Mine does this, i thought it was my alternator but turns out its my power steering pump, it doesnt bother me to much really il just leave it till it goes![]()
Oooh! Maybe then it's related to my other thread?
http://www.cliosport.net/forum/showthread.php?t=457378
Sounds like the baffles may have collapsed in your back box, all though should not have happened if it was a new exhaust happened on my old clio but back box was quite old