my pressure switch.

 I ran a jumper wire from the battery to the red wire and confirmed that my high fan speed does in fact work still and I also tested voltage at the light green wire going into the pressure switch which has 12v when my cabin controls are set to an air setting.

Now I think I know enough works to pick up that kit. Should be pretty straight forward from here I would think.
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline Burd

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Re: A/C, blower connections under hood
« Reply #38 on: July 22, 2019, 02:34:51 PM »
I have a good red wire. But I had to pinch a female connector off it. 

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #39 on: July 22, 2019, 05:08:00 PM »
Mine is good from the firewall to the first connector which looks slightly melted but usable I think. You donít have the extra piece that runs from there to the alternator though do you? Didnít you have to reuse that on yours?
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline Burd

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Re: A/C, blower connections under hood
« Reply #40 on: July 22, 2019, 05:50:50 PM »
I can pull the red wire for you, I did have to punch a female connector. Maybe yours is good. They come off easily.

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #41 on: July 22, 2019, 06:31:59 PM »
Send or post up a pic next time you have a chance.
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline Burd

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Re: A/C, blower connections under hood
« Reply #42 on: July 22, 2019, 07:15:25 PM »
I have the harness for under the dash if you need too. Itís plugged in the the main harness in my pic.  Itís perfect.   
Hereís the all I have.
« Last Edit: July 22, 2019, 07:32:16 PM by Burd »

Offline b_hill_86

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Re: A/C, blower connections under hood
« Reply #43 on: July 22, 2019, 08:02:59 PM »
Hmm. I think I have all of that in tact minus two connectors. The one to the compressor and the one to the idle stop solenoid but I donít think Iím going to need either connector with this kit.

I was looking for the wire from alternator to the connector for the high fan speed. I think you said youíre keeping that though right?
-Brian-

1977 Trans Am 400 4 Speed Hardtop

Offline Burd

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Re: A/C, blower connections under hood
« Reply #44 on: July 22, 2019, 08:10:51 PM »
Anything in the pic you can have. 
« Last Edit: July 22, 2019, 08:11:05 PM by Burd »