No heat, no air will come out of the A/C or heater.
Feb 10, 2021 at 11:28 AM
HVAC not blowing air and no heat from the heater?
2005 CHEVROLET IMPALA
JAY73
- MEMBER
- 1 POST
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Good morning,
I attached a wiring diagram for you of the blower motor system. You need to check for voltage to the blower motor.
https://www.2carpros.com/articles/how-to-check-wiring
It could be either the blower motor or the resistor.
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
https://www.2carpros.com/articles/low-or-no-air-flow-from-vents
Roy
BLOWER MOTOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the right side instrument panel insulator.
imageOpen In New TabZoom/Print
2. Disconnect the blower motor electrical connector.
imageOpen In New TabZoom/Print
3. Remove the blower motor mounting screws.
4. Remove the blower motor.
I attached a wiring diagram for you of the blower motor system. You need to check for voltage to the blower motor.
https://www.2carpros.com/articles/how-to-check-wiring
It could be either the blower motor or the resistor.
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
https://www.2carpros.com/articles/low-or-no-air-flow-from-vents
Roy
BLOWER MOTOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the right side instrument panel insulator.
imageOpen In New TabZoom/Print
2. Disconnect the blower motor electrical connector.
imageOpen In New TabZoom/Print
3. Remove the blower motor mounting screws.
4. Remove the blower motor.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Feb 11, 2021 at 12:48 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.