2003 Chevrolet Tahoe AC will only blow on high

Interior AC/heat fan will not blow on #1 or #2 positions, but blows hard on #3+positions. You wrote an article about this about a year ago, I threw it out and then it happened to me about 2 weeks later.

Blower motor resistor pack. . .

A word to the wise . . . also replace the pigtail while you’re at it. More than likely, it WILL be melted and/or toasty