So I picked up a 2004 sedan from a good friend who got screwed by a bad repair. I fix cars on the side from my normal job as a mechanic for the United States Postal Service. Anyways he paid a guy to change his timing belt as a precaution to the dreded timing failures that can plague this awesome car! I say this with conviction due to being apprehensive at first but I plan on keeping it due to falling in love with the design of the drivetrain. Back to the story. After pulling the head I found that the person doing the repair did not tighten the water pump correctly and it slipped....... ouch but it did it at idle so a few dings on the pistons and only two mildly bent valves. Currently have the head on my kitchen table lapping the new valves....... So grand total so far............. 400 for the car and about 300 in quality parts....... I am in love with the Aveo! I have vast automotive knowledge anyone feel free to ask me anything. Super nice guy that respects others who like to work on and upgrade their vehicles.