One problem related to gasoline engine has been reported for the 2002 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Toyota Avalon based on all problems reported for the 2002 Avalon.
I bought my vehicle brand new and have had continuing trouble with what I believe to be the fuel system. Upon acceleration the car will periodically (daily) sound like it is running on diesel fuel or as if water is mixed with the gasoline. I have taken the car back to the dealer on 4 different occasions, and they have not been able to recreate the noise and, therefore, claim they cannot fix the problem.