do your struts etc leak air?
Keep your eyes open, they are having issues with the struts and I blew my right front one @ 4,000 miles. Spoke to the GM quality guy on the HHR and they do have supplier issues with the struts! Took 3 weeks to get the part too!
https://www.chevyhhr.net/forums/hhr-ss-45/blown-front-strut-ss-15624/
https://www.chevyhhr.net/forums/hhr-ss-45/blown-front-strut-ss-15624/


