AC max setting not working

[spyboy]

First there was a strange smell coming out of ac then no high speed fan on max AC other speeds work well and no smell. The smell was sort of sulfur like.

[Captn. Crunch]

Sounds like it's time for a blower motor resistor. Pull the rad. overflow bottle and you will see a six wire plug. Behind the plug is the resistor. Check the plug for melted connectors. I changed resistor once. Second time I changed blower motor, resistor and plug. Worst part was cutting the plastic cover to get the blower motor out.
Good luck