My 2011 HHR LS has 113,500 miles and is making a rumbly sound from the dashboard area when accelerating. The noise is only when the car shifts in first and second gear. Once it's in 3rd gear the noise stops. Anyone have a similar issue or know a solution?

 

could be a number of things, from the air cleaner box mount , ice in the wiper area, broken flex joint on the exhaust, heat shield I'm sure others will chime in!

 

We're sorry to hear that you are experiencing this problem with your vehicle. I am not a technician and cannot offer technical advice but I will be glad to take a further look into your concern for you. If any extra assistance is needed, please send is a PM with your full contact information, current vehicle mileage, VIN, and preferred dealership.

Kristen A.
Chevrolet Customer Care

 

My thought is a failing flex pipe in the exhaust, give the thread below a read by clicking on the link.

https://www.chevyhhr.net/forums/how-tutorial-library-21/how-repair-flex-pipe-31536/