Pwm???

I just noticed that the clicking noise that i thought was a piston or a valve is actually my PWM vacuum switch valve. I was wondering if it was normal for them to make a clicking sound. I couldnt find much on the internet about it so i thought i would ask yall on here. Any feedback would be great. Thanks and have a great day.

 

if the radio is down i can barely hear it. but when you stand beside the front of the truck or have the hood up you can hear it. Its just a ticking sound and i know its comin from it cause if you touch the switch you can fel it vibrating everytime you hear the noise.

 

depends on the price. if its cheap ill prolly replace it. but i have no idea how much they are or maybe you can clean them some how if there dirty. i dont know anything about them.

 

bump it