2003 Toyota 4Runner Catalytic Convertor Problems
- 13
- Owner complaint records in our dataset
Records are owner complaints, not a measured failure rate.
Owner complaint recordsComplaint records reflect reports in our dataset and do not measure how frequently the problem occurs across all vehicles.
Mileage in stored records
| Band | Records |
|---|---|
| 1–30k mi | 5 |
Complaint records
Owner-submitted complaint content, presented as stored.
Catalytic Convertor · Pedals And Linkages
Dt*: the contact stated while driving 40 mph uphill, a strong odor was noticed. There were no warning lights illuminated prior to the incident. The dealership was contacted, who determined the catalytic converter was producing the odor. The extended warranty covered the replacement. Also, the contact was alerted by an independent mechanic about the front brakes. The mechanic machined the front rotors and installed…
ODI 10175810
Catalytic Convertor
I own a 2003 toyota 4runner and have been experiencing the sulfur/rotten egg smell for several months. It is intermittent and seems to occur most frequently upon acceleration. The smell can get quite bad at times, and has caused my eyes to burn and other passengers to feel nauseous. My 3 year old son has complained several times that it makes his tummy hurt. Taking it in to toyota has not helped - they state that…
ODI 10093942
Catalytic Convertor
Engine compartment fills with smell of rotten eggs even with windows up and air conditioning on, very unpleasant.*ak
ODI 10033404
Catalytic Convertor
I have a 2003 toyota 4 runner. I purchased the vehicle 1 1/2 months ago and currently have 3000 miles on the vehicle. When i have the rear window down i smell a strong odor. The odor has an acid ammonia like smell. The odor is so strong at times that it takes my breath away. At times, the odor also enters my vehicle when my windows are rolled up. The stench is so strong that passengers in my car have noticed it…
ODI 10041360
Catalytic Convertor
Car emits a sulfur type smell, whether ventalation system is on or not, and whether windows are up or down. Smell is noxious and makes me feel ill. Has happened at least 10-15 times over the course of 5 months with this vehicle.*ak
ODI 10050883
Catalytic Convertor
Rotten egg sulfur smell in my 2003 toyota 4 runner. Very bad when any window is down, just bad when all windows are up. Dealer suggested different gas(didn't work), and replaced catalytic converter (didn't work). This problem is giving me and my family headaches while riding in the vehicle. *nm
ODI 10093754
Catalytic Convertor
Exhaust fumes apparently entering cabin of vehicle. Smell of sulfur very strong even when all windows are up. *jb
ODI 10016415
Catalytic Convertor
Exhaust system emits a sulphur smell that comes into the seating area
ODI 10124959
Catalytic Convertor
Passenger compartment fills with exhaust fumes (rotten egg smell) mainly when in motion with the back window down. *jb
ODI 10018637
Catalytic Convertor
While driving moderate to heavy acceleration with all windows up and internal air circulation there is a strong rotten egg/sulfur type smell??? This is on a 2003 limited 4-runner bought new in maryland;darcars;this is very irritating and makes my kids 10yrs and 11 yrs. Old sick. Very confused what is causing this??????? Please help..*jb
ODI 10041423
Catalytic Convertor
The exhaust smell from the truck has a horrific and sickening smell. I have not been driving the vehicle due to this issue. It has made me sick to my stomach at times and my wife and kids can not stand the continuous smell either. I am very upset with this and would like a refund of my purchase price. Toyota sent out a tsb regarding the smell saying it was the gasoline (poor) that people use. Wrong! I use amoco and…
ODI 10020933
Catalytic Convertor
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…
ODI 10068259
Catalytic Convertor
I own a 2003 toyota 4 runner purchased in october of 2002. It emits a horrible rotten egg/sulphur smell into the cabin, windows up or down. Has given my passengers headaches and nausea. Tried the recommended gas upgrades, nothing works. This is a defect. Toyota should be made accountable.*ak
ODI 10053219