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How to replace your blower control resistor

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How to replace your blower control resistor

Postby carterFF [OP] » Oct 27 2013, 1:33am

my blower motor continued to run even with the key out of the ignition, I also lost control of fan speed. Pulling the 40A under the fuse panel shut it down, so I figured my blower motor resistor was grounded out.

Requirements:
• Skill Level: Anyone
• Time: 2 hours
• Special Tools: 5.5mm socket (not in my Stanley kit)

Things You'll Need
•7mm socket, 5.5mm socket, 1/4 ratchet, small flathead, wire stripers, splice and shrink connectors


•Step by Step instructions
-remove passenger side hush panel with 7mm socket; their are 3 screws the one closest to the center console is a pain.
-remove the 2 bolts holding the resistor in place; it will pull out of the air chamber next to the blower motor. It is about the size of a deck of cards.
-unclip the 3 prong pigtail from the harness, and the 2 prong pigtail from the back of the blower motor.
-your replacement part will have a 5 prong adapter; 2 will go back to the blower motor, and 3 bare wires that you will have to splice into the harness.
-cut off the 3 wires close to the connector of your harness. strip off about 1/4" of the insulation. 2 wires at 12g, and 1 is 22g. place the bare end in one of the crimp and shrink wire connector, and the other from the new resistor. shrink with a hair drier or torch.
-here is everyone's favorite phrase, INSTALLATION IS REVERSE OF REMOVAL.

•Evaluation
-put in 40A fuse and if you don't hear the blower motor kick in then you know you succeeded. Also make sure you have speed control on your climate controller.

•Conclusion
-for $90 and a little DIY time you did a project that would cost $125 for the part and 3 hrs labor.
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Related Topics  Not blower motor resistor/ control module   How to replace blower motor control module (99-07)   Blower mode control problem   Diagnosis... Blower Motor VS Control Module   Blower speed on dual auto climate control   99-07 manual or auto climate control blower motor issues   How to replace upper control arm ball joint   drl resistor ????   LED load resistor wiring confusion   07 radio control and steering wheel control lights   blower   Blower always on. (unless key is off)   Blower motor   Blower cuts on and off 
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Re: How to replace your blower control resistor

Postby djlove » Nov 01 2013, 8:47pm

What model truck is this for?
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Re: How to replace your blower control resistor

Postby carterFF [OP] » Nov 01 2013, 8:53pm

The one that is located to the right of my "how to" in my profile
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Re: How to replace your blower control resistor

Postby 09chevyman » Nov 01 2013, 9:06pm

It's a 07 Silverado classic or NBS Silverado...that's the pic he has in his profile.
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Onlyina_Chevy: You can try to make yourself correct, but it won't work.
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Re: How to replace your blower control resistor

Postby djlove » Nov 01 2013, 9:28pm

yea, i know there are two models that year but im assuming its the classic since i havent heard of that happening in the NNBS.

For some reason i cant see his picture. edit, i could finally get to see it, its a classic so this will work for the nbs model.
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Re: How to replace your blower control resistor

Postby Mdsjohna » Nov 01 2013, 9:57pm

Oh wow I had this go in my Frontier and it was a 5 minute job. A lot more to it on the NBS


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