A/C Problems

Hey guys its me once again with another problem. Well my AC has been blowing on the highest setting (5) and thats the only one it works on. 2001 Grand Prix SE 3.1 V6. Any guess on the cause of this?

If you have a manual non digital HVAC system you have a bad blower motor resistor. See tech procedure below for R&R:

Click here (http://www.clubgp.com/cgi-asp/mods.asp?modid=150)

Just for reference, the newest AC-Delco part number for that resistor is 15-80571 (GM# 89018643).

Thanks Guys!