Question about 2004 Toyota 4Runner
This is in reference to my 2004 4 runner: When I am driving and accelerate an aweful sulfer-type smell comes from my car. I'm pretty sure that is my catallytic gone bad. Is it simple to replace and if so how do i go about doing it?
What you smell is the convertor working to burn off excessive unburn fuel in the exhaust. That does not mean the cat is bad, but your engine is possibly running too rich on acceleration. If it only happens on real hard acceleration, its normal. If it happens on just normal acceleration then you may have a too rich condition witch will eventually harm the cat. Possible problems are a faulty MAF sensor, partially cloged or internally leaking injector or high fuel pressure.
Have it checked by a competant technician if its a constant problem or the check engine light comes on.
Posted on Apr 19, 2009
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Posted on Jan 02, 2017
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