Have a terrible smell, after climbing small hills around town. Cat converter? Its possible since its never been replaced after 184K. New cat and plumbing to the back?

thx

 

Yes and No

 

Clutch if it smells like brakes.
What are you driving? Is it carbed or EFI?

 

Smells like rotten eggs? Pretty much normal for a new / cheap converter and cheap gas.
It's caused by sulphur from the fuel attaching to the converter's substrate when the converter is relatively cool then being released when the converter gets hot, like what you'd encounter pulling a load (like going up a hill). The sulphur ends up combining with hydrogen some oxygen and turns into hydrogen sulfide.

 

did you fart?

 

 

94 4runner, 3vze, auto, 184K. Just so tired of the lack of power. looking for any cheap help. So when do you know that the cat is done. And yes it could be senior flatulente.

 

Abe, I love these great answers. You really sound knowledgable.

Lets say it was a fart. Could you give us a detailed answer for that condition as well? And why does it happen?




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Great post, and right on the money.

 

In a lot of CA we have bi-annual smog inspections, so, you know the cat is done when you can't pass smog. You could take it to a smog station and just ask them to run a verification.

As for where to get a cat back kit, Downey....but they just went out of business. Your local shop can put one in for you very easily also. You probably need a new muffler anyway.