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  Topic Review (Newest First)
07-08-2019 01:19 PM
TomatoSoup
Quote:
Originally Posted by Robotech View Post
Yea, that's the one! Is this the same plug?
Well, from this thread, it looks like it is: https://www.hummerforums.com/forum/h...call-gm-35541/
07-08-2019 12:44 PM
Robotech
Quote:
Originally Posted by TomatoSoup View Post
What, this ol' thing?




(Extract from: https://www.cars.com/research/hummer-h3/recalls/ )
Yea, that's the one! Is this the same plug?
07-08-2019 11:22 AM
TomatoSoup
Quote:
Originally Posted by Robotech View Post
Someone please correct me if I'm wrong but isn't this the problem Hummers were recalled for? I remember somewhere in the dark damp recesses of my aging brain something about us having an HVAC issue sometimes similar to the one that GM recalled the H2 or H3 for.
What, this ol' thing?


Quote:
Recall Number 15V421000
Recall Date 07/01/2015
Component VISIBILITYEFROSTER/DEFOGGER SYSTEM:WINDSHIELD:BLOWER


Summary
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat.

Consequence
If the blower motor connector module overheats, it can increase the risk of a fire.

What Owners Should Do
GM will notify owners, and dealers will replace part of the blower motor connector and harness, free of charge. The recall began February 26, 2016. Owners may contact Hummer customer service at 1-800-732-5493. GM's number for this recall is 15042.
(Extract from: https://www.cars.com/research/hummer-h3/recalls/ )
07-08-2019 11:13 AM
Robotech Someone please correct me if I'm wrong but isn't this the problem Hummers were recalled for? I remember somewhere in the dark damp recesses of my aging brain something about us having an HVAC issue sometimes similar to the one that GM recalled the H2 or H3 for.
07-07-2019 02:05 PM
TomatoSoup
Quote:
Originally Posted by 1994SC2 View Post
one thing that that was confusing in my situation was the coloring of the wires, which either faded over time, or simply didn't match perfectly to the aftermarket part. An OEM part may have better color matching.
Looking at the 2008 schematic, the original colors are correct (there ARE two orange wires). For others doing this, you should take pics before (as 1994SC2 did) so you can match the wires by position in the connector.

(Interestingly, in my older 2006 NA schematic, one of the two orange wires is shown as black - the one next to the yellow.)
07-07-2019 12:27 PM
1994SC2 I didn't do much to make the wire connections more permanent than needed given there would be no tension on the wires. Just a little twist and wink effort. The remainder of the connection is simply plugging in to to the harness and resetting it with a bolt back in its holding position.

After reattaching the battery and turning on the AC I swear it was never so cold. Have a beer to celebrate.

As a disclaimer, to each their own and reporting on my method is not to say it is the best but I know so many things in life are solved by google and some other idiot stumbling through before me and leaving breadcrumbs so I hope this can be of some assistance to another soul in the future.
07-07-2019 12:21 PM
1994SC2 You will likely need to strip the wires to connect them to the new harness. Though there is a reasonable amount of excess slack in the wires from GM one thing that that was confusing in my situation was the coloring of the wires, which either faded over time, or simply didn't match perfectly to the aftermarket part. An OEM part may have better color matching.

Once stripping I then married up the correct wires to connect to the harness which then plugs in to the resistor.

...continued >
07-07-2019 12:16 PM
1994SC2 The next step was to obtain the replacement part, which was in stock at Advance Auto Parts - though it was the only one in inventory. It was a one day sale so items were 20% off but the item was still nearly $70.

Of course online would have been wiser way to obtain the part... as a comparison between Amazon and Autozone

Before you begin, you should of course be certain to disconnect the battery and get the right tools set aside for the job. I also suggest parking in shade or a garage with a gardening mat as you will be on your side/back a while.

...continued >
07-07-2019 12:09 PM
1994SC2
Fan Blower Resistor Replacement

In late 2017 I lost all cool air from my AC system. Thanks to this forum and some poking around I was able to self-diagnose the problem. I hope these image filled posts help anyone else trying to repair the same problem.

After checking fuses I followed instructions to try to identify the cause of the cool air loss. One such possible explanation was the resistor. To access the blower and the wiring system you need to drop down the glovebox, detach it and reach awkwardly under the dash region. Other threads cover that process quite well so I will skip over it.

In my situation, the fan blower resistor and wiring harness had cooked up somehow and the electrical shock fried off one of the copper connectors. After getting very good at accessing the underbelly of the Sky via the glove compartment I removed all of the flawed components just some pulling and wire snipping.

You can see the damage points and removed components below.

...continued >

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