Two problems related to emission control have been reported for the 2003 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Tundra based on all problems reported for the 2003 Tundra.
Frame and rear end banjo housing rotted to the point where gear oil from rear end leaked out onto the road. Had to have vehicle towed to garage to make temporary repairs. In addition, frame is disintegrated with pieces falling to the ground. Taken to an independent garage and was told to take truck to Toyota and both the rear end assembly and frame should be replaced. Garage, stewart's of georgetown, MA. , states metal of frame has deteriorated to the point where you could poke holes in it with a screw driver. Frame examined on August 6, 2011 after pieces of frame found under the truck after labor day weekend. Truck has 40,700 miles on the odometer and used to deliver and pick up supplies for property owned. The consumer to date, he has been unable to locate a usable rear end assembly. The consumer believe the failure was directly related to the use of reprocessed metal in the manufacturing, together with the failure to properly treat exposed metal parts with corrosion resistant compounds. The consumer stated after the vehicle was returned to him. The check engine light illuminated. The vehicle was taken to an independent repair shop where it was necessary to replace the oxygen sensor that had been previously replaced in August 2007. Updated ivoq 12/01/11.
Engine light on. I have taken in 3 times. Unknown cause/emission system or fuel system. Engine has 2206 miles on it.