2004 Toyota 4Runner Engine

LEAKAGE OF SULFUR DIOXIDE (SO2) FUMES FROM EXHAUST INTO CABIN OF VEHICLE, SMELLS LIKE "ROTTEN EGGS." EXPOSURE TO SO2 HAS ADVERSE HEALTH EFFECTS, SOURCE EPA. I SUFFER FROM ASTHMA AND THE SULFUR FUMES CREATE SERIOUS SAFETY AND HEALTH HAZARD.

WHEN DRIVING MY 2004 TOYOTA 4 RUNNER EMITS A SULFUR LIKE ODOR. I HAVE BEEN TOLD THAT SWITCHING FUELS WILL HELP, BUT I HAVE TRIED ALL FUELS IN THE AREA OF ALL GRADES AND STILL HAVE THIS TERRIBLE SMELL. IT HAPPENS ON A REPEATABLE BASIS, MOST OF THE TIME AFTER EXITING THE FREEWAY ONTO A SURFACE STREET IS WHEN IT IS MOST NOTICEABLE.

ROTTEN EGG SMELL WHEN THE GAS PEDAL IS DEPRESSED QUICKLY FROM EITHER A STANDSTILL OR ALREADY MOVING. I'VE TRIED ALL DIFFERENT TYPES OF GAS BUT TO NO AVAIL.*AK

STEERING WHEEL AND GAS PEDAL HIGH FREQUENCY VIBRATION WHEN ACCELERATING AT 1500 RPM TO 1800RPM (IN VARIOUS SPEED). I HAD TAKEN THIS CONCERN TO MY LOCAL TOYOTA DEALER. THE DEALER SERVICE WAS GOOD, BUT NO SOLUTION PROVIDED. THE REASON WAS "ALL 4 RUNNER V8 4X4 DO THIS, AND THERE IS NO TSB SOLUTION FOR IT". I HAVE SEEN COMPLAINS ABOUT THIS ANNOYING VIBRATION IN '03 AND '04 4RUNNERS IN VARIOUS PLACE - EDMUNDS.COM, THIS SITE, AND ETC. SHOULD TOYOTA CONSIDER THIS A DEFECT OF THE VEHICLE AND PROVIDE A SOLUTION?*AK

STEERING WHEEL AND PEDALS VIBRATE IN 1600-2000 RPM RANGE AT VARIOUS SPEEDS. *LA