Thank You for writing into AskPatty! First off I am not sure if your Avenger is a 2.0, 2.4, 2.7, or 3.5L engine. To address the concern of your Exhaust Gas Recirculatory Valve (EGR), there is only (1) EGR Valve. If your vehicle is under the factory warranty it should be a covered item under the dealership.
Hope This Helps!
A. J. Valle
I've not heard of 2 EGR valves, but all vehicles are different. If you had a check engine light on and you replaced the valve yourself, you still need to have the code cleared with the use of a scan tool. After that you can see if it comes back on, then you'll know that there is still a problem.
〉 Answered on Jun 7th, 2012 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines