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What Can Cause Your Car to Smell Like Rotten Eggs?

Rotten eggs have a very unpleasant smell. Imagine smelling that in your vehicle. You've done everything you can to remove that smell, but somehow it still lingers. You should know that lingering smells of sulfur in the car often show a serious issue. Here are 3 reasons your vehicle may smell like rotten eggs.

1. Catalytic Converter Breaks Down

The catalytic converter is a part of the vehicle's emission system. This means when the gas reaches the catalytic converter, the converter transforms trace amounts of hydrogen sulfide into odorless sulfur dioxide. However, if the catalytic converter is broken or jammed, it can emit sulfur like gases that smell like rotten eggs. If it is the reason for the smell, you need to get your catalytic converter replaced.

2. Fuel Pressure Sensor Failed or Worn Out Fuel Filter

The purpose of the fuel filter is that it regulates the use of fuel in a car. If it fails, it will clog up the catalytic converter with more oil than it can handle. Too much oil in the converter means it can't process all exhaust byproducts. When this happens, you'll smell sulfur. The same goes with a worn out fuel filter. If it's not working properly, it will build up excessive byproducts in the converter too, causing that unpleasant smell.

3. Old Transmission Fluid

If you haven't changed your transmission fluid for a while, you may notice it with a smell. This is because the fluid leaks into another system, causing the smell. With that said, you'll want to refer to the owner's manual to see how often the transmission fluid should be changed.

What To Do Next

If you know how to do so, you should check the evaporation emission system. Make sure that the catalytic converter is in good shape. The transmission fluid replaced. Also, ensure that the fuel pressure sensor is working. You know that everything is functioning normally when you don't smell anything. If you need catalytic converter repair done, give our Luke's Auto Service a call today!