One problem related to automatic transmission torque converter has been reported for the 2005 Chevrolet Colorado. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Chevrolet Colorado based on all problems reported for the 2005 Colorado.
Input housing shaft splines in torque converter was worn out after 44,000 miles, was replaced and was worn out again at 79,000 miles. After 35,000 mile, I believe this is a manufacturer defect or they are using a metal that should not be used for tension.