If your car won't start and you smell a rotten egg odor, it likely indicates a problem with the fuel system, particularly the fuel itself. The smell of rotten eggs is often associated with sulfur, which can suggest that the fuel is contaminated or that there’s an issue with the catalytic converter. It's important to avoid attempting to start the vehicle further and have it inspected by a professional to diagnose the underlying issue and prevent potential damage.
I suspect you have a clogged fuel filter. If you are smelling something that smells like rotten eggs, it is your catilytic convertor.
Car exhaust can smell like rotten eggs when the fuel has a lot of sulphur in it.
If a car begins to smell like rotten eggs and then starts acting like it has bad gas, it may have been filled with the wrong type of fuel. This smell is common when diesel fuel is burned.
It's an indication of inefficiency in the catalytic converter. Could just be the rapid increase in fuel due to the load of going up hill. Normally a computer would adjust the fuel air ratio to keep it running efficiently, but some modified vehicles will allow too much fuel to be used causing an overheating condition in the converter, it smells like rotten eggs. Also your converter may be getting clogged and be in need of replacement.
Typically this is caused when the fuel is burned uncleanly and the sulfur in gas makes it smell
too much fuel in your cylinders!
Fuel pump
A rotten egg smell is usually a sign of a failing catalytic convertor and also at times failing oxygen sensors. try the cat first and that should alleviate your smelly problem. answer before you change expensive catalictic converter, try using a different brand of fuel sometimes fuel company additives will make your exhaust smell like rotten eggs
catalysts are not fixable... you replace it... but first make sure there is no more simple (and cheaper) solution... if your car stinks i would check the O2 sensors, MAF, test for fuel pressure issues (bad fuel pump - you have 2 of them; one goes bad and car smells like rotten eggs) or the fuel-air-ratio in the ECM is right... especially if a new MAF was installed...
One component of gunpowder is sulfur, which is responsible for lowering the ignition temperature of the mixture. Another component is charcoal, which provides fuel for the combustion reaction. The third component is potassium nitrate (also known as saltpeter), which is the oxidizing agent that provides oxygen for the combustion process.
probably getting too much fuel and flooding
Malfunctioning emissions system. Get this repaired. Engine probably running rich from a leaking fuel pressure regulator. If there is fuel in the vacuum line the regulator is bad.