Toyota Sienna Rotten Egg Smell

If the catalytic converters housing is discolored or warped there may be internal leakage or overheating. Burned vanish or sulphur smell is generally the catalytic converter.

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The catalytic converter is a crucial part of your exhaust system because it takes this by-product and converts it into odorless sulfur dioxide.

Toyota sienna rotten egg smell. A rotten egg smell coming from the exhaust port can indicate an issue with the catalytic converter. A sulfur or rotten egg smell indicates the formation of hydrogen sulfide H 2 S a likely sign of catalytic converter contamination. If you smell this AT IDLE when the car has just been sitting for a minute or two yes its running rich and something is wrong.

It can describe a few things. Rotten Eggs or Sulfur. Rotten egg smell is raw fuel in the Catalytic converter.

Sulfur is a natural component of crude oil from which gasoline is. Some owners of Toyota vehicles may experience a sulfur like or rotten egg odor from the exhaust system. It could be coincidence and unrelated to the previous work – or – the computer may be misreading an engine sensor after the battery was disconnected.

No additives and 87 octane is just fine for most drivers. When gasoline reaches the catalytic converter the converter transforms the trace amounts of hydrogen sulfide into the odorless sulfur dioxide. Thank you for choosing JustAnswer and allowing me to help you resolve your Toyota questions.

The most likely culprit for a rotten egg smell the catalytic converter is part of the vehicles emissions system. When a weird smell starts coming from your engine the first step in identifying the problem is identifying the smell. The catalytic converters sits in between your engine and the tailpipe of the vehicle.

All Toyotas do thisif youre ever behind one going up a hill or under hard acceleration youll definitely smell it. This creates a by-product called hydrogen sulfide which smells like the eggs you forgot in your trunk for a week after grocery shopping. Rotten eggs Rotten eggs are never pleasant and in this particular scenario they can indicate that you have sulfur in your gasoline andor hydrogen sulfide in your exhaust system.

Check the OBD before replacing any parts Cats are pricey. Some Toyota vehicles may experience a sulfur-like or rotten egg odor from. Rotten Egg Smell Causes.

There will be a trouble code in the OBD in that case. Once you can put a name on the odor you can start taking the appropriate steps toward fixing the problem. But this smell is most associated with a failing catalytic converter.

This could indicate that your catalytic converter isnt working properly. A heavy gasoline smell coming from the tailpipe could be the result of a failing oxygen sensor and something as simple as a degraded door seal that is letting in exhaust can lead to an exhaust smell. The 1999 Toyota Camry has 1 problems reported for rotten egg smell.

Car complaints car problems and defect information. The 2015 Toyota Sienna has 31 NHTSA complaints for the unknown or other at 17639 miles average. In an article aptly titled 7 Car Smells and What They Mean the number one smell is rotten eggs.

Toyota has since come out with a Technical Service Bulletin TSB for various models including the 2003 and 2004 Forerunners in an attempt to solve it. I decided that research-real scientific type shit-must be done. Customers often describe it as a rotten egg smell.

A rich fuel mixture will often produce a rotten egg odor in the exhaust the smell is hydrogen sulfide. It doesnt matter if the air is on or not. Average failure mileage is 60000 miles.

The TSB is titled Excessive Sulfur Dioxide Odor. The smell of rotten eggs is one of the most common smells that a vehicle will make. Rotten Egg Smell Causes.

The smell that you are smelling is obviously not rotten eggs. Sulfur is a natural component of crude oil from which gasoline is refined and the amount of sulfur can be decreases through the refining process. Initially Toyota denied responsibility.

The folks over at Bill Penney Toyota were first on my hit list from the Google-machine. When the catalytic converter is working properly it converts the hydrogen sulfide into sulfur dioxide which is odorless. It is hydrogen sulfide which is a product of the sulfur in gasoline.

Ammonia NH 3 odor may also indicate poor catalyst function. Refined and the amount of sulfur can be decreased through the refining process. You could be facing an issue with your fuel injection system or your catalytic converter with this car smell so dont delay getting your car checked.

Rotten egg smell coming through the vents 2 Answers It only does it when the car gets hot and has been driven 20 mins. Dirty feet smell is generally the result of mold and mildew buildupaccumulation within the. Underlying problems may include an engine management system that is not going into closed loop check the coolant and oxygen sensors.