Hope all is well guys, its been awhile but I'm looking for info. I'm working on my AC, I have it running. However when I move the ac controller to high its stops blowing. But as long as I have it on medium it blows. Do I need to replace the switch or is it a different part I'm needing. Thank in advance for all info.

 

Welcome. There is a separate relay and in-line fuse along the firewall for the high speed setting so check those. Common problem so do a search for more info. Goggle often works better (include Classic Oldsmobile) than the search within the forum.

 

High speed uses a separate power source from the medium speeds. The problem could be the fuse noted above, the relay that switches it, or the switch on the control panel.

 

thanks for the info. I will check that