One problem related to engine stall has been reported for the 2002 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Toyota Sienna based on all problems reported for the 2002 Sienna.
Engine was replaced because of an accumalation of sludge which developed in the base of the motor. Then, engine stalled. This was the third engine replacement.