Car won’t start strong smell of gas when I try to start it

I have checked the battery and alternator they are both good I can't get the car to start it stutters but doesn't crank not to sure what the deal might be

My car has 84000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Odds are, if you smell gas while cranking the engine, it’s getting fuel. It’s probably not getting spark. Common causes for no spark: Bad crankshaft sensor. Bad camshaft sensor. Bad engine control module. Shorted/broken wires. The only way to be certain what is causing the problem is to have someone knowledgeable with BMWs to diagnose the problem.

How to Identify and Fix Common car Problems ?

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Odds are, if you smell gas while cranking the engine, it`s getting fuel. It`s probably not getting spark. Common causes for no spark: Bad crankshaft sensor. Bad camshaft sensor.
If you notice a burning smell from the car and now it won`t start, this could be a sign of engine damage. Have your car towed to the nearest mechanic, where a professional can inspect the burning smell coming from the engine. Your insurance may even cover the tow if you have roadside assistance on your policy.
Catalytic Converter

As a result, the accelerator slows in its responsiveness, causing jerking or stuttering when you step on the gas. If the catalytic converter is to blame, you might also smell foul odors coming from the exhaust and notice a decrease in fuel efficiency.

You could have a problem with the fuel pump, or a blocked fuel filter. Another cause could be a lack of electrical power to the spark plugs. Check leads, coil packs and plugs for any obvious signs of anything out of the ordinary or loose. If in doubt have a mechanic take a look.
Summary. If your car emits a rotten egg smell, there might be a problem with the catalytic converter, fuel pressure regulator, fuel filter, or even the old transmission fluid. Whatever the cause, if you get the rotten egg smell in your car, take your vehicle to the mechanic as soon as possible and resolve this problem.
It`s normal for your car to smell a little bad when you first start your car, especially on cold mornings. This is partially due to the fact cold engines don`t burn hydrocarbons as effectively and therefore release unburned hydrocarbon into the atmosphere and through the vents.
My Sourdough Starter Smells Like Alcohol/Beer/Vinegar/Nail Polish Remover. If your sourdough starter stinks like alcohol, vinegar, or nail polish remover, it means that it`s really hungry and has produced lots of acetic acid. The good bacteria have eaten up all the nutrients in the flour and are desperate to be fed.
Your vehicle could have dirty fuel injectors, a damaged fuel pump, a blocked catalytic converter, a faulty mass airflow sensor, broken spark plugs, or even an accumulation of moisture.
Most of the time, this is the first indication that the timing belt is failing. The timing belt needs to be checked to see if it is going bad. If the belt is fine, then you may have a turbo that is going bad.
Do you hear a sputtering sound when you turn the key? This sound is a tell-tale sign that your battery isn`t getting enough charge and, consequently, isn`t sending enough power to the rest of the vehicle. This sound might be subtle at first, but as time goes on, the sputtering will get louder and longer.
Your car battery contains sulfuric acid. Usually, the sulfuric acid stays in the battery case and doesn`t cause any problems. But if your car battery suffers any damage, the sulfuric acid can leak out, causing that rotten egg odor.
A Rotten-Egg Smell When You Pop Your Hood

The stink of sulfur is a sign that your battery acid is leaking. Leaking battery acid is one of the top signs a car battery is dying. A dying lead battery will produce hydrogen sulfide gas, which smells like something between rotten eggs, a sewer or well water.

If the car won`t crank (often accompanied by a clicking noise), then it`s usually a problem with the electrical system like the battery or alternator. If the car turns over but won`t start, then the issue will likely be with the fuel system, such as a lack of gas or a blocked filter.
If the car won`t crank (often accompanied by a clicking noise), then it`s usually a problem with the electrical system like the battery or alternator. If the car turns over but won`t start, then the issue will likely be with the fuel system, such as a lack of gas or a blocked filter.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Car won’t start. The check engine light, battery light, and oil change light are coming on. I tried jumping the car and nothing happened. Why won’t my car start?
ANSWER : Hi and thanks for contacting Your Mechanic. If sometimes your vehicle will start with the new alternator and sometimes it won’t, then there is a loose connection in your charging system. Check all of the wires to the alternator and to the battery. Make sure that the battery cables are clean and tight. Make sure that the wires to the starter are clean and tight. A loose ground to the ignition system will cause the vehicle to not crank over. Check all of the ground wires from the battery to the starter. Make sure that they are clean and tight. If you need further assistance troubleshooting your no start situation, then seek out a technician, such as one from Your Mechanic, that can assist you.

Charging warning light comes on when i turn the key and try to start the car and the car want start but when someone tried to give
ANSWER : Hi there:

If you recently replaced your battery, the issue may be caused by a malfunctioning alternator or other electrical component that comprises the charging system on your Nissan Sentra. The best way to find out which item specifically is faulty, is to have a professional mobile mechanic complete a car is hard to start inspection. This will allow the mechanic to determine the precise source of what’s going on with your Sentra and recommend or complete the right repairs.

Battery and oil light come on when trying to start car, take keys out try again car starts no problem and lights go away
ANSWER : Of course, don’t switch gears without being fully stopped, unless your Owner’s Manual or the manufacturer has alternative advice. However, the gear shift issue has no relation to the no-start problem you are describing. Inasmuch as you only have 6,000 miles on the car, the "constant on and off" that you believe has occurred is meaningless in comparison to the expected total vehicle service life. That is, assume what you perceive as "constant on and off", during merely 6,000 miles, might be equivalent to using the car "normally" for three years. A new car should be trouble free for at least 5 years, unless there is a defect, so your "constant on and off" is not a causal factor for any fault on the vehicle. What you might have is a defect in the ignition switch, or perhaps the immobilizer system, but if the problem is not in the switch itself, clearly there is an electrical problem.

If your vehicle is under warranty, by law the dealer MUST repair the issue you are describing within a prescribed time frame and number of "attempts", otherwise the dealer will run afoul of Federal and state Lemon Laws that give you very specific rights, and recourse (contact an Attorney; we are Mechanics, NOT attorneys). Consequently, if the vehicle is still under warranty, to save yourself money do be sure to seek a resolution from the dealer. If the vehicle is not under warranty, obviously a certified Mechanic from YourMechanic could identify the electrical fault and resolve this for you. If you want to go that route, please simply request a no start diagnostic -electrical system and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Car won’t start, can smell gas, started 10 min later.
ANSWER : Hi There,
This is likely related to your EVAP emissions system and something called a purge valve solenoid. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.

My car won’t start. It tries to turn over but won’t.
ANSWER : Hi, thanks for writing in. Your battery may need to be replaced. If you don’t have the right about of Cold Cranking Amps your vehicle will fail to start. There is no way to check this though. Also, your alternator could be going bad. Generally alternators fine, but once in a while you will hear about ones that are going bad. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

The car crank but won’t start
ANSWER : Hi there. This does sound like an issue with the wiring. If the check engine light is coming on every now and then this means that when it does not come on there is no power to the computer. This can be the wiring harness issue or an ignition switch problem. I would have to test for voltage to the computer when the problem is occurring to be able to find where the issue lies. If you need assistance, a certified YourMechanic technician can be dispatched to your location to inspect your vehicle’s non-start issue and suggest any necessary repairs.

My car will not start Intermittently. I purchased a new battery 2 weeks ago and yesterday the car wouldn’t start. Got a jump and
ANSWER : The issue you are having is probably due to an intermittent fault in the starter motor itself or a deficiency in the starter electrical circuit, for example a large voltage drop due to a poor ground or a high resistance connection. These issues can be readily diagnosed and resolved on a mobile basis if you request a hard starting diagnostic. If you request that diagnostic, the responding certified mechanic will get this resolved for you promptly. Based on Toyota’s Factory Service Manual, the battery should not be disconnected if the vehicle engine is running. The battery acts as a large resistive voltage sink and consequently taking the battery out of the circuit, while the alternator is still running, can create a voltage spike on the car’s electrical system which is not good for voltage sensitive components such as the engine computer. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Replaced battery after getting gas in the car. Is it the fuel that keeps the car from starting?
ANSWER : If the vehicle cranks over and does not start after getting fuel then the most common cause is the fuel vapor purge valve is allowing fumes to flow from the fuel tank to the engine while fueling. If purge valve is leaking then replace the purge valve. Hold the throttle wide open to clear the flooding of the engine.