Check out this video for what to check if your heat or ac fans are making rattling, clunking or vibrating noises while they're on. It may be an easy fix!
Andy explains what can cause front/rear climate controls to not work properly, and shows you how easy it can be to replace the blower motor in your car or truck!
Cristian explains the most likely reason your blower fan is only working at the highest speed, and how you can discover that or the other problems that could make your fan not work!