![Update: Took out blower motor and found wheel was broken. Noise problem solved. All of a sudden my 4th/high setting stopped working. AC/Heat just shuts off and no air comes out. Could Update: Took out blower motor and found wheel was broken. Noise problem solved. All of a sudden my 4th/high setting stopped working. AC/Heat just shuts off and no air comes out. Could](https://preview.redd.it/update-took-out-blower-motor-and-found-wheel-was-broken-v0-2d3c4yhe6daa1.jpg?width=640&crop=smart&auto=webp&s=baaf2555ffe491c3253b98583ec561748174d289)
Update: Took out blower motor and found wheel was broken. Noise problem solved. All of a sudden my 4th/high setting stopped working. AC/Heat just shuts off and no air comes out. Could
![Blower Motor Relay: Function, Causes of Failure, and Replacement Cost - In The Garage with CarParts.com Blower Motor Relay: Function, Causes of Failure, and Replacement Cost - In The Garage with CarParts.com](https://www.carparts.com/blog/wp-content/uploads/2023/03/automotive-blower-motor-relay.jpg)
Blower Motor Relay: Function, Causes of Failure, and Replacement Cost - In The Garage with CarParts.com
![Blower Motor Relay: Function, Causes of Failure, and Replacement Cost - In The Garage with CarParts.com Blower Motor Relay: Function, Causes of Failure, and Replacement Cost - In The Garage with CarParts.com](https://www.carparts.com/blog/wp-content/webp-express/webp-images/doc-root/wp-content/uploads/2023/04/ford-blower-schematic-1024x700.jpg.webp)