Five problems related to emission control have been reported for the 2004 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Corolla based on all problems reported for the 2004 Corolla.
Contact states that there was a report on a 2004 Toyota Corolla regarding the excessive sulfur dioxide odor. Contact took the vehicle to the service dealer three times, they replaced the converter and the air filter, this did not rid the car of the smell.
Carbon monoxide is getting into the vehicle when accelerating from various speeds. The problem was reported to the dealer, and consumer will take vehicle to the dealer for inspection.
I bought a 2004 Toyota Corolla type s on December 28, 2003. I've had the car for about 2 months and have noticed an extremely horrible sulfur smell from the vehicle. I have also had the dashboard ripped apart twice, and checked for extremely loud vibrations and noise. The first time, the service department found "nothing wrong, and heard no unusual noises" and the second time, when I test drove it with the technician, they applied some foam around the wiring inside the dash. I can still hear the vibrations and noise in the dashboard whenever I am driving the vehicle.
Since I bought the car in sept 2003 it emitted a rotten egg smell through the vents. I went to arbitration in may 2004 and lost because they said that it was the design of the car. The Toyota rep said that someone wou ld be caontacting me and that they were aware of the problem. No one contacted me and the dealer would not return my calls. The 800# continued to say it was the gas. I have suffered with horrible headaches and I lost my periphial vission on three ocasions. In Feb 2005 I was pulled over sick form the odor and fi again called 800#, they again said it was the gas. I pleaded with the rep to help me and she called me back two days later with a new TSB that came out in may 2004. The dealer reprogramed the ecu and tech smelled odor so they ordered a new cat converter replaced that a reprogramed ecu again. They said it was an internal failure in my cat. If this was the case why was'nt my check engine light going off for the last year and a half? now I have an odor of bad exhaust coming through my vents and Toyota wants me to put in the same gas 4xs. I don't feel safe in this car and I can';t imagine what driving with a bad cat for over a year has done to my health and my engine. I have asked Toyota to issue me a letter saying that the car is safe since I transport children but they refused.
2004 Corolla: emission of hydrogen sulfide gas from exhaust system.