sulfur smell

[redalert]

When I start my truck in the morning and go to work a half mile away and turn the truck offi get a sulfer (rotten egg) smell in the cab. My truck is a 06 access cab with the 4.0 automatic. I only warm up the truck for about 20 seconds. Any ideas on what this could be. I changed my cabin filter.

[98tacoma27]

Originally Posted by redalert

When I start my truck in the morning and go to work a half mile away and turn the truck offi get a sulfer (rotten egg) smell in the cab. My truck is a 06 access cab with the 4.0 automatic. I only warm up the truck for about 20 seconds. Any ideas on what this could be. I changed my cabin filter.

A sulfur smell is an indication of a failed cat. If you are smelling it in the cab, it also suggests an exhaust leak. Are you throwing any codes (cel)? If you have less than 80,000 miles on the truck, you cat would still be under warranty

[redalert]

Originally Posted by 98tacoma27

A sulfur smell is an indication of a failed cat. If you are smelling it in the cab, it also suggests an exhaust leak. Are you throwing any codes (cel)? If you have less than 80,000 miles on the truck, you cat would still be under warranty

I have about 55000 miles. No check engine light though.

[Jester243]

I was also told that they will smell like that when they have not fully heated up. However that was from the dealer so it was probably a lie.

[SilverSeven]

definatly your cats..

[redalert]

Should I try warming up the truck longer and see if that makes a difference

[SilverSeven]

or just cut them out

[98tacoma27]

Originally Posted by redalert

Should I try warming up the truck longer and see if that makes a difference

Sure.

Originally Posted by SilverSeven

or just cut them out

Nah, he is in cali.

[redalert]

Originally Posted by 98tacoma27

Sure.



Nah, he is in cali.

Yeah that's a big no no here. So any other ideas of the possible cause of the smell? Cmon guys.

[98tacoma27]

Originally Posted by redalert

Yeah that's a big no no here. So any other ideas of the possible cause of the smell? Cmon guys.

The smell comes from the cat's inability to catalyze the exhaust. About the only thing you can do, other than have the cats check, is try different octane gas, fill up at a different gass station assuming you use the same one all the time, or seafoam.

You get smog checked in cali right? If you can smell the sulfur now it will probably fail the test.

[OU812]

Originally Posted by redalert

When I start my truck in the morning and go to work a half mile away and turn the truck offi get a sulfer (rotten egg) smell in the cab. My truck is a 06 access cab with the 4.0 automatic. I only warm up the truck for about 20 seconds. Any ideas on what this could be. I changed my cabin filter.

Your answer lies within your statement.. The engine is not getting up to normal operating temp on the 1/2 mi drive to work. Yeah they can put a new cat on at the dealer under warranty. But on a 1/2 mi trip the sympton will return in time.

Try this-- put some decent gas in it, drive the piss out of it to clean out the cats then evaluate next week.

[redalert]

Ok I will try that. I will warm it up longer from now on too.

[phantom]

Should I try warming up the truck longer and see if that makes a difference

now the cat has to get really hot to work, till hot it isn't doing that much

so you can actually get it clogged with unburnt crap


might take it out on a sunday drive for about a hour and up to temps and might cook the cat clean"?
all it would cost is the gas ;-D

[Delmarva]

damn.... I was just gonna say that's what San Diego smells like in the morning...

[brianr]

Originally Posted by phantom

now the cat has to get really hot to work, till hot it isn't doing that much

so you can actually get it clogged with unburnt crap


might take it out on a sunday drive for about a hour and up to temps and might cook the cat clean"?
all it would cost is the sas ;-D

x2

The cat doesn't do anything until the truck is up to operating temp. When cold, I'd start your truck up and give it about 30 seconds to idle, put it in gear and DRIVE. The faster you get the truck up to temp, its going to clean all the carbon and crap out. Then once you are at operating temp, put some foot into it! Lay into (get tha RPM's up), maybe go for that long drive...run a good half a tank through it!

[XC4ME]

I bought my '05 about six weeks ago. It had the sulfer smell issue also. The first week I had it I took it to the dealer and they replaced the cats under the 80,000 mile emission warranty and I haven't had the smell come back. I'm hoping this was the fix.