Engine Noise problems of the 2002 Chrysler Concorde

2002 Chrysler Concorde 2. 7l engine. Engine noise due to excess sludge build up in engine even though suggested maintenance routine was followed performing oil changes at proper intervals. Clio michigan Chrysler dealership maintenance technician suggested a total engine rebuild or a used engine replacement at a cost of more than 3000. 00 dollars even though the engine has only 73774 miles of normal driving use. Upon further investigation it was discovered that there have been numerous complaints and subsequent class action lawsuits filed against daimler Chrysler corporation as a result of premature failure of the 2. 7l engine manufactured by the Chrysler corporation. I then filed a formal complaint with the Chrysler corporation in regard to the engine noise and possible premature failure and suggested repair cost and as of his date have not been contacted by the said corporation.