How to get rid of rotten egg smell?
You know when your car smells like rotten eggs. Now you think about what you need to do to fix the problem. You can, of course, have a mechanic take a look at it, but even if that was your plan, we highly recommend following the steps below to figure out what’s going on and to avoid them ripping you off and charging you more money.
1) Check for error codes
First of all, at this point your car will most likely also have the check engine light on, and the first thing you should do is find out what this code indicates.
You can get your own top-notch automotive diagnostic tool or take it to a local parts store like AutoZone, where they’ll read the code for you for free. Even if the check engine light doesn’t come on, it’s a good idea to do this to make sure there aren’t any codes or check engine light failures.
2) Check the transmission oil
Next, check the service interval for the vehicle’s transmission fluid and compare it to the last oil change. If there’s a big difference here, the smell is more likely transmission fluid related.
If the oil is low, you’ll need to check various components to see where it may be leaking, fix the leak and get the oil changed.
3) Search for the vehicle
However, if there are no codes and the transmission fluid isn’t old, start looking for the vehicle. It’s possible for the catalytic converter to fail and not turn on the check engine light, but that’s a bit odd. Please, check everything thoroughly for hidden food, tampering, or dead animals anywhere.
4) Check the fuel pressure sensor
The next recommended test is to check the output specs of the fuel pressure sensor, but you’ll need an automotive diagnostic tool to do this. However, it’s also unlikely that the sensor could fail without giving you an engine code.
If you check all of this, you can be relatively certain that the smell is coming from a defective catalytic converter. Replace your converter to get rid of the smell!
Will the smell go away on its own? One thing is for sure: if your car smells like rotten eggs, the smell will not go away on its own and, in fact, will only get worse if you do not fix the problem.
Whether you forgot to bring food or your converter is faulty, the problem will only get worse unless you remove the cause. If you are unable to do the work yourself, we recommend that you immediately take your vehicle to a mechanic to get a quote and have the problem fixed.
