Would an alternator make your car will not start

This cars alternator is controlled by the PCM if the alternator was changed its the wrong one ?check the plugs on the alternator to make sure they are seated properly the PCM controls the charging indicator light

You will have to boost car and start.
With the engine on:
Step 1: Open your hood and so you have clear access to the car battery. Locate your alternator and check to be sure the alternator belt isn't loose. Step 2: Turn your multi-meter to the 20 V setting. Step 3: Start the engine. ...Step 4: check voltage output at battery post, on the meter it should show above 14 volts for good alternator

How to Test an Alternator
How to Test Failed Battery or Alternator

In Car Alternator Testing Updated

How to Test Alternator Voltage Output AutoUpkeep com

Its seems voltage regulator issue.Get the vehicles charging system inspected.

To troubleshoot these issue i suggest you few helpful links with solutions:---Click the link below:----

How to inspect Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-inspect-vehicles-alternator.html

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How to Test Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-vehicles-alternator.html

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How to Service Vehicles Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-service-vehicles-alternator.html

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How to Replace Alternator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-alternator.html

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How to monitor Vehicles charging system?

http://repairhelpcenter.blogspot.com/2011/11/how-to-monitor-vehicles-charging-system.html

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Car Alternator making noise?

http://repairhelpcenter.blogspot.com/2011/11/car-alternator-making-noise.html

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Car Alternator Working Intermittently?

http://repairhelpcenter.blogspot.com/2011/12/car-alternator-working-intermittently.html

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Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.

To confirm the problem, the basic troubleshooting is required.

From start to end troubleshooting these problems I suggest you to check the help link below and follow its procedure: -----

Mostly all types of car no start problems are discussed here with solutions:---

CAR NO START: ENGINE NOT TURNING OVER:

http://alltypesofpartsreplacing.blogspot.com/2012/11/car-no-start-engine-not-turning-over.html

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These will help.

Thanks.

it is the alternator . once a car has started the alternator runs the car

Check cable between engine/gearbox and chasis, or bypass this cable during jump starting,by putting the - jump cable on the engine, if it starts your cable between engine and chasis has a bad connection.

Good luck

it sounds like you have blown fuse to the Alternator.. I don't know what car you are talking about but they charging systems vary.. But if alternator isn't getting all the power it needs it won't charge. this should be checked.

good luck

this sounds like a bad alternator, that is the job of the alternator besides powering your car after start up, the alternator should keep the battery charged, believe it or not cranking your car is the only job your battery has unless you just switch you ignition to accessory, once you start the car everything runs off the alternator , a quick test for the alternator is this , crank the car and very temporarily unhook the positive battery cable, if the car does'nt die after 2 or 3 seconds the the alternator is putting out a charge

Make SURE battery and alternator are good because battery starts the car but car runs on alternator power once its started. If alternator is not putting out the power needed, car will die once the battery power is dead or removed.

That sounds like either your alternator is bad which is causing the car to run off the battery or the battery isn't holding a charge.

it is very rare when a bad alternator will stop a car from starting as the car will start and run until the battery runs out of juice however if it is shorted it could fry other components in the electral system. I am assuming you have already tried to jump start the car and it didnt start so if it is shorted then the welding is already done. check to see that the battery has juice and try to start the car more often than not if there is no turning or starting even while jumping its the ground wire on the batt or the frame thats loose. good luck