One problem related to tank assembly has been reported for the 2001 Toyota Avalon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Toyota Avalon based on all problems reported for the 2001 Avalon.
There was a thumping noise in rear when coming to a stop and pulling off from a stop. Gas is shifting around in gas tank. The noise was prominent. The service manager agreed that the vehicle was in need of a new tank. The order was placed for a new tank but was cancelled by a representative because it would mean that Toyota admits there is a problem with the fuel tanks on these vehicles. The problem, because the tank couldn't be replaced, became much worse. Consumer is no longer in possesion of the vehicle.