NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
75 reportsClear category filterMileage unknown · May 4, 2004
Engine And Engine Cooling
IN DECEMBER OF 2002, WE PURCHASED A 2003 TOYOTA 4RUNNER SPORT. ALMOST IMMEDIATELY WE NOTICED A STRONG SULPHUR SMELL LEAKING INTO THE CABIN WHEN THE VEHICLE WAS IN MOTION. WE TOOK IT TO BACK TO PEFORMANCE TOYOTA WHERE WE PURCHASED IT AND HAD IT CHECKED OUT. THE MAINTENANCE MANAGER SAID THAT THE VEHICLE CHECKED OUT FINE, HANDED US…
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IN DECEMBER OF 2002, WE PURCHASED A 2003 TOYOTA 4RUNNER SPORT. ALMOST IMMEDIATELY WE NOTICED A STRONG SULPHUR SMELL LEAKING INTO THE CABIN WHEN THE VEHICLE WAS IN MOTION. WE TOOK IT TO BACK TO PEFORMANCE TOYOTA WHERE WE PURCHASED IT AND HAD IT CHECKED OUT. THE MAINTENANCE MANAGER SAID THAT THE VEHICLE CHECKED OUT FINE, HANDED US A COPY OF A SERVICE BULLETIN #EG003-03 AND SUGGESTED WE CHANGE GAS. WE TRIED EVERY GAS AT EVERY GAS STATION WE COULD FIND AND IT ONLY GOT WORSE. MY WIFE HAD BEEN USING THE VEHICLE TO CAR POOL OUR TWO DAUGHTERS, ALONG WITH OTHER CHILDREN, HOME FROM SCHOOL. ONE OF THE CHILDREN GOT PHYSICALLY ILL (WE LATER FOUND OUT THAT HE SUFFERS FROM MIGRAINS, AND THE ODOR WAS TRIGGERING HIS ATTACTS), SO WE HAD TO PULL OUR DAUGHTERS OUT OF THE CAR POOL. IN ORDER TO LIMIT MY DAUGHTERS' EXPOSURE TO SULPHUR DIOXIDE, I AGREED TO USE THE TOYOTA AND LET MY WIFE USE MY DAKOTA TO TAKE THE GIRLS TO/FROM SCHOOL (IT DOESN'T STINK). AFTER DRIVING THE TOYOTA TO WORK FOR CLOSE TO A YEAR NOW, I HAVE EXPERIENCED HEALTH PROBLEMS AND HAVE RECENTLY BEEN DIAGNOSED WITH ASTHMA BY MY PHYSICIAN (WHICH I'VE NEVER HAD BEFORE). MY ASTHMA MEDICATION COSTS ME $158 PER MONTH AND I HAVE RESEARCHED CAUSES OF ASTHMA, AND HAVE FOUND THAT THIS SULPHUR SMELL IS A POSSIBLE TRIGGER FOR IT. I HAVE SINCE PURCHASED A USED VEHICLE TO DRIVE BACK AND FORTH TO WORK, AND THE $37,000 TOYOTA SITS IN THE GARAGE BECAUSE NO ONE CAN STAND TO DRIVE IT. HELP!!!!! *AK
NHTSA ODI #10068259
15 miles · Apr 29, 2004
Engine And Engine CoolingInjury
TERRIBLE SULPHUR SMELL IN THE CABIN. WINDOWS ARE ALWAYS UP DUE TO 3 OF 4 MEMBERS HAVING ASTHMA. MAKES ALL PASSENGERS SICK TO STOMACHS AND HEADACHES. WANT FULL PURCHASE PRICE BACK FOR THIS VEHICLE. CANNOT DRIVE ANYLONGER. VERY UPSETTING FROM A TOYOTA PRODUCT. HAVE BEEN TO DEALER 3 TIMES.
NHTSA ODI #10068050
Mileage unknown · Apr 20, 2004
Engine And Engine Cooling
AFTER A FEW WEEKS OF OWNERSHIP THE CONSUMER NOTICED THAT THE CABIN WOULD FILL UP WITH SULFUR DIOXIDE FUMES. *PH THESE FUMES HAVE CAUSED RESPIRATORY ISSUES FOR THE CHILDREN THAT RIDE IN THE VEHICLE. *NM
NHTSA ODI #10071546
Mileage unknown · Apr 15, 2004
Engine And Engine Cooling
ROTTEN EGG/SULFUR SMELL/EXHAUST ENTERING CABIN OF VEHICLE EVEN IF WINDOWS ARE UP.HAVE HAD PROBLEM SINCE PURCHASE OF VEHICLE IN AUG,2003. *AK
NHTSA ODI #10066218
1 miles · Apr 14, 2004
Engine And Engine Cooling
I HAVE BECOME RATHER FED UP WITH THE SULFUR SMELL PROBLEM ON MY 03' V8 4RUNNER. I HAVE READ NUMEROUS COMPLAINTS HERE, EDMUNDS, AND OTHER WEBSITES ON THIS TOPIC AND SEE ANECDOTAL EVIDENCE OF SOME PEOPLE PURSUING LEGAL RECOURSE. OTHER THAN ONE SPECIFIC CASE IN FLORIDA, I CANNOT FIND ANY OTHER EVIDENCE OF SUCCESSFULLY MAKING A LEMO…
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I HAVE BECOME RATHER FED UP WITH THE SULFUR SMELL PROBLEM ON MY 03' V8 4RUNNER. I HAVE READ NUMEROUS COMPLAINTS HERE, EDMUNDS, AND OTHER WEBSITES ON THIS TOPIC AND SEE ANECDOTAL EVIDENCE OF SOME PEOPLE PURSUING LEGAL RECOURSE. OTHER THAN ONE SPECIFIC CASE IN FLORIDA, I CANNOT FIND ANY OTHER EVIDENCE OF SUCCESSFULLY MAKING A LEMON LAW CASE WITH THE SULFUR SMELL PROBLEM. I AM IN KANSAS AND HAVE BEEN INSTRUCTED BY TOYOTA THAT I HAVE TO GO TO ARBITRATION.....AND IF I AM NOT MISTAKEN, THIS IS ALSO REQUIRED PRIOR TO ATTEMPTING A LEMON LAWSUIT. I HAVE THREE KIDS, ONE OF WHICH HAS A SULFUR ALLERGY IN ADDITION TO MY WIFE HAVING A DOCUMENTED ALLERGY. FRANKLY, I HAVE BEEN NAUSEATED BY THIS SMELL ON A NUMBER OF INSTANCES. NOW AT 10 MOS. OF OWNERSHIP, 7500 MILES, TRYING EVERY GRADE AND BRAND OF GAS REASONABLY AVAILABLE, 2 DEALER COMPLAINTS, AND 2 TOYOTA CORPORATE COMPLAINTS....I AM NOT ONLY DISAPPOINTED AT TOYOTA'S SHIFTING OF BLAME....BUT NOW I AM AT A LOSS ON WHAT CAN BE DONE TO HAVE TOYOTA RECOGNIZE AN OBVIOUS DESIGN FLAW IN THE CURRENT 4RUNNER MODEL. TOYOTA BLAMES THE PROBLEM ON BAD GAS....DON'T THINK SO...I HAVE TRIED EVERY GRADE FROM EVERY STATION NEAR MY HOUSE. IT HAS BEEN HAPPENING SINCE DAY 1 OF OWNERSHIP. HAVE I RESEARCHED THIS TO FIGURE OUT WHY IT HAPPENS....ABSOLUTELY. WHEN TOYOTA SAYS IT IS NOT THEIR FAULT.....I GUESS I WONDER WHY THEY DESIGNED THE VEHICLE TO HAVE REAR VENTS THAT PULL EXHAUST GAS INTO THE CABIN. THIS IS EXACTLY WHY IT HAPPENS. HERE IS MY POINT....SULFUR SMELL FROM THE EXHAUST...OK, I'M GOOD WITH THAT. THIS IS THE CASE WITH THE HIGHER SULFUR CONTENT MIXES THAT ARE CURRENTLY AVAILABLE. BUT SHOULD IT BE REASONABLE THAT I HAVE TO INHALE IT INSIDE THE CABIN? NOW HOW IS THAT THE FAULT OF THE GASOLINE INDUSTRY.....DOES THAT HAVE ANYTHING TO DO WITH THE SULFUR CONTENT OF THE LOCALLY AVAILABLE GASOLINE? FURTHERMORE, IF I AM SMELLING SULFUR.....I AM ALSO INHALING CARBON MONOXIDE....GEE, THAT SEEMS REAL HEALTHY. PLEASE HELP.
NHTSA ODI #10066144
Mileage unknown · Mar 23, 2004
Engine And Engine Cooling
STRONG SULFUR SMELL WILL DRIVING THE CAR, THE SMELL IS STRONG AND TIMES CAN BE HARD TO BREATH. THE SMELL DOES DEFINITELY ORGINATE FROM MY 2003 FOURRUNNER.*AK
NHTSA ODI #10063687
Mileage unknown · Mar 14, 2004
Engine And Engine Cooling
SULFER EXAUST FUMES ENTERING CABIN. OCCURS AT VARIOUS TIMES. SPOKE TO DEALER AND MANUFACTURER; BOTH BLAME GAS. MY CONCERN IS THAT THE FUMES ARE GETTING INTO THE CABIN AREA.*AK
NHTSA ODI #10062168
38,000 miles · Jan 15, 2004
Engine And Engine Cooling
MY NEW FORERUNNER HAS 60000 KM(LOTS OF HIGHWAY DRIVING) ON IT AND IS EXPERIENCING THE SAME PROBLEMS DOCUMENTED BY SO MANY OTHERS. I USUALLY HAVE A FRIEND OF MINE DO THE OIL CHANGES AND THEREFORE DO NOT HAVE DOCUMENTATION OF THE DETAILS. THIS INITIAL PROBLEM AROSE ON A WEEKEND. I CONTACTED MY DEALER AND THEY COULDN'T GET ME IN …
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MY NEW FORERUNNER HAS 60000 KM(LOTS OF HIGHWAY DRIVING) ON IT AND IS EXPERIENCING THE SAME PROBLEMS DOCUMENTED BY SO MANY OTHERS. I USUALLY HAVE A FRIEND OF MINE DO THE OIL CHANGES AND THEREFORE DO NOT HAVE DOCUMENTATION OF THE DETAILS. THIS INITIAL PROBLEM AROSE ON A WEEKEND. I CONTACTED MY DEALER AND THEY COULDN'T GET ME IN FOR A WEEK. THEY TOLD ME TO GET THE ENGINE FLUSHED IMMEDIATELY AT A JIFFY LUBE(OR THE LIKE). I DID SO AND THAT IS WHEN I STARTED SEEING SMOKE AND HAVING THE ENGINE EITHER JERK OR NOT RESPOND AT ALL. WHEN THE DEALER FINALLY HAD A LOOK AT IT HE TOLD ME I HAD NEGLECTED THE ENGINE AND HE WOULD NOT GO ANY FURTHER UNTIL I AGREED TO PAY (NO PRICE OFFERED AS OF YET, ALTHOUGH HE DID SAY THAT IT WOULD PROBABLY BE AT LEAST A PISTON RING JOB, POSSIBLY AN ENGINE). HE ALSO ACCUSED ME OF PUTTING IN A NEW OIL FILTER TO HIDE A PROBLEM. YOU CAN ONLY IMAGINE HOW USELESS AND PATHETIC THAT MADE ME FEEL. I PREVIOUSLY OWNED A '99 FORERUNNER(PURCHASED NEW AS WELL) AND HAD NOT EXPERIENCED ANY PROBLEMS AT ALL. I LIKED IT SO MUCH I CONVINCED BOTH MY SISTER AND PARENTS TO PURCHASE TOYOTA'S! I SUPPOSE MY FIRST QUESTION IS WHETHER OR NOT YOU HAVE SEEN ANY ISSUES REGARDING THIS MODELS ENGINE. I HAVE SEEN NOTES DOCUMENTING THE 2002 FORERUNNER 2.2(4 CYLINDER), 3.0 AND 3.6 LITRE V6, BUT NOT THE 3.4 LITRE(WHICH IS WHAT I BELIEVE MINE TO BE). AT THIS POINT IN TIME TOYOTA HAS NOT CALLED BACK TO LET ME KNOW WHAT THEY WILL DO AND FOR HOW MUCH, BUT HAVE SUGGESTED IT WILL NOT BE COVERED UNDER WARRANTY.
NHTSA ODI #10071351
Mileage unknown · Jan 15, 2004
Engine And Engine Cooling
MY PROBLEM DATES BACK TO 8-9 MONTHS AGO. I BOUGHT MY 4RUNNER IN NOV.2002, BRAND NEW. AFTER A COUPLE OF MONTHS MY CAR STARTED TO MAKE THIS SULFER/AMMONIA SMELL, EVERY DAY, EVERY TIME I ACCELERATE OR GO UP A HILL. I HAVE BROUGHT IN THE CAR 4-5 TIMES TO VARIOUS DEALERS, EVERYONE SAID THERES NOTHING WRONG, FINALLY TOYOTA ESCONDIDO S…
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MY PROBLEM DATES BACK TO 8-9 MONTHS AGO. I BOUGHT MY 4RUNNER IN NOV.2002, BRAND NEW. AFTER A COUPLE OF MONTHS MY CAR STARTED TO MAKE THIS SULFER/AMMONIA SMELL, EVERY DAY, EVERY TIME I ACCELERATE OR GO UP A HILL. I HAVE BROUGHT IN THE CAR 4-5 TIMES TO VARIOUS DEALERS, EVERYONE SAID THERES NOTHING WRONG, FINALLY TOYOTA ESCONDIDO SMELLED THE SMELL AND INFORMED ME THAT TOYOTA IS WELL AWARE OF THE SITUATION BUT THERES NOTHING THEY ARE GOING TO DO ABOUT IT. I HAVE NOT HAD TO SPEND ANY $ YET, BUT THE SMELL IS ENOUGH TO DRIVE YOU CRAZY. I AM SHOCKED THAT TOYOTA IS TAKING THAT APPROACH. I PAY WAY TOO MUCH FOR MY 4 RUNNER TO BE SO UNHAPPY!!!!! PLEASE HELP!!!!!!
NHTSA ODI #10070990
12 miles · Jan 15, 2004
Engine And Engine Cooling
DEAR AUTO SAFETY, I PURCHASED A 2003 TOYOTA 4 RUNNER IN NOVEMBER 2002. THIS VEHICLE OMITS A SULFUR SMELL THAT IS EASILY DETECTABLE AND HORRIBLE TO HAVE TO SMELL WHEN DRIVEN. IT PLAIN STINKS. IT STINKS WITH ALL WINDOWS UP. IT STINKS WORSE WITH THE SIDE WINDOWS OR SUNROOF OPEN. I COMPLAINED TO THE DEALER THE DAY AFTER PURCHASING …
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DEAR AUTO SAFETY, I PURCHASED A 2003 TOYOTA 4 RUNNER IN NOVEMBER 2002. THIS VEHICLE OMITS A SULFUR SMELL THAT IS EASILY DETECTABLE AND HORRIBLE TO HAVE TO SMELL WHEN DRIVEN. IT PLAIN STINKS. IT STINKS WITH ALL WINDOWS UP. IT STINKS WORSE WITH THE SIDE WINDOWS OR SUNROOF OPEN. I COMPLAINED TO THE DEALER THE DAY AFTER PURCHASING THE VEHICLE. I HAVE BROUGHT THE 2003 4RUNNER TO THE DEALER NUMEROUS TIMES AND EMAILED COMPLAINTS ABOUT THE SULFUR SMELL TO TOYOTA USA TO ADDRESS THE FACT EMMSSONS WERE ENTERING THE CABIN. I EVEN MET WITH A REGIONAL TECH FROM TOYOTA USA ON TWO OCCASIONS. EACH TIME TOYOTA FAILED TO REMEDY THE PROBLEM OF EMISSIONS ENTERING THE CABIN OF THE 2003 4RUNNER. THE SULFUR SMELL BEING OMITTED INTO THE THE CABIN IS AWEFUL TO BREATH FOR NOT ONLY MYSELF, BUT ANYONE ELSE TRAVELING WITH ME. I HAVE NO IDEA WHAT HEALTH HAZARD THE SULFUR SMELL POSES OR WHAT OTHER EMISSIONS MUST BE ENTERING THE CABIN. I HAVE BEEN COMPLAINING TO TOYOTA FOR ALMOST ONE YEAR ABOUT THIS PROBLEM, AND RECENTLY I LEARNED THE ISSUE OF EMISSIONS ENTERING THE CABINS OF OTHER THE 2003 4RUNNER IS BEING WIDELY REPORTED BY OTHER 2003 TOYOTA 4RUNNER OWNERS. TOYOTA HAS FAILED TO REMEDY THIS DESIGN DEFECT WITH ME, OR ADDRESS THE HEALTH/SAFETY ISSUE OF EMMISSIONS ENTERING THE CABIN WITH ME. THE 2003 TOYOTA 4RUNNER IS DEFECTIVE AND SHOULD BE RECALLED TO EFFECTIVELY CORRECT THE FACT THAT EMISSIONS ARE ENTERING THE CABIN OF THE VEHICLE. IN ADDITION, TOYOTA HAS BEEN FIRM IN THEIR POSITION THAT THE VEHICLE IS OPERATING CORRECTLY, THEY ARE COVERING UP A KNOWN DEFECT AND NEED TO BE HELD ACCOUNTABLE. I WOULD APPRECIATE THE HELP OF AUTO SAFETY IN BRINGING THIS TO THE ATTENTION OF TOYOTA AND TO ANY OTHER AGENCY THAT SHOULD BE INVOLVED IN ORDER FOR TOYOTA TO ACKNOWLEDGE AND ACCEPT THE RESPONSIBILTY TO CORRECT THE KNOWN DEFECT OF EMISSIONS ENTERING THE CABIN OF THE 2003 TOYOTA 4RUNNER. THANK YOU AND BEST REGARDS, BILL VALENTINE.
NHTSA ODI #10070848