Hello everyone, I have a 2008 H3, and I really like it. At about 36,000 miles I started to notice a humming/moaning noise coming from behind my radio. From the outside the truck purrs like a kitten. The noise is only heard from inside and I only notice it while stopped and at idle in and out of drive. I brought it to a GM dealership (nothing found) Midas (nothing) found and a Mastercraft mechanic (nothing found). Since I am still under full factory warranty I am bringing it to the Hummer Dealership on november 22nd. Has anyone else experienced this noise? If it is coming from the engine compartment will Dyna Mats help? Is this a normal noise? I have the stock air filter in and I do not have a cool air intake valve.
Thank you
Noisy in New Joisy