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I have replaced my blower motor resistor but I'm not getting…

Customer Question
I have replaced my...

I have replaced my blower motor resistor but I'm not getting power to the resistor. Is there a fuse that could be blown?

Mechanic's Assistant: Do all the fuses have the correct amperage for the circuits they're in?

To my knowledge. I've owned the vehicle for 2 years and have never changed a fuse

Mechanic's Assistant: What is the make/model/year of your car?

2006 GMC Yukon XL Denali

Mechanic's Assistant: Are you fixing your Yukon XL yourself? What have you tried so far?

Replaced the blower motor resistor and even hooked up a new blower motor. The old blower motor works because it sporadically blew before I started the repair.

Submitted: 2 months ago.Category: GMC
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Answered in 1 minute by:
12/18/2017
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago
Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: GMC
Satisfied Customers: 16,301
Experience: 30 YRS EXPERIANCE, AUTO AND TRUCK,FOREIGN AND DOMESTIC, GAS AND DIESEL
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Hi, my name is ***** ***** resistor controls the motor with a ground, not power, so you wont have power at the resistor, do you have power at one of the 2 wires at the blower?

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Customer reply replied 2 months ago
When I stuck my prongs into the pigtail, it didn't register but I'd like to go into a little more background. My previous resistor and blower motor worked but it was sporadic. Sometimes it worked, sometimes it didn't, sometimes it blew wide open when the fan control was set to low. That makes me less than suspicious it is electrical but the new resistor yields nothing.
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago

ok, do you have a test light or a voltmeter?

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Customer reply replied 2 months ago
I have a voltmeter but I may get a new one or a test light to make sure I have what I need. This is the wife's car so I need to get it repaired ASAP.
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago

I can help you diagnose this, when can you have a test light?

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Customer reply replied 2 months ago
It would have to be after work. I'm in SC. 3:09 currently. Are test lights expensive?
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago

no you can get one at any parts house for about 10 dollars,Tim

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Customer reply replied 2 months ago
What are my options to get your help later?
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago

you can just return to this question, or request a phone call if you like.Tim

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Customer reply replied 2 months ago
What are the fees? I'm on my work computer so I'd need to access you from another computer or request a phone call.
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago

the phone call is 26 dollars, it is not required but may make it easier to communicae,Tim

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Customer reply replied 2 months ago
Can I somehow get in touch with you to call me?
GMC Mechanic: Tim Mohr, ASE MASTER TECH replied 2 months ago

yes, just request a phone call and I will call you,Tim

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Tim Mohr
Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: GMC
Satisfied Customers: 16,301
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