Whenever I stop quickly there is a thunking sound like in the rear gas tank area. I have had the complete gas tank replaced and it is still there. The dealership has no clue as to what it could be. Any suggestions?

Loose spare tire. Loose battery. Loose jack. Loose bowling ball. Loose 50-gallon drum of medical waste...could be anything.

:smile: Just curious :confused: Why did you have to have your gas tank replaced? Don't think I've seen anything about that before!:roll:

Might just be the gas in the tank.

As many have said or hinted....it could be anything.

Have you tried driving the car with someone laying in the back to determine and localize the "thunk".

You cannot count on the dealer to do that.

http://i119.photobucket.com/albums/o132/pats50fan/smilies/welcome4.gif to the site!!! Another Hillsdale person :nuts: :nuts: :nuts:

I hear that off and on and just figured it was the float in the gas tank.

http://i119.photobucket.com/albums/o132/pats50fan/smilies/welcome4.gif to the site!!! Another Hillsdale person :nuts: :nuts: :nuts:

Hey I missed that!

I couldn't miss it. Maggie's Mom, we are having a Cedar Point Meet on June 9.
If you are interested check it out here: Cedar Point Meet (http://www.chevyhhr.net/forums/showthread.php?t=6937). Also, some time we should have a mini G2G so we can have a double HHR photo-op!

In response to why I had the gas tank replaced that is what the dealership chose to do to fix the problem, which it did not do.

:smile: Sounds like it's just the gas sloshing around in the tank! I noticed something like that when we first got our HHR back in August '05. We never did anything about it, and after a while you just don't hear it anymore.
(Just like when my Wife nags me!!):nuts: