Sorry guys, did a search to see if I could answer this question but couldn't find anything.

I just installed the K&N air charger and really like it. One thing that I noticed is that when I shut the engine off there is a puffing sound, like air blowing back. At first I thought that maybe the crankcase vent hose was too long and crimping at the bend, so I cut a 1/2 inch off of it and smoothed the bend out. Problem still exists. Any ideas?

 

That's perfectly normal..mine does it too and so does everyone elses...It is the throttle body butterfly valve closing off once all the engine vacuum depletes, once the engine stops...

 

Thanks Dennis....... Once again you came to the rescue.

Maybe you should change your Mr Clean to Mr Wizard!

 

LOL...you're welcome, it's always my pleasure to try and help ease the worry of you-all on things I know about..(don't know much, but enough to find my way home from work every night)

The Mr. Wizard title is held rightfully by our Forum Gadget Wizard, Hummerguy (Mikey)...He's our IT specialist..I mean, he can network your underwear with your socks and Blackberry, using GPS microwave wireless technology, utilizing radom varibale wavelengths wireless ethernet lands, that makes your zipper one hell of a firewall, even to girls...The guy is awesome