One problem related to axle shaft seal has been reported for the 2003 Chevrolet Monte Carlo. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Monte Carlo based on all problems reported for the 2003 Monte Carlo.
While driving the car to work, heard a clunk-grind sound on a right turn. Drove to work anyway on the freeway - about 15 minutes. When pulling into my parking spot, turning right, the clunk-grind sound appeared again and then just made a grinding sound. After having the car towed to a chevy dealer, was told it was a broken right-front axle. The dealer is currently repairing, but the car is less than two full years old and has only 41,500 miles. I called chevorlet customer service and they are picking up almost 50% of the $600 repair bill. Thank goodness this didn't break while I was driving 75 mph. On the freeway!.