Two problems related to engine have been reported for the 2004 Chevrolet Aveo. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Aveo based on all problems reported for the 2004 Aveo.
Engine destroyed by timing chain failure. Timing chain failure resulted in damaged pistons and valves. Vehicle had 95,000 miles on it.
Fuel injector stuck open making a loud tick. Gm told me it was a lifter engine is dohc.