hi,im hearing a humming noise thats sounds like its coming from the cat,i was just wandering if any of u guys know anything that can help me thx

 

Any power loss or CEL? maybe plugged cat... see if it is glowing red hot after a drive.

maybe more like a rattle? loose heat shield, o2 sensor or air tube?

Maybe not the cat? fuel pump could be humming. they can make a lot of noise when they are wearing out. Or maybe the emissions air pump? mine is wearing out and has a hummish noise.

 

yeah, i would bet that it's the fuel pump. mine hums all of the time, and it's new.

 

my wife likes the stuff .. mashed chickpeas right? .. never cared for it myself

(OK, bad joke, but you get a free bump)