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A loose cable, the voltage regulator or altenator! If it is the voltage regulator or alternator in most cases they are housed together, so it you change one, you have to change both! Just about any of the chain auto parts store will test it for you at no charge or the car is broken
What else can I help you with?
Why Battery will not stay charged alternator and battery are good?
something is causing a drain on the battery when switch is turned off
If you constantly run your car with a dead battery will this hurt your alternator?
Yes, alternators are designed to maintain the battery, or recharge a battery that has been slightly discharged from starting the car. When the alternator is used to recharge a dead battery, it causes the alternator work harder and longer than it is designed for, causing it to overheat, thus causing damage to the alternator. A battery charger should be used instead. They are designed for charging dead batteries. After the battery is charged, let the alternator maintain the charge.
Why does Ford Mondeo sometimes not start without a jump?
weak or faulty battery, faulty alternator (or slipping alternator belt causing battery not to charge) or faulty starter motor
Why does auto battery leak after charging?
An auto battery could be leaking for a couple of reasons. The alternator could be overcharging the battery causing the leakage. Or the battery itself could have a short or other internal problem causing it to leak when charging.
Will the altnator lock up causing car to stop?
It can happen. The bearings on the alternator of my Silverado did that once, and it ended up causing the vehicle to shut down. the alternator on your car charges the battery which in turn runs the electrical supply to the car. if your alternator is damaged the battery will deliver power to the eletrical system until it no longer can and the car will stop running.if i were you i would replace the alternator,recharge the battery if it is still good and then happy motoring.
What might be the problem with a 1988 Civic Hatchback that is causing the battery to discharge Have already replaced alternator igniter coil main relay and the battery?
You have a short - it's hard to be more exact than that, but if you disconnect the battery and charge it outside of the car and it stays charged, you have a short. If it does not stay charged, you need a new battery.
What does it mean when your steering becomes heavy and your battery light comes on in a ford fiesta?
Alternator Belt has snapped, causing you alternator to stop charging causing you battery light to come on, but this belt also runs your power steering pump which if that's not working your steering will become heavy
All gauges erratic and voltage to battery is 19 volts computer and alternator has been replaced what causing?
All that would be left would be a short in the wiring to the alternator.
Your battery light has started coming on and you have a belt squeeling is the two a related problem 1997 geo prism?
Loose or worn fan belt would cause alternator not to spin fast enough to charge battery. Worn bearing in alternator could be causing it to seize and causing belt to slip
What could be causing a new battery to be losing life?
Some light may be on pulling power from the battery. Can also be a stuck relay. The new battery is possibly defective. Alternator can be weak.
My car died while driving last night so i replaced the battery. AutoZone tested the alternator and said it was working but it was draining my battery slightly...what could be causing this?
Don't believe a word AutoZone tells you. My battery died so I went there and they tested my battery and alternator and told me it was the battery. So I bought a new battery and 2 days later, dead again. Went back and they tested again and THIS time, it was the alternator. I went nuts on them and ended up getting both my battery AND alternator for free for their mistake that left me stranded at 12am.
If I'm on my third alternator in my 2000 Toyota Sienna in a year something is killing them what is killing my alternator?
i would start by testing the battery , i have seen cases where the battery was good enough to start the vehicle but was causing the alternator to do all the work resulting in premature failure. my f150 went through a brand new ford alternator in 2 months .
