we are experiencing significant noise from engine compartment when hvac blower is on and we accelerate.

blower off, engine "purrs like a kitten"

You should find more answers on this thread (http://chevyhhr.net/forums/showthread.php?t=2171). The threads in the regional areas are more for get togethers and meeting people in your area. Feel free to post questions like this on the other boards. :welcome: to the forum.

I fixed it Deb!
..and Welcome btccdr
You can find just about all the anwsers to your HHR questions if you poke around our Forum enough. You can also Click Here (http://chevyhhr.net/forums/search.php) to search for exactly what you want.