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Alternators
An alternator is an old term for electric generator that converts mechanical energy to electrical energy producing alternating current. Alternators are mainly used for recharging batteries and to power electrical loads of vehicles.
4,629 Questions
Why does your alternator get hot and car shuts off when you remove positive wire?
The alternator is going bad, may need to be replaced soon
What fuse controls the alternator in 2004 ford f-150?
Alternators are not in a fused circuit. If your alternator isn't working, it's because either the belt is broken, there is a shorted circuit somewhere, or the alternator is faulty.
according to H.M.Bilal student of USA ,an alternator is a device which convert mechanical energy into electrical energy.
Is energizer AA battery better than a generic battery?
Battery chemistry and age are more important than brand. Alkaline batteries are all pretty much the same internally, however the time it sits waiting to be sold can make cheaper quick selling batteries fresher.
Alkaline batteries last far longer than Heavy Duty or General purpose easily offsetting the huge price difference. You would only use heavy duty/general purpose if you wanted it to stop by itself (like a noisy child's toy)
How can you tell if its the battery or alternator that's not working on a car?
Start car. Turn on all lights, blower etc., that you can.
Read voltage across battery terminals. If voltage is 13.5 or more then your alternator is okay.
This assumes you have clean connections, good cables.
How do you replace an alternator on a 2004 Pontiac vibe?
To replace the alternator on a 2004 Pontiac Vibe, first disconnect the negative battery cable to ensure safety. Remove any necessary components like the air intake duct for better access. Then, loosen the serpentine belt by releasing the tensioner, and detach the old alternator by removing the mounting bolts and electrical connections. Install the new alternator in reverse order, ensuring all connections are secure before reattaching the battery.
What could cause vehicle battery to become hot?
Overcharging is a possibility. It would also become warm from a long period of cranking, such as if you have trouble starting the engine. What exactly does hot mean? Rather warm or "oh, there's a problem here!"? Overcharging is the most likely possibility, and if it is boiling off its electrolyte (the water inside the battery) and needs frequent top-ups then overcharging is the most likely answer. It could also become hot if there is an internal short circuit.
Why does battery not charge with new alternator?
When alternator went out, it could have taken out a fuse if the alternator shorted. The main battery cable to the alternator is not fused, but in your panel you should find an ALT fuse. most alternators have two to three small wires that are in a pigtail that plug into the alternator. these small wires are fused. if your car can't pass current through an open fuse. then there is nothing to essentially tell the alternator to turn on. another thing to check, is whether the battery light comes on. if you turn the key to the forward position, without trying to strart the engine, your prestart lights should all light up. this is a system precheck before the engine starts. the battery light should come on at this point. if the light doesn't come on that is an indication of a fuse being blown. in a lot of vehicles, from the seventies to the late nineties, the charge light, or battery light has to work in order for the alternator to work. if the bulb in the dash(which is behind the battery light) burns out, your alternator will not receive power to turn on and work. again, newer vehicles do not have a light circuit that it relies on for the alternator to function. keep in mind, your battery light should have come on and been on the entire time the old alternator was in the vehicle. if it wasn't on, then this is something to pursue further.
Where is the alternator on a 1990 Audi 80 quattro?
The alternator is driven by a belt. Follow the belts and you will find the alternator.
What would make a Chevy caviler alternator not work?
Electrical one way valves called diodes often go bad in alternators (part of the regulating system). Other causes would be bad field or stator windings...basically a broken wire somewhere in the alternator. Bad bearings...since the thing spins very fast.
How much does it cost to replace an alternator in a BMW 320?
At the dealer ~$850.00 depending on the year and the location. But, on my 2007 car, i have bought a rebuilt one for $150.00 on ebay, and replaced it at a local shop for $80. So ended up very cheap compared to the dealer.
Would a bad alternator cause lack of power to the engine?
yes, because the alternator powers or charges your battery, if your alternator isn't working, your battery will not work, therefore your car will stop. If you feel your alternator dying while driving, the best thing to do is turn off all lights and the radio, anything that requires power from the battery. If your alt. isn't that bad off, it will get you to your next stop, however, after that, you won't be able to start your car w/o a jump. Hope this helps :)
Is there a silinode located on the alternator of a 1997 ford escort lx?
No there is not. The only located on the alternator is the voltage regulator.
How much voltage does an Isuzu trooper Alternator produce?
Alternators should produce around 14 volts. I say around because this can vary with temperature, engine speed and the age of the alternator. If you think yours is kicking out too much it's probably the voltage regulator. If you think its not enough it could be the brushes. The easiest thing to do is to pull it and take it to a parts store; most of them will test your alternator for free.
Where is the alternator on a 2001 mercury villager?
Bottom front of the engine under the A/C compressor.
your alternator was never the problem. Its your battery and/or charging system. the reason the lights get brighter is because the car isn't getting the propper amount of energy from the battery and is having to directly draw off of the alternator. when the engine is rev'ed the alternator spins faster creating more current to charge the battery, witch is why the lights brighten at higher rpms.
Why would a 1989 Chevy Celebrity stall after a new battery and alternator is installed?
The engine control module "learns" how to set the idle speed. When you disconnect the battery the engine control module loses that memory and it has to be reset. To regain the setting drive the car for several miles at moderate speeds and it is reset.
Will bad alternator cause car not to shift right?
Yes, it sure can mess with the car's ability to shift with an auto transmission. I have an 05 Kia Rio that started to shift hard between 1st and 2nd gear one Saturday morning. I parked it until I could get it to the shop that Monday morning. When I went out to start the car up to take it to the shop, I found that the battery was dead. I had it towed to the shop and they found out the alternator was bad and not charging the battery. A low battery means not enough voltage going to the shift solenoid in the transmission, which resulted in poor shifting. A new alternator (420 bucks w/labor) and the car shifted like new.
How do you check the volts of a battery?
With a volt meter or multi-meter. With the engine off the battery should read 12 volts at the battery posts. With the engine running it should read from 13.5-16 volts. Red positive probe goes to positive red post on battery, black negative probe goes to negative battery post or any metal ground on the engine.
Does automatic voltage regulators consume energy?
Yes. Almost every electronic device consumes energy, however small. However the power draw of a voltage regulator is extremely tiny, typically less than 1mA. As such, they usually save more power than they consume.
