Hi everyone! I have a subtle humming/grinding noise I can hear in the cabin. I recently had the valve replaced by Mr.lube. Now when I open the hood the sound is coming roughly from that area.(right in front of driver). Question is are PCV valves capable of this sound?
i tried holding the cables apart,without success, they do touch when released.

But i swear I can feel it vibrate WITH the sound, or am I just going mad [8D]

 

I dont think thats your PCV, it either rattles or it doesnt, thats the only sound they make. grinding/humming.....Might be the front diff if its a 4x4. Did they touch anything under the car? Id talk to a manager if they did.