One problem related to gas tank strap has been reported for the 2006 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Chevrolet HHR based on all problems reported for the 2006 HHR.
Fuel lines rusted out to the point of leaking. Leaking gas is on the left side in front of left rear wheel by the rocker panel. The straps that hold up the fuel tank are also rusted. My research on this shows that that this is a prevalent problem with this car. I've owned cars for more than 40 years and have never had this type of rust in the undercarriage. My car is a 2006 and has 93,000 miles on it. I had noticed a gas smell after I parked my car. After several days, I noticed a wet spot under the leak. Upon further inspection and pictures, it was clear that the gas was leaking from the fuel lines on the left rear of the car (driver side) in front of the left rear tire. I've provided pictures.