how to know if its battery starter or alternator?
232951
If you jump start your car and it will start, but the engine dies right after the jump then it is most likely the alternator. (Note: Do not try to test the alternator by removing the negative battery cable with the engine running.
872199
Defective Alternator If your alternator has a bad diode, your battery can drain. The bad alternator diode can cause the circuit to charge even when the engine is shut off, and you end up in the morning with a car that won't start.
1048420
If your battery no longer has enough charge to turn the starter, your X-Trail will not start. ... Battery is Charged– If the battery is charged, then it would still be advisable to take a look at the battery cables and see if there is an issue with corrosion. Otherwise, it may be the starter that you need to look at.
43965
Signs the Battery is Dead: When you attempt to start the car, there is a low whining sound. If jump starting gets your engine started and running, but the car will not start again once you turn it off, the battery is probably the problem.
251766
If the battery is weak or dead, the car will continue to run but the lights will again become dim after a short time, indicating a problem with the charging system. If the vehicle has difficulty starting after the battery is fully charged, the problem likely is with the alternator.
81469
['Dim lights. The alternator is part of the electrical system of your vehicle. ... ', 'Warning light. Most modern cars have a dashboard warning light that alerts you when the alternator is on the fritz. ... ', 'Weak or dead battery. ... ', 'Weird smells. ... ', 'Odd sounds. ... ', 'Visual cues.']
71719
To check a car battery, turn off the ignition and pop your vehicle's hood. Hook up a voltmeter to the car's battery by connecting the red lead to the positive terminal and the black lead to the negative terminal. If the battery is in good condition, the voltage will read between 12.4 and 12.7 volts.
558599
Stop by your local store for free engine code scanning on most OBD II vehicles! ... We can test your battery, starter or alternator on or off the vehicle. This is a free service for all customers.
460642
['A slow starting engine. Over time, the components inside your battery will wear out and become less effective. ... ', 'Dim lights and electrical issues. ... ', 'The check engine light is on. ... ', 'Corroded connectors. ... ', 'A misshapen battery case. ... ', 'An old battery.']
538380
['1# Squealing Noises. A squealing noise for a few seconds when starting the engine is a surefire way of telling that the alternator belt is slipping. ... ', '2# Battery Warning Light. A loose alternator belt means that the battery does not get adequate power. ... ', '3# Blinking Lights. ... ', '4# Dead Battery. ... ', '5# Stalled Vehicle.']
39478
['When you attempt to start the car, there is a low whining sound.', 'If jump starting gets your engine started and running, but the car will not start again once you turn it off, the battery is probably the problem.']
50376
['A slow starting engine. Over time, the components inside your battery will wear out and become less effective. ... ', 'Dim lights and electrical issues. ... ', 'The check engine light is on. ... ', 'A bad smell. ... ', 'Corroded connectors. ... ', 'A misshapen battery case. ... ', 'An old battery.']
596930
If the battery is working properly and nothing is wrong with it, then it's the alternator that will more likely cause a problem. A simple test to check the working of the alternator is by running your car; and then unplugging the positive connection of the battery.
801094
["The engine cranks, but won't start. This is most likely to be the result of a flat battery – it could also be an engine ignition or fuel system problem. ... ", "The engine won't crank (and the accessories and lights are off) ... ", "You've had to jump start your car a lot. ... ", 'Your car battery is cracked, swollen or leaking.']
594666
If you hear a whine or the sound goes fuzzy when you hit the gas, your alternator is probably failing. If the vehicle won't crank or start but the headlights are still working, look to problems with the starter or other parts of the engine.
333301
First off, switch the key to the on position without cranking the engine. Check the dash to see if your battery gauge is reading below 12V. Next, notice whether dome or headlights seem dim, as this indicates a low battery. Check the condition of the battery itself, noting any loose cables or crud accumulated on top.
978702
A starter that's failing may crank the engine too slowly for a quick start, or it may not crank the engine at all. Often, the problem is not the starter but a low battery or a loose or corroded battery cable connection. So, check the battery charge and condition first.