Three problems related to sway bar have been reported for the 2011 Dodge Avenger. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Dodge Avenger based on all problems reported for the 2011 Avenger.
I am having back suspension problems where the car fishtails bounces you feel like you are shifting from side to side and it's once you go over 10 miles an hour it can happen going over a small bump it has happened multiple times I've had to replace my all my tires three times I've only had the car almost two years I've replaced my sway bar I pretty much have replaced my whole back suspension and it did not help. It is whether you're going straight or not the backend still shifts all the time when you're in motion when you're sitting still you don't feel nothing I've heard crunching going over bumps I've heard crunching turning the whole back suspension is a piece of crap. Otherwise I love the car but that is something you guys need to investigate on the car I feel so unsafe I feel like my car is just going to roll or I'm going to flip it or something if I'm going into a full turns at all while in motion.
When traveling at 55 or faster the rear of the car sways/bounces sideways on bumps in the road. The more weight in the back seat or trunk area the more it sways/bounces. I have taken it to 2 dealers and they both could not find anything. I have had an aliment done but they said it was not needed and they could not find anything wrong. They said to take it to a dealer and have the sway bar checked. I'm have gotten no were with this problem.
Rear shifts side ways when going over any bump or expansion joint on road. Driving in snow or ice is very dangerous because rear is always sliding back and forth had car checked align is good they said sway bar is conected too far away from wheels allowing rear to sway.