Fan speed switch

[NY87GN]

I noticed the other day while driving, my fan only blows out air on the highest setting . Nothing comes out of the vents on the lower settings. Any advice would be greatly appreciated...

 

[RmvBfrFlght]

Check the blower resistor and the connector for it. It is located under the hood on the top of the HVAC box.

RemoveBeforeFlight

 

[davelostmissing]

What he said
This:

http://www.nos4gn.com/servlet/the-370/Buick-Grand-national-parts/Detail

congrats on an easy fix

 

[NY87GN]

Many thanks for the quick feedback and help.