Hey everyone, I just recently noticed noises from my vents in the truck when the ac is on. Every 5-10 seconds or so it sounds the like the blower is going higher and lower. The ac has always blown cold and there hasn't been any issues with switches etc.,
Any ideas?

 

Blower motor resistor going bad... just replaced mine...very easy. behind your glove box and a $20 part if you have manual A/C

 

Hi carl292,

Have you had a chance to swing past your dealer for a diagnosis? They'll be in the best position to assist.

Meagan

 

Would the resistor going bad cause a deep humming sound behind the glove box when AC is on high and even slightly on the 3rd setting?

 

Should be an easy diagnosis: press the sides of the glove box door, lower it, and then see if that resistor is the source of the hum noise.