I bought my avenger new 6 months ago. it has been back to the dealership at least 8 times since then. there is a noise in the front end that the dealership has replaced my struts twice and tie rod. and it seems to have a problem with the transmission, it "bucks" sometimes, and sometimes doesn't even shift. the dealership is saying they dont know what is going on because no codes come up when they scan. they take it for test drives and nothing happens, but the dealership is in a town with lower speed limits than where i live. i live and work on major roadways with speeds of 55+ mph so my car doesnt really ever run under 55mph and they are testing on roads with 25 and 30 mph limits. i bought the car to have a safe reliable vehicle and it hasnt been either. has anyone else had these problems or know what could be causing these issues?