Blower motor issue

DravenBlade

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Hello,

New to this and new to mustangs. Just bought an 07 gt 4.6l. Previous owner declared the ac blew cold only through the defrost and would cut on and off occasionally.

So I figured blend door switch, and possibly either fuse or blower motor resistor. Well on the day I was going to pick up the parts the blower motor quit completely. So far I've installed the blend door switch, the resistor, and a blower motor itself.

I've swapped all relays with known good, and checked all fuses that I can think of in the system. I've reset the battery just to ensure the actuator was right, but I can't get anything to blow out of my vents.

P.S. the a/c clutch does engage.
 

cavero

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Do you hear the blower motor going and the flow is just blocked? Or is it not even kicking on?
 

DravenBlade

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It's not kicking on at all. I just tested the orange/black wire at the resistor. It reads 10.6 volts on speeds 1-3, and 0v on speed 4.
 

DravenBlade

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How can I make that image more sharp? That seems to be my biggest issue is finding the diagrams, but they're all really fuzzy.
 

Blue03Cobra

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Hello,

New to this and new to mustangs. Just bought an 07 gt 4.6l. Previous owner declared the ac blew cold only through the defrost and would cut on and off occasionally.

So I figured blend door switch, and possibly either fuse or blower motor resistor.
Firstly, welcome!

The blend door actuators themselves are also notorious for failing, so once you get the blower motor situated, you might take a look at these threads, as well:


 

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