One problem related to engine belts and pulleys has been reported for the 2002 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Toyota Corolla based on all problems reported for the 2002 Corolla.
Changed design from timing chain to belt 2 months after release. Bolt attaching timing chain sprocket to cam shaft overtightened at factory causing thousands of dollars of damage to cam timing chain and sprocket and several other parts, and leaving me stranded in a national forest 45 miles from nearest services with no cell phone reception.