Three problems related to engine exhaust system have been reported for the 2004 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Sienna based on all problems reported for the 2004 Sienna.
Engine code p2241 come on several times. Toyota should cover this under emission warranty. It happen 3 times, in 07/10/2007, then in 2008 and now again.
: the contact stated while driving out of a driveway at 5 mph, the vehicle stalled when acceleration was attempted. The engine warning signal illuminated. The problem had reoccured frequently at any speed. The dealership was not able to duplicate the defect in nine times the vehicle had been taken to correct the problem. The contact decided to obtain a second opinion from an independent certified mechanic who observed the coil ignition assistance burned out and the fifth cylinder was misfiring. The second opinion was ratified by another dealership. The contact expressed the dealership delayed the required repairs until the vehicle remaining warranty were exhausted. The dealership was now ready to make the repairs.
There is a sour smell (sulfur-like) coming from under the car. Dealer told us it is a problem with the catalytic converter, but as of 1/25/04, they don't have a fix for it. Said Toyota is aware of the problem. I would like to know what the problem is and when it will be fixed. This not only is polluting the air, but also could pose as a health hazard for those in and around the car.