Possible blower motor gone bad and A/C lines clogged?

Tiny
CHAD FLEMING2
  • MEMBER
  • 2017 CHEVROLET EQUINOX
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 65,000 MILES
My heat and A/C won't blow, and water is pouring out of the vent at the bottom passenger side. It would go on then would kind of lose full power and now it's just not working.
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Friday, October 29th, 2021 AT 6:11 AM

7 Replies

Tiny
JOE F
  • EXPERT
Hi,

When you say there is water coming out the vent, is it engine coolant? If it is, that could be an issue with the heater core.

As far as the blower motor, the idea that water is coming out of the vent may have caused the motor to fail or even just a fuse. So, let's start simple. I attached the wiring schematic below showing the blower motor circuit. I highlighted the fuse to check

When checking the fuse, it's not only important to check the fuse, but also, it's important to check for power to and from it. Here is a link that will help:

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

Pic 3 shows the fuse to check.

Also, let me know about the water issue. It may be a good idea to check the engine coolant level to make sure it isn't low. Also, if possible, take a pic where the water is coming from and upload it for me to see.

Let me know what you find.

Take care,

Joe

See pics below.
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Friday, October 29th, 2021 AT 8:36 PM
Tiny
CHAD FLEMING2
  • MEMBER
Blower motor seems to spin freely the water issue I found to be the A/C drain was clogged with a bug.
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Saturday, October 30th, 2021 AT 2:24 PM
Tiny
CHAD FLEMING2
  • MEMBER
Seems to be no corrosion on the connection here.
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Saturday, October 30th, 2021 AT 2:27 PM
Tiny
CHAD FLEMING2
  • MEMBER
No corrosion on the resister plugs.
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Saturday, October 30th, 2021 AT 2:29 PM
Tiny
CHAD FLEMING2
  • MEMBER
Took this out and it's kind of wet and water around the seal.
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Saturday, October 30th, 2021 AT 2:39 PM
Tiny
CHAD FLEMING2
  • MEMBER
How do I check everything with a multi meter?
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Saturday, October 30th, 2021 AT 3:22 PM
Tiny
JOE F
  • EXPERT
The resister/control module (last pic) shouldn't have been damaged by moisture. Does the fan run at any speed? Also, did you check the fuse I suggested? If you have and it was good and had power, check the red wire at the control module for power.

As far as using a multi-meter, here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

I attached the diagnostics below for testing the circuit.

Let me know what I can do to help.

Take care,

Joe

See pics below. Note: If possible, have the computer scanned for diagnostic trouble codes. If there is an issue within the HVAC control module, it should indicate a code. Also, please let me know if you have questions after reviewing the diagnostics. They are somewhat involved.
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Saturday, October 30th, 2021 AT 9:08 PM

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