Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

heating ac blower control switch

Old May 19, 2012 | 06:02 PM
  #1  
92blackRSttop's Avatar
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heating ac blower control switch

I need to change the blower control switch in the dash right above the radio. I got the front panel off the radio/control area and got the heating/ac part to pull out just a little bit but it seems the wiring behind it won't let it come out anymore.

**I don't know what I'm doing here, only trying to figure it out since I want to drive my car before my hubby will be home next to fix it. This is likely a silly problem, but I'm stuck. Help is appreciated. The guy at the parts store said it was something that I could do on my own.
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Old May 20, 2012 | 08:58 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: heating ac blower control switch

Originally Posted by 92blackRSttop
I need to change the blower control switch in the dash right above the radio. I got the front panel off the radio/control area and got the heating/ac part to pull out just a little bit but it seems the wiring behind it won't let it come out anymore.
Welcome to TGO, 92.

Three connections on the backside viewed from the top of the unit. The problem is probably in the second pic. The slider cable has a tab that pushes into a slot. IIRC, I used a short, flat-bladded screwdriver to disconnect it.

JamesC
Attached Thumbnails heating ac blower control switch-img_0506.jpg   heating ac blower control switch-img_0507.jpg   heating ac blower control switch-img_0508.jpg  

Last edited by JamesC; Jun 14, 2012 at 02:08 PM.
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Old May 20, 2012 | 08:59 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: heating ac blower control switch

Couple more from the bottom of the unit. The little 'circle' in the first pic fits into the cable tab. The two 1/4" screws and the retaining washers can be seen in the second pic.

Here's a link to a promising fix for the switch:

https://www.thirdgen.org/forums/inte...anent-fix.html

JamesC
Attached Thumbnails heating ac blower control switch-img_0510.jpg   heating ac blower control switch-img_0533.jpg  

Last edited by JamesC; Jun 14, 2012 at 02:10 PM. Reason: Additional Info
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Old Jun 14, 2012 | 02:56 PM
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Car: 1987 Trans Am
Engine: 305 TPI
Transmission: 700 R4
Axle/Gears: 2.73
Re: heating ac blower control switch

The white thing is selector your switch. The 2 black washers are what you want to remove. That is what I had to use needle nose pliers and a screwdriver on. Also, you can see two 7m screws that have to come off. I thought mine had 1. Just remove both of those screws after you get the "one way" washers off. You are halfway home.
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Old Jun 14, 2012 | 03:00 PM
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From: St. Charles, IL
Car: 1987 Trans Am
Engine: 305 TPI
Transmission: 700 R4
Axle/Gears: 2.73
Re: heating ac blower control switch

Sorry guys I think I put this post in the wrong place.....
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Old Aug 24, 2012 | 10:10 PM
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Re: heating ac blower control switch

Are their different types of blower switchs for the 91 TA
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Old Aug 24, 2012 | 10:20 PM
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Re: heating ac blower control switch

I have 91 GTA and I wanted to know if ther is a difference in blower switchs or ac climate control switchs. And if so which would my bird have THANKS
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Old Oct 8, 2014 | 04:19 PM
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Car: 91 Firbird Formula
Engine: 5.0 TBI
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Re: heating ac blower control switch

Wow, Thanks. 50 cents at the hardware store and my problem is gone! My HVAC control switch works perfectly now.
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Old Oct 8, 2014 | 07:10 PM
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From: St. Charles, IL
Car: 1987 Trans Am
Engine: 305 TPI
Transmission: 700 R4
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Re: heating ac blower control switch

I'm glad it helped....
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Old Aug 25, 2018 | 08:15 AM
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From: Lafayette, Indiana
Car: Ford F-150 Limited, 1992 T/A GTA
Engine: 5.7 TPI
Transmission: Auto
Re: heating ac blower control switch

Anyone have the part number for the switch?

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