Last post on Nov 27, 2011 at 6:41 AM
You are in the Toyota 4Runner
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Toyota 4Runner, Engine, Exhaust, Fuel System, SUV
#861 of 874 2008 4Runner Limited - Terrible sulfer smell
Aug 19, 2009 (8:31 pm)
I see from the previous post that this is not the first time Toyota has had a problem with their CC's. I bought a new (08) toyota 4runner Limited V8 in March with 13 miles, now has about 11K. She had her first oil change after 5000 miles (as recommended by the dealer) then a month or two later I noticed something strange. When I go from slow to fast at a moderate pace (passing cars, cruise control engaging on a hill, merging from off ramps onto highways, etc.) I get a foul stench inside my car that smells like a mix of ammonia and sulfur. For those who are really quick you put those together to equal pee and poopie. The smell is terribly strong at first then eventually goes away.....until I need to accelerate quickly again.
I have tried various scenarios like accelerating with the AC and the re-circulate on and accelerating with the AC on and the re-circulation off. I have also tried both previously mentioned methods with the AC off. Windows open, windows closed, you name it..I've tried it. I mentioned it to my mechanic before her recent 10,000 oil change, when I picked her up he said everything he checked the exhaust and everything was okay.
Has anyone had any luck having the dealers remedy this since the last post? I'm due for an inspection in September, if I point my mechanic in the right direction, he sees a problem, is there a chance it won't pass? If it does, I was planning on bringin the failure slip to the dealer. Any info would be greatly appreciated. Thanks!!
#862 of 874 Re: 4Runner sulfur smell [des19554]
Aug 20, 2009 (3:48 pm)
I seem to remember reading my owners manual that it cautions against driving with the rear window open because of fumes entering the cabin. We have a 07 sport edition with V8 and have never noticed sulfur smell.
good luck with resolving the problem.
#863 of 874 Thinking about purchasing a 4Runner
Jan 27, 2010 (9:06 pm)
A while back I had owned a 1997 4Runner that I absolutely loved and now am thinking about buying another one because I need to get something with a V8 engine in it but don't want something that overly big either. However after reading many posts throughout this forum I now have definate concerns about purchasing another 4Runner. Can someone please let me know if every single year of 4Runners is experiencing the same problem. For example, I was considering maybe 2003 to 2007 but to me I believe that I read comments in this forum about every single one of those years possibly being effected by this smell. Any information/feedback would be greatly appreciated. Thanks.
#864 of 874 Re: Thinking about purchasing a 4Runner [sandalou]
Jan 27, 2010 (9:39 pm)
I read comments in this forum about every single one of those years possibly being effected by this smell.
I wouldn't be too concerned about the sulfur smell. It's not like it's persistent or choking or toxic or anything like that. Typically, you occasionally get a whiff of it then it's gone.
SUVs and Smart Shopper
#865 of 874 I think I figured it out
Jun 13, 2010 (4:04 pm)
I have a 2005 Tacoma pre runner. I have noticed the smell for about 8 months. Always a big blast of it when I first turn on the blower for air or heat. My first thought was that the AC condensation water drain was plugged. But I checked that it it was dripping fine. Looked for a bad cabin air filter but have none. This weekend, I was taking off my driver side door panel to fix the arm rest, and OMG, the smell was in the door. Does not seem to make sense cause there are drain holes at the bottom of the door, but they must have something in the door that rotts when it gets wet. I am going to air out the door panel for a while then look close for what is causing the smell in the door. It would be great to have someone else check it out. Pulling off the door is easy after removing two screws and giving it a big pull at the bottom.
#867 of 874 My Toyota Stinks Too!!
Jul 22, 2010 (6:25 pm)
Hi, I am from Malaysia and I am also facing the same problems as you guys/gals from across the globe. My 7 months old Toyota Innova (MPV) is producing excessive sulfur from the exhausts which is absorbed into the cabin. As such I have read many articles and found out that is is caused by the new catalytic converter (toyota replaced the cat converter with low nickel type). The smell will come 1) during stop and do 2) heavy acceleration.
There is nothing wrong with the air cond system; the excessive sulfur has forced its way into the air cond vent. There are 2 air cond systems in my car. The Service Centre concentrated so much on the front air cond vent that they have forgotten about the back air cond. All they are doing now is sealing the flaps (or any entries or gaps). Toyota is aware of their problem as it was posted in the TOYOTA TECHNICAL SERVICE BULLETIN MAY 24, 2004 (you can type and surf the title). Camry 02-04 Camry (2AZ-FE) faced the same problem.
The only thing I am afraid is that the catalytic converter will be clogged and I will face major engine problems. I heard misfire sounds (firecracker sound) from the exhaust the last few days and there were also excessive smell outside the car. I have turned off the rear air cond at the moment and there is no smell these 2 days but I am still monitoring the car.
I'll be sending my car back to the service centre on Monday to let them seal any gaps at the back and also to check the exhaust systems. Have called a few private car service firms to find out more. Most said that only 2 parts produce sulfur 1) Over charging battery 2) the exhaust/catalytic converter.
I hope I can share my solution from a cross the globe. At least the Americans can apply the "LEMON LAW" which is not applicable in Malaysia at the moment. Sealing gaps are temporary measures; sulfur dioxide can cause respiratory problem in the long term......BUT THE MAIN QUESTION IS " WILL THE NEW CAT CONVERTER DAMAGE MY ENGINE?"
#868 of 874 Re: Thinking about purchasing a 4Runner [tidester]
Jul 22, 2010 (6:38 pm)
It is pretty persistent my dear; and the stench is not a mild one (but more like 10 people farted in your car) and I have wind down the window 2-3 times a day that would be how many times a year? multiply that for another 10 years. In the long term it will cause respiratory problems. It is really not fair to pay so much and face such a cumbersome problem from a new car. (by the way my MPV cost RM106,000.00 (USD33K).)