Hello all. First post and new H3 owner. So far I absolutely love it!! For info it's a 2007 h3 5L auto. Everything seems good with it except one puzzling issue. At highway speeds only (65+) when you take your foot off the accelerator it makes a rumbling/growling noise that resembles a jake or exhaust brake. The second you touch the gas it disappears, just like a jake brake. But it only does it at the higher speeds. Any thoughts? Thanks. Shaun

 

Welcome to the forum and congrats on the purchase. I dont have a clue about your issue with the rumbling, but I am sure some other fellas will chime in.