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Sulfur Smell from Toyota 4Runner

862 messages,  Last post on Aug 20, 2009 at 3:48 PM

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What is this discussion about? Toyota 4Runner, Engine, Exhaust, Fuel System, SUV

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#642 of 862 The sweet smell of sulfur by martin45 Jan 18, 2004 (3:39 pm)
Ah, the sweet smell of sulfur. If you read these posts and still decide to buy this vehicle, you will get exactly what you deserve; garbage.
#643 of 862 What's the odds? by rogers12 Jan 18, 2004 (9:26 pm)
What are the odds of getting a bad-smelling vehicle? The vocal few would have you believe they are typical. Not true. There are only a few posters with bad vehicles here out of thousands of new 4Runners sold.   Test drive your vehicle and see if it has a bad smell. If it does, don't buy it. Bet it doesn't.   Buy a vehicle without a test drive and you get what you get.
#644 of 862 No problem here by nedzel Jan 19, 2004 (4:15 pm)
I've put about 6,000 miles on my 2003 4WD V8 4Runner. I've had a mild smell of sulfur on a couple occasions. YMMV.
#645 of 862 2003 4 runner v6 by xgrid Jan 20, 2004 (7:08 am)
I also get the sulfur smell on my 2003 v6 4-runner. The car is at 5300 miles and I get the smell on Hess, Exxon, and Mobil. I almost always use premium unleaded, but have switched to mid and low to check if it helped with no difference other than a slight loss of power.   Granted, its not as bad as some of the owners, but its still annoying. I usually keep the back window shut during driving and leave the ac on (recirc off)and this seems to prevent the smell from entering the cabin (most of the time). I usually end up gagging if I have to go take something from the rear after stopping.   I have been considering a tail pipe extension. rcgator, Thank you for posting that it has not worked. I can avoid wasting my time and money.
#646 of 862 re: 2003 4 runner v6 by xgrid by highlander7 Jan 20, 2004 (6:53 pm)
Maybe the problem is the manufacturer of the fuel.   I have driven 2150 miles using Amoco Ultimate 93 and Sunoco Ultra 94 with no problems. Amoco Ultimate has 30 ppm sulfur content, not sure what Sunoco is but understand it also has a very low content vs. the other brands.   I used Mobil and Exxon in my 2002 4Runner and never had a problem with odor. After reading the negative posts in this forum and discussing with various owners I decided after purchasing my 04 Runner that I would use a low sulfur grade gas. Now that I have broken in my truck with known low sulfur grade gas I may try (test) a couple of tankfuls of Mobil or Exxon. My wife uses Mobil in her Avalon with no problems, not sure if my ultra low emission 4Runner will act the same with Mobil?   If you do change brands it may take a few tankfuls to eliminate the odor. It may be worth a try, sure hope this works!
#647 of 862 Tail Pipe Extension by rogers12 Jan 20, 2004 (10:05 pm)
I believe the tail pipe extension is a possible fix for those getting exhaust into the passenger compartment, not for eliminating the exhaust smell. The exhaust smell is a problem related to the catalytic converter and the sulfur content in gasoline.   As far as eliminating the odor by changing to low-sulfur gasoline, running the truck on the highway with some decent acceleration bursts will go along way toward cleaning the catalyst.
#648 of 862 Good feedback by jjenkens Jan 20, 2004 (11:02 pm)
This is all very good feedback. Like many others, I've read all of this stuff on the sulfer odor for the past several months straight. Regardless, I like the vehicle and ordered my 4Runner last week and it will be in the dealership later this week. It's a V8 Limited. I'm honestly still a bit nervous about receiving one of the vehicles that may have that problem. From what I've read though, some people who have experienced it have had it go away on its own after several thousand miles and some have switched gas and it has gone away. That's what I'm hoping for.   Ironically, tonight I jumped on the highway and got a whiff of exactly that smell. I looked in front of me, gunned it and caught up to the vehicle that was entering the highway in front of me.. to my dismay, it was a 4Runner. Hopefully not a bad omen.
#649 of 862 rogers12 re: tail pipe extension by rcgator Jan 21, 2004 (9:01 am)
Tried it. Exhaust is still getting in the cabin. Also, if this were such a non-issue Toyota certainly would not be gearing up to change some major parts on these vehicles. Look for this to happen early this year.   xgrid, I can't say for sure if the extension never works, but it did nothing for us.
#650 of 862 Gearing up? by jjenkens Jan 21, 2004 (10:16 pm)
What have you heard regarding Toyota gearing up for major parts changes on 4Runners? I haven't heard of or seen this..
#651 of 862 Thanks for trying the tailpipe extension by corancher Jan 21, 2004 (11:19 pm)
rcgator, I wanted to say thanks for trying out the tailpipe extension. I was one of those who suggested and discussed it, and was frustrated that we didn't have much real experimentation to go on.   BTW, can you say any more about your experience? Did the extension change the intensity or frequency of the odor inside? Do you have any idea how long the extension was, and whether it now goes out the side or still to the rear?   Thanks again for making the attempt.

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