I accidentally double turned the key while trying to start up my car now it makes a grinding noise 2002 Ford Taurus

It just happen today is this permanent
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello. Most of the time when this occurs it is because the second start caused damage to the starter. If the grind only happened once and did not occur again then it is fine. If the noise is constant now then the starter was damaged and will need to be replaced. If you need to have this fixed, consider YourMechanic, as a certified mechanic can come to you to [replace your starter] https://www.yourmechanic.com/services/starter-replacement

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Most likely, if it is true grinding that you hear, the problem is related to the starter. Causes include the starter not lining up correctly with the ring gear on the flywheel, missing or damaged gear teeth, or a faulty solenoid. Replacing the starter is most often the right solution.
Whirring sound: This might mean that the solenoid is worn out and unable to engage the flywheel. The sound you hear is the armature in the starter spining on its own but unable to crank the engine to start.
Modern cars will not allow cranking when the key is turned to the crank position when the engine is already running so no damage will result. On older vehicles, the teeth on the starter could be chewed up. Also, the teeth on the flywheel could be damaged.
One of the symptoms of a bad starter is a single clicking noise when you turn the key or push the start button. Tapping the starter can sometimes get it going again, but no guarantees. Most likely, you`ll need to get your starter repaired or replaced.
Usually a rapid clicking noise is a good indication that your starter motor isn`t getting enough electrical current to engage – basically your solenoid is trying to engage but can`t make the connection.
A bad starter`s tell-tale noise is loud clicking. It can either have a fast tempo, click-click-click-click-click-click-click-click or a slower lilt of click, click, click, click. No other part makes these noises when they fail, so if you hear either, you`re likely going to be on the hook for a brand-new starter.
It`s more often the flywheel – which is the larger gear that the starter gear meshes with. They`re both pretty tough, and accidentally starting the car when it`s already running once in a blue moon probably will not do any damage. If it`s done repeatedly, though, you can wear down or break a tooth on the flywheel.
Bent Keys

Check whether your key has a kink or is bent, as this could prevent you from starting the car. In some instances, a bent key may ignite the car but refuse to release from the ignition cylinder. Your first instinct may be to wiggle the key inside the ignition cylinder in an attempt to straighten the key.

The most common causes of grinding noises in automobiles are worn-out brakes, a faulty CV joint, or transmission issues. It`s important to note that, whichever component is causing the grinding noise, it needs immediate repair.
If you hear grinding noises when driving and braking, try braking a little harder. If the sound gets worse, then you may have worn out brake pads. Stop the vehicle and take a look at your brake pads. If you are not sure where to look, consult your owner`s manual.
Signs of a Bad Starter Solenoid

It usually means there`s a faulty connection in the solenoid. Another common symptom is a single clicking noise when you turn the key.

A single “click” sound comes from the engine compartment or from under the car. This could mean that the solenoid is trying to engage but that the internal components are stuck and unable to work properly. Repeated “clicking” sounds usually indicate a dead battery.
When the starter drive gear is worn out or not engaging properly, it will often produce a grinding noise. This is similar to the one that is heard if you start your engine and then accidentally action the ignition switch again. If the grinding symptom is ignored, it may also result in damage to the engine flywheel.
The starter solenoid makes a rapid clicking sound. As a driver, you always need to remember that hearing any weird noise coming from your vehicle is not a good sign, whether it`s coming from the starter solenoid or other parts.
Push-start the vehicle if you have a manual transmission.

Once you`ve got some speed going, release the clutch and your car should start. Press the clutch back in and give your engine some gas and you`re good to go! This will definitely work with a bad starter, but it could also work with a bad battery.

Starters do wear out or fail over time. However, they usually have several warning signs that they`re on the way out, and mechanics may ask you about them if you take your vehicle into an auto repair shop.
In most cases when a starter goes bad, it`s completely random with no warning signs or symptoms of mechanical failure.
If you notice your car making a grinding sound when it accelerates, your issue is likely to do with your transmission, a problem with your differential, a bad wheel bearing, a damaged CV joint, or a worn engine/motor mount.
In a modern car with electronic fuel injection, there is no need to let things warm up before you turn the key and embark. Just to be safe, we recommend pausing briefly after turning the key to the on position — maybe just long enough to put your seatbelt on? — before turning it to the start position.
How Many Starts? Again, this number can vary dramatically. As a rule of thumb, you can expect about 80,000 starts from a brand new starter with no defects. Starters in warmer climates will typically last longer also, which is why car trouble is more likely on the worst day of the year when you need your car the most.
Be sure to drive your car for about 30 minutes before stopping again so the battery can continue to charge. Otherwise, you might need another jump start.
Broken or Damaged Ignition

If your headlights can turn on, but your car won`t crank, that means that your battery is charged, but either the starter or ignition is the problem. If the starter or ignition is the problem, a starter engine can be jumped by using a charged battery.

Hearing a grinding noise when you start your car typically isn`t a good sign. The problem usually lies with misaligned gears in your starter, a low battery, or a worn flywheel. While it may be hard to identify exactly which piece is causing the grinding, repairs should be pretty straightforward once you do!

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

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.
ANSWER : A possibility is a faulty ignition switch. If the switch opens after the car starts, the engine will shut off. But, that is just a possibility and a diagnostic would have to be performed to rule that in or out. Be sure you have a fully charged battery that passes a load test. Starters motors can display intermittent operation if they are faulty. With a fully charged battery, if the starter motor does not run that signifies an electrical problem in the starter circuit (includes the ignition switch) or a problem with the starter motor itself. If there is power to the starter motor and yet it doesn’t run, the starter is condemned and replaced. Alternatively, if there is no power to the starter, or there is a big voltage drop anywhere on the circuit to the starter, then the circuit has to be traced until the fault in the circuit is found. Notably, faults can include high resistances, due to corrosion, wire strand breaks, or loose terminals, which can only be diagnosed using a voltage drop test. Regardless of what the underlying cause of the no start condition is, if you desire that a certified mechanic resolve this promptly, please simply request a no start diagnostic and the responding mechanic will get it diagnosed and repaired for you. Please let us know if you have further concerns or questions as we are always here to help 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.

Car was sometimes not starting, not even cranking when i turned the key then after a few times itd start. Now it ont start at all
ANSWER : Hi there:

Without being there to inspect your vehicle, or having information about what type of car, truck or SUV you own, it’s very hard for us to give you some advice. You might want to have a professional mobile mechanic complete a car is hard to start inspection; so they can come to your location and determine why your vehicle is having these issues.

When I go to crank my car the key stays in the start position and the car is constantly trying to crank itself.
ANSWER : First, let’s make sure about some terminology before I proceed. I will assume the motor is actually turning over. If the car is trying to start, the motor has to be turning over or it is not trying to start. This is an important distinction when diagnosing the starting system. As a technician, I go to different parts of the system based on this description.

If the key is stuck in the start position, this is a ignition lock cylinder issue and the reason the starter continues to turn the motor over. If the starter is turning but the motor is not, then the starter is likely the problem. Either that or the teeth on the flex plate are all gone. This would require removing the transmission to repair.

If the car runs intermittently, this can be a big challenge. And it also means the starting system is working. It will need to be diagnosed when it is failing. A working car cannot be diagnosed because there is nothing wrong. Where you park your car should not have any affect. It certainly could be a wiring problem. Wiring problems hide really well and can happen anywhere in the miles of wires that are in your car. Isolating the system that is failing is really important here. At the moment I am unsure which system is failing. Starter system, ignition lock cylinder and or ignition switch electrical or something with the engine control system.

When the car is failing, you need to check for spark and fuel pressure. If neither is present, this is a clue. Usually the crank sensor will do this. Does your car have a tachometer? If so, does it move at all when cranking. This is a clue whether or not the cam and or crank sensor is working. Is there a Check Engine Light on with the key on? If there is a Check Engine Light, the code or codes can be used for specific diagnosis.

All of these concerns will send you down a diagnostic path. Be sure not to confuse yourself by misinterpreting multiple system failures. If the key does stick in the start position, this would be the first problem to solve. After that, does the motor actually turn when the starter turns? After that, the question of "Why won’t it start?" is first answered by finding what the motor is lacking. Fuel, spark etc… Good luck.

If you need assistance with these checks, contact a certified mechanic who has the tools and experience needed to properly diagnose this starting issue with your car.

I accidentally double turned the key while trying to start up my car now it makes a grinding noise 2002 Ford Taurus
ANSWER : Hello. Most of the time when this occurs it is because the second start caused damage to the starter. If the grind only happened once and did not occur again then it is fine. If the noise is constant now then the starter was damaged and will need to be replaced. If you need to have this fixed, consider YourMechanic, as a certified mechanic can come to you to [replace your starter] https://www.yourmechanic.com/services/starter-replacement

I put a penny in place of a fuse, tried to start my car and now it wont start and makes a grinding sound when i try to start it
ANSWER : Hi there. Putting a penny in place of a fuse, not recommended, replace with the correct fuse. The fuse is there, to protect the circuit. If the fuse blows, there is a short to ground. The grinding sound, when you try to start your vehicle, could be the starter. The starter drive could be at fault or the flywheel has a problem. I recommend having your vehicle’s no start be diagnosed and repaired by a certified technician from YourMechanic.

I put the wrong key in my car and a few weeks later my car just shut down and it will not start I believe it’s the computer but…
ANSWER : Hi there. What had happened is the wrong key set the security to the vehicle. This is to prevent the vehicle from starting with the wrong keys. Try removing the battery cables (+) and (-) for 13 minutes. During that time, put the original key in the ignition and turn it on. Activate everything in the car even though there is no power. Then remove the key and hook up the battery cables. The computer should have reset and reset the security. If the security is still being tripped, then I recommend seeking out a professional, such as one from Your Mechanic, to help you