Last post on Nov 27, 2011 at 6:41 AM
You are in the Toyota 4Runner
What is this discussion about?
Toyota 4Runner, Engine, Exhaust, Fuel System, SUV
#832 of 874 Re: Incredible [beach_girl]
Apr 22, 2006 (3:49 am)
Backing up / then "moving forward"
Some owners of Toyota vehicles may experience a sulfur like or rotten egg odor from the exhaust system. Sulfur is a natural component of crude oil from which gasoline is refined and the amount of sulfur can be decreases through the refining process. The amount of sulfur in fuel in CA is regulated, however gasoline sold in other states can have substantially higher sulfur content. Sulfur content also varies considerably between gasoline brands and locations.
A sulfur odor emitted from the vehicle tailpipe does not necessarily indicate that there is an issue with the engine’s condition, but is most likely directly related to the fuel. If the vehicle is exhibiting an excessive sulfur odor, the following checks should be performed:
If the MIL light is ON, check for DTCs and repair as necessary
If no trouble is found after performing the above check, recommend the customer try a different source of fuel.
Replacement of oxygen sensors, air/fuel ratio sensors or catalytic converters will not reduce the odor and therefore will not be considered warrantable.
That was amended with:
And for the V8 there is this:
Title: Excessive Sulfur Dioxide Odor
Models: '03-'04 4Runner (2UZ-FE)
Date: June 14, 2004
Google with the following to get a copy:
+"4Runner (2UZ-FE)" +sulfur
#833 of 874 Re: Incredible [user777]
Apr 22, 2006 (6:28 am)
Thank you very much -- next question:
my VIN# is not in that range. I have a 300 series VIN
I bought the 4Runner in VA but now live in Southern California and I still get the sulfur smell -- which I describe as an ammonia smell - it's acrid - burns my nose. My dad had a Buick Regal in the '70s that had that rotten egg smell which is different then what I'm smelling from my truck. My service advisor had the nerve to tell me to close the windows when I'm driving uphill to which I replied: then why do I have windows that open and close? so that I can keep them closed?
#834 of 874 Re: Incredible [beach_girl]
Apr 23, 2006 (4:27 am)
I believe the last TSB which I suggested you google (read and print it!) indicates that the applicable vehicles are those with that engine, V8, 2WD and 4WD which were produced BEFORE the VINs listed (the word BEFORE being important to you).
Are you sure sure your VIN doesn't fall into the range convered by the TSB? It implies that for vehicles of the provided VINs moving forward in production, there is no issue (implying they caught it and fixed it or had otherwise switched parts), but for those *BEFORE* the VINs listed, there is the issue.
OK, I'm not a VIN decoder expert. I may be wrong.
#835 of 874 Re: Incredible [user777]
Apr 23, 2006 (7:17 am)
Is there such a thing as VIN decoder expert?
OK - I re-read the printed TSB you provided and yes, I would think my 300-series VIN would come before the 400-series VIN but without my decoder ring I can't be sure.
We have a new Toyota dealership here in SoCal so maybe I will give them a call for my next service.
#837 of 874 Re: Incredible [scoti1]
Apr 25, 2006 (4:46 am)
I thought after replacing both CCs the smell of SO2 will go away, but to my surprise it is still there. I placed a call to the Toyota dealership where I had the dual CCs replaced and he told me if I still use the same gas... waiting to hear back from him if there is anything else that can be done...
My conclusion is either dealership did not do the job right or the gas brand Murphy USA is causing this issue.
Has anyone else experienced the bad smell SO2 on a 2006 4Runner LTD V8 4WD even after replacing the CCs?
#838 of 874 Re: Incredible [user777]
Apr 27, 2006 (4:59 pm)
Hi -- wanted to let you know I contacted Toyota 1-800-331-4331, and questioned them about the TSB and I was told that my vehicle does not fall within the parameters of it but they would go ahead and open a case where the dealership needs to respond to corporate within three business days. My dealership called me 4 hours later and they've ordered the new catalytic converter and will replace it once the parts have arrived. The service manager was very helpful and polite. He'll also be ordering my new visors since my 4Runner is part of Campaign 30G where certain vehicles did not receive vanity mirrors on their visors. I thought it was kind of weird there were no mirrors but I never questioned it -- but Toyota Corp in California did and now I get my mirrors -- I'm so vain!!
#839 of 874 Re: Incredible [beach_girl]
Apr 27, 2006 (6:59 pm)
well, i told you i was no VIN master!
it's nice to see the company is doing right by a good customer, vain or not.
#840 of 874 2006 4runner v6 Sulfur smell
May 01, 2006 (10:06 am)
Where do you get the TSB from? I'd like to get a copy before a go to the dealer. From reading earlier post I believe it's TSB EG004-06. Anyone have a link? The trunk only has 550 miles on it and I smell it already.