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The blower fan doesn't work and I just replace the resistor…

Customer Question
The blower fan doesn't...

The blower fan doesn't work and I just replace the resistor and all it does is Click when I switch it to number 5 speed

Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on?

From the resistor

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

03 2500hd

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

I replaced the old resistor and the new one still does the same thing also I replaced the speed control switch

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I bought a new relay but can't seem to find where it is located

Submitted: 7 months ago.Category: Chevy
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Answered in 1 minute by:
10/3/2017
Chevy Mechanic: George H., ASE Certified Technician replied 7 months ago
George H.
George H., ASE Certified Technician
Category: Chevy
Satisfied Customers: 19,189
Experience: GM Tech ASE Master Tech 15+ years
Verified

Hello I will help,

Did you see any burnt or melted wiring on the resistor connector?

Do you have a voltmeter to check the circuit if I guide you?

Have you jumped power to the motor to be sure it runs?

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Customer reply replied 7 months ago
Not yet...I was going to get a volt meter and figured I'd ask on here first...the old speed selector switch was fried completely melted and the conector I cleaned up as well as I could. I used a jumper at the conector and it's still doing the same thing
Chevy Mechanic: George H., ASE Certified Technician replied 7 months ago

You will need to replace any connectors that are fried. Cleaning them up will lead to future failures.

The dealer will have a pigtail kit or Rockauto.com has them online. Solder connections to prevent unwanted resistance. It takes just a little resistance to prevent the motor from running.

Let me known how I can help, using a voltmeter will narrow down the fault to a single connection or component so it is worth getting. A set of jumper leads to see if the motor will run is helpful as well.

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George H., ASE Certified Technician
Category: Chevy
Satisfied Customers: 19,189
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Experience: GM Tech ASE Master Tech 15+ years

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