I just had my starter changed when I turned car on didn’t stay on. I had someone pass current and car turned on fine I drove car f

I just had my starter replaced as I went to turn on the car my battery needed a jump so my neighbor helped. Car turned on I drove it for 20 min. Came home was home for 10 min as I am trying to leave again. My car starts but won't stay on

My car has 151076 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there. It is quite possible that the starting issue you’re currently having with your Ford Focus is not related to the starter replacement. However, it could be due to might be due to your battery problem. When your battery does not have enough power to engage the starter, it also impacts other important systems critical to maintaining ignition, ranging from the ignition coils to fuel system components. It might be a good idea to have a professional mobile mechanic from our team come to your location to compete a car starts then dies inspection, so they can correctly diagnose this issue and ensure the right repairs are made.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Bad or dead battery

The most common reason cars don`t start is a dead or faulty battery. Even though most cars run on gasoline, they all require electrical power to function. The starter that cranks your engine to start requires an electrical signal to fire.

Starter Engine Issues

If you don`t hear clicking when you start the engine, the problem may be a dead battery. If you hear clicking, but the engine doesn`t crank, the starter might not be getting enough electricity. Using your owner`s manual and a voltmeter, you should be able to test functionality.

Bad Alternator

If your car won`t start, but your battery is fine, chances are you have a bad alternator. This is another charging system issue, like a dead battery, that won`t let you start your car.

Car suddenly stalls while operating: One of the most common symptoms of a failed ignition relay is a car that suddenly stalls while operating. If the ignition relay shorts, burns out, or otherwise fails while the engine is operating it will cut off power to the fuel pump and ignition system.
The battery can be fully charged but still not be able to start the vehicle if it is failing or has a dead cell. Other likely issues are the fuel pump, ignition switch, battery cables, starter, or a clogged fuel filter.
If your vehicle won`t start, it`s usually caused by a dying or dead battery, loose or corroded connection cables, a bad alternator or an issue with the starter. It can be hard to determine if you`re dealing with a battery or an alternator problem.
The engine won`t turn over. The most common signal that your starter has a problem is if nothing happens when you turn the key or push to start. Unusual noises, such as clinking, grinding and whirring. If you ignore these sounds, it can eventually lead to damage to the engine flywheel.
Can you jump-start a car with a bad starter? Most of the time, NO, you can`t jumpstart a car with a bad starter unless you repair it. When the battery is dead, jumper wires or boosters are employed. You use a second battery to provide the necessary electricity to start the car.
A bad starter actually sounds quite a lot like a dead battery – you turn the key, and all you hear is a click. It might not be the entire starter, though – it could be a weak component known as the solenoid. It prevents the starter from creating the correct current to start your car.
Can a Bad Starter Drain Your Battery? So can a bad starter drain your battery? The short answer is: Yes, it can. It could also drain the battery even faster if you repeatedly try to start your car with a faulty starter.
Defective charging system – A car battery drains quickly if something called the alternator on your charging system fails to push out enough voltage, ideally between 13.5 – 14.5 volts. In this case, the battery will continue to drain even while the car is running.
If the voltmeter reads between 14-15 volts then the battery is normal. But if the battery reads over 15 volts or less than 13 volts, then there might be a problem with the alternator. The alternator is over charging the battery or not giving enough charge to the battery.
Car batteries die when they weaken from too much cold, heat, drain, corrosion or vibration that they don`t have enough electrical power to crank the engine. No matter how tough they look, car batteries are sensitive electrochemical devices.
Often, a car battery will die without any warning, leaving you stranded. When you check the date of your battery, also clean off any white corrosion around the terminals. Battery tests are free at most chain auto parts stores. If you buy a new battery, they will also recycle your old one for free.
The car wasn`t driven long enough for the battery to recharge fully. The vehicle charging system has a problem, like a bad alternator or voltage regulator. An electrical system was left on, draining the battery. The battery is too old and just can`t hold a charge.
CAUSES OF FAULTY STARTERS: CAUSE OF FAILURE

Electrical connections faulty. Solenoid switch (engaging relay) stiff or faulty. Electric motor damaged electrically. Single-pinion gear, starter pinion or freewheel damaged.

More often than not, your car may fail to start due to a discharged or weak battery. Providing enough amps to the starter can help it function normally, which in turn, will crank up the engine. To jump-start a car, you can either use another car`s battery and jumper cables or use a portable jump starter.
Average car starter lifespan

A car starter can give you around 80,000 starts before you should expect it to struggle, regardless of the mileage you drive. This is around 150,000 miles for some cars, while some starters can last the vehicle`s life.

Since any engine requires the correct air to fuel ratio and ignition timing to start, having a faulty sensor that can`t adjust these symptoms on the fly can cause the engine to not start.
The O2 sensor will not cause the no start. The no start can be caused by the fuel pump or the ignition system. You should check the engine for spark and fuel pressure, when it is not turning on to help narrow the problem down. The ignition system may be the coil, module, or pick up in the distributor.
A Bad Crankshaft Position Sensor

The crankshaft position sensor monitors the position and rotational speeds of the crankshaft. Without the crank sensor, the engine control module (ECM) wouldn`t know when to fire the fuel injectors and ignite the spark plugs.

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.
In most cases when a starter goes bad, it`s completely random with no warning signs or symptoms of mechanical failure.
If you hear or feel the relay click, the relay and its wiring aren`t the problem. But if it`s not clicking, the problem could be in the relay itself or in the wiring.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I just had my starter changed when I turned car on didn’t stay on. I had someone pass current and car turned on fine I drove car f
ANSWER : Hi there. It is quite possible that the starting issue you’re currently having with your Ford Focus is not related to the starter replacement. However, it could be due to might be due to your battery problem. When your battery does not have enough power to engage the starter, it also impacts other important systems critical to maintaining ignition, ranging from the ignition coils to fuel system components. It might be a good idea to have a professional mobile mechanic from our team come to your location to compete a car starts then dies inspection, so they can correctly diagnose this issue and ensure the right repairs are made.

Car won’t turn over. No lights come on when I turn it. Can’t even lock my doorsvor push the seat up or back.
ANSWER : Your probably correct, it sounds as though your battery is done. But it also sounds like you have charging system issues. I’m not sure that fixing your battery and charging system will solve the problem with the car shutting off, but it’s possible that it will and it’s a darned good place to start. By contacting Your Mechanic, you can have a technician come to your home or office to check out your car and help you figure out what to do next.

As I’m driving, all my lights inside/out of the car turn off and the car still stays on. But when I turn the car off it won’t turn over
ANSWER : Hello there. The charging system on the car may not be charging the battery as you drive and the systems that keep the engine running are priority so the engine will stay running until the voltage drops below about 9 volts but the lighting and some other accessories may cut off above this voltage first. You should have the charging system tested to see if the alternator needs to be replaced.

Engine turned off but inside of car still on, now engine won’t turn back on.
ANSWER : Hi there. The symptoms you’re describing with your boyfriend’s 2002 Grand Cherokee appear to be related to a broken or worn out ignition switch or relay. The ignition switch on the inside of the steering column is attached to multiple electronic connections that send signals to a relay box; which in turn, sends the signal to the individual components. The issue could be related to the ignition switch, the relay, or any of the components in between. If you want to have the fault pinpointed in person, I would have this starting issue inspected by a trained professional to ensure that the correct repair is made.

The starter off and on wont turn over when trying to crank the car.
ANSWER : Hello, thank you for writing in. Often when starters are installed they come with a shim. These shims need to be installed to help hold the starter at the proper angle. If the angle is off the gears may not mesh correctly putting excess pressure on it that the starter cannot compete with. If the starter did not come with a shim, or you do not have it anymore, you can likely purchase or fabricate one relatively easily. If this does not solve the issue, make sure there are no wires that are being pinched or shorted out when the full weight of the car is being supported. For more help diagnosing the issue, contact our service department to schedule an appointment. And thank you for you service to our country.

Driving, then engine/oil light turns on, steering locks up, car dies; but just fine after turning off than on.
ANSWER : Any time loss of steering, or power assist to the steering is lost, it can be a safety issue and should be looked into as soon as possible. If the oil light and/or check engine light are flashing before it stalls, it can be a few different issues causing this. Also, a fault code may be stored in the system. Warning lights flashing after the engine stalls is normal. Most engine control units monitor readings from the oil pressure switch as well as the dozens of other sensors. Make sure the engine oil level is correct. If the oil pressure switch is intermittently losing it’s signal, then the ecu may think there is no engine oil pressure and shut down as a safety measure.

Have a certified technician look into the engine stalling as soon as possible. Losing steering and brake assist can be a safety hazard.

My car stops when engine gets warm and while I am driving I stop on red light and car suddenly turn off and I have to hit starter
ANSWER : Hello, from what you’ve described it sounds like you are having several different issues. The starter should have nothing to do with it stalling, but it will have something to do with the car restarting if it doesn’t turn the engine well. The stalling can be from the distributor or possibly a computer sensor.

The scenario where you hit a car from behind may be from another problem, alongside with the idling of the engine. Without knowing the model and engine size of your car I can only say so much. I would suggest having a mechanic do a thorough check of the entire car to check the engine, brakes, and computer systems to see if the problems can be identified and repaired, or at the very least quoted.

Gas line stays on F when car is turned off
ANSWER : I’m assuming the the gauge usually drops down to "E" on this particular car. Some vehicles gauges stay in the last spot they were at when the key is on. Not as common now days. Key off gauge issues are rare, but if this is a gauge problem, I would tap on the top of the dash to see if maybe the gauge is just stuck. It does happen from time to time. Outside of that, I would drive the car for a 100 or so miles and see if the gauge eventually moves. If it doesn’t, you know you have a problem for sure.

If you determine the gauge is stuck, the next thing I would do is connect a scanner to see if the sending unit in the fuel tank is reading less than full. If it is, you know its a gauge problem and not the sending unit. Of course, if after 100 miles the sender still shows full on the scanner, it a sending unit problem.

This of course is the typical diagnosis when the key is on. This is a key off problem that may or may not be a problem with the key on. If the gauge is stuck full after 100 miles, it is time for a technician to determine what has failed. In this case, it sounds like it will be the gauge, which is often an integrated part of the instrument cluster. It will need to be looked at in person with a scanner to accurately diagnose.

For now, I recommend seeing if the gauge moves as the fuel is used in the tank, and if the gauge is just stuck in its extreme full position, driving around may jar it loose. Good luck. If you want a second opinion on this, reach out to a certified mechanic who can diagnose this issue accurately and replace your fuel gauge sender if necessary.