05-17-2010, 10:52 AM
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#1
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Join Date: Apr 2010
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Rotten Egg smell
I went 5 pages deep to see if this topic was discussed recently and couldn't find a thread; thus this one.
When I accelerate "quickly" (up to 3k RPM's) and my windows are down, I get a horrible smell (like rotten eggs) that fills the cabin. I have about 750 miles on my 2010 T4R.
Is anyone else having this issue?
Are there any fixes?
Is it something I should take to the dealer?
Etc.
Thanks!
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05-17-2010, 10:55 AM
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#2
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I haven't noticed this on mine yet. I'm at 1,200 miles. I've had it on other cars though and I've smelled it on cars I've been behind.
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05-17-2010, 11:02 AM
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#3
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You'll usually get this smell when the rear window is down. The exhaust I guess gets sucked into the car. I guess it happens to almost all 4runner's, if the rear window is down. I've smelt is a few times myself when I'm accelerating up hill on the freeway.
nathan
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05-17-2010, 02:32 PM
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#4
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Addressed several times... Search this Forum for "egg".
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05-17-2010, 03:05 PM
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#5
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Junior Member
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Join Date: Apr 2010
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Thanks to those with helpful comments.
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05-17-2010, 04:17 PM
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#6
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Join Date: Feb 2010
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Yea its a sulfur smell that rolls in the back window when you have it opened....it kinda sucks but only last for a few seconds....your from harrisburg?? Im just above harrisburg in Halifax....small world dont see too many other 4Runners around here yet!
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05-17-2010, 11:14 PM
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#7
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I get that smell too when driving the LS460. Took it to the dealer and they couldn't get it to do it.
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05-17-2010, 11:32 PM
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#8
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Quote:
Originally Posted by lexwoody
I get that smell too when driving the LS460. Took it to the dealer and they couldn't get it to do it.
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Of course they couldn't. Standard
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07-12-2010, 02:34 PM
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#9
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This was an issue with the 4th gens as well. There is a TSB but it just reduces the smell, and won't get rid of it. Best way to stop the smell is make the tips go out the side of the truck instead of backwards.
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07-12-2010, 03:08 PM
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#11
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Quote:
Originally Posted by BlueBelt
I went 5 pages deep to see if this topic was discussed recently and couldn't find a thread; thus this one.
When I accelerate "quickly" (up to 3k RPM's) and my windows are down, I get a horrible smell (like rotten eggs) that fills the cabin. I have about 750 miles on my 2010 T4R.
Is anyone else having this issue?
Are there any fixes?
Is it something I should take to the dealer?
Etc.
Thanks!
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It's normal.
Quote:
"It's (the smell) hydrogen sulfide or H2S. It does not exist in the fuel or oil, which is why you can't smell it at the gas station. It does, however, come from the gasoline. Almost all gasoline contains organic sulfur compounds with sulfur levels ranging from 30 to 100 parts per million, approximately.
"As the fuel burns, the organic sulfur compounds break down into simpler compounds. If the engine is running lean (more air than is needed to burn the fuel), the sulfur is likely to be SO2, or sulfur dioxide. The catalytic converter can change this into SO3 (sulfur trioxide), which then reacts with the catalyst to form sulfates on the catalyst. Over several minutes there is a build up of sulfates. If the engine suddenly starts to run rich (not enough air to burn all the fuel), such as when you stop at a red light, climb a steep hill, or brake hard to slow down, the chemistry changes. Now the sulfates are unstable and they react to form hydrogen sulfide, which is expelled from the exhaust pipe all at once. The high concentration is the reason for the bad smell! This effect is a common problem with new vehicles because the catalyst is working at a very high efficiency. However, as the catalyst gets older, the activity drops. Fortunately for us, one of the first reactions to be affected is the formation of hydrogen sulfide. So as the catalyst gets older, the smell will go away. It should also be noted that many catalysts never smell bad. One reason might be because the vehicle doesn't run lean for much of the time, or perhaps the catalyst has an extra component that reduces the production of hydrogen sulfide.
...
Thanks to this month's Whizard, Dr. Gordon Bartley, a senior research scientist in the Emissions Research Department of the Automotive Products and Emissions Research Division. Bartley specializes in the development, aging, and evaluation of vehicle emission catalysts.
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07-12-2010, 03:34 PM
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#12
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I work in Harrisburg where'd you pick up your 4Runner. Jus curious.
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07-19-2010, 02:38 AM
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#13
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I drive around with the window down all the time because I like to air out the dog farts, and I have yet to smell this egg smell. I'm in So cal though. Maybe it has to do with climate?
And no, my dog farts cant compare to the egg smell. They are more grainy than anything.
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07-19-2010, 09:12 AM
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#14
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Quote:
Originally Posted by reklov
...And no, my dog farts cant compare to the egg smell. They are more grainy than anything...
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 thanks for sharing.
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07-19-2010, 09:54 AM
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#15
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Quote:
Originally Posted by reklov
I drive around with the window down all the time because I like to air out the dog farts, and I have yet to smell this egg smell. I'm in So cal though. Maybe it has to do with climate?
And no, my dog farts cant compare to the egg smell. They are more grainy than anything.
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I believe california has less sulfur in its fuel compared to the east coast. Someone correct me if that isn't the case anymore.
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