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The front blower stopped working?

Tiny
TSCOTT5
  • MEMBER
  • 2005 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
The rear works fine, the compressor is working (because cold air comes through the front at highway speeds and the back works). Have replaced the blower and resistor. The blower just does not turn on at all. The fuses I have checked are all fine but may have missed some. I would love to know what all fuses/relays to check and next steps.
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Monday, November 4th, 2024 AT 6:25 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,420 POSTS
Yep, we can help you, so the blower motor is not getting power or ground.

this guide will show you how to test for both:

https://www.2carpros.com/articles/how-to-test-an-automotive-hvac-system-blower-fan-motor-a-detailed

Here are the ground locations (G200 near the right kick panel) and the blower motor wiring diagrams so you can see how the system works. Make sure the blower fuse #40 is getting power in the under-hood fuse panel.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.

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Tuesday, November 5th, 2024 AT 11:29 AM
Tiny
TSCOTT5
  • MEMBER
  • 7 POSTS
Found a loose connection in the resistor harness and now everything is working. Thanks!
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Friday, November 8th, 2024 AT 12:11 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,420 POSTS
You are welcome, please use 2CarPros anytime we are here to help.
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Saturday, November 9th, 2024 AT 10:49 AM

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