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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 my battery die when I run the AC?
I would suspect that your alternator and ac run off the same belt (serpentine belt). When you run the ac, it causes the belt to run a little slower, and therefore causes the alternator to not put out as much voltage as it needs to in order to keep the battery charged. However, if this is the case, it is because the alternator is going bad. The ac shouldn't affect the engine speed to the point where the alternator doesn't function-- if this were the case then the engine would die. It must be that the alternator needs to be kept at fairy high rpms to produce necessary voltage. Get it tested and if it's bad, replace it or have it rebuilt at a shop.
How do you remove the alternator on a 1997 Chrysler Sebring?
Its a tricky one. You have to unscrew the water pump in order to move it out of the way to get to one of the screws on the Alternator.
What causes a auto alternator to go bad or short out?
the alternator belt could be slipping so check the belt, the wiring at the alternator could be faulty do a check with a multimeter. open the alternator and check the diodes .apply battery power and see if the rotor still spins inside the stator see current output
Why cooling arrangements for large alternator?
Anything that uses or makes electricity produces heat. If you keep scaling it up, it will get to hot for its own material. Therefor it must be cooled to prevent catastrophic failures.
I'm guessing this Cadillac does not have the optional fuel injection (it has a carburetor) since I don't know the VIN. If it has fuel injection, generic troubleshooting is difficult. Things to check: 1. Fuel filter - OK or replaced. 2. --NEGATIVE-- battery cable. The positive cable goes to the starter, but some of these had the negative cable going to the chassis vs. the engine block. This can cause a LOT of strange problems with the electrical system. My 68 Fleetwood Limo would sometimes try to crank and sometimes not. It was this cable at the chassis that was loose. 3. Is the automatic choke (almost) closing on the carburetor for starting? If it is full open, it will flood the engine on attempting to start. 4. WITH ENGINE IGNITION SWITCHED OFF!!! If you look in the throat of the carburetor. Can you see a tiny stream of gas stream in when you press on the accelerator? If not, then there is no fuel in the system or a blockage of the fuel (accelerator pump, stopped up jet, blocked fuel filter -see #1 above-. 5. Check that all vacuum lines going to/from the carburetor are connected. They can make it tough to start if disconnected. 6. Good luck. This is about all I can say without more information.
How much to replace the alternator on a 2002 Isuzu Axiom?
Alternator number is 2-90276-830-2 and MSRP is $505.24. So retail might be around $590.00.
A dynamo is a mechanical device for making electricity. A shaft containing separate electrical windings of copper wire, is rotated inside a magnetic field, created inside the casing, either by permanent magnets or a field winding.
Dynamos produce DC electric current.
They used to be popular in older cars, because they produce DC current, suitable for charging a battery.
They have been replaced by more efficient, AC Alternators, in modern vehicles.
These can produce more power at a wider speed range. Modern electronics allow easy conversion of the AC, to DC, for charging and electronics inside the modern car.
a type of electrical generator
Dynamo is a word that used to simply mean an electric generator, but today a dynamo refers to a generator which produces direct current (DC) using a commutator, an electrical switch that generates electricity from the force of a rotating rod. Like any other generator, the purpose of adynamo is to produce electricity from mechanical power. The source of the mechanical power could be a dam, windmill, or a coal or oil-burning power plant, with the latter being most common. Dynamos were quickly replaced by other electrical generators because of the advantages of alternating current (AC), inefficiencies of the commutator, and solid state methods for converting AC into DC power.
Where is the alternator located on a 2000 Hyundai Sonata?
The 2000 Hyundai alternator is located on the left-hand side of the engine, near the front. You can trace the positive battery cable from the battery to the alternator.
What would be a close estimate cost of an alternator including labor on a 2001 Ford Ranger?
Cost of a reman alternator at Kragen, Auto Zone, etc is 80 to 120 Dlls, labor cost to test charging system and replace alternator should be 40 Dlls
The alternator is considered to be a part of your cars system?
It is an integral part of the electrical system.
How do you know you have a bad alternator?
Turn car on remove positive battery terminal if car turns off alternator is bad
Most likely it will not be the alternator. It sounds as though the alternator is working very well. It will be a faulty battery or a battery drain due to something left on or shorted out. Usually a boot light or glovebox light or recently fitted stereo.
When replacing alternator in a 1991 Olds Calais Quad 4 how do you remove the bottom bolt?
olds cutlass calias bolt removal. you must remove the air box, the radiator cooling fan and anything else that is in your way from accessing the alternator from the top, front of the car. a longer extension on a 3/8 drive ratchet and the proper size socket,13mm or 15mm should remove this bolt.
What do you have to loosen when installing alternator on a 1994 Chevy Cavalier?
The Alternator is mounted solidly to the engine. It does not adjust. You have to use a wrench to pry back the Serpentine Belt Tensioner ,, remove the belt ,, and then remove all of the bolts that hold the Alternator on.
How do you replace the alternator on a Dodge Grand Caravan 3.3L?
Disconnect the negative battery cable. Remove the windshield wiper module for. Remove the accessory drive belt. You will also need to remove the lower bolt and wiring harness from the oil dipstick tube. Take the mounting bolts off of the alternator and disconnect the alternator's electrical harness. This will allow you to remove the alternator assembly. Install the new alternator and connect the electrical harness. Tighten the mounting bolts and install the drive belt. You will also need to install the lower bolt and wiring harness from the oil dipstick tube. Connect the windshield wiper module or right front lower splash shield as required.
Where is the Voltage Regulator on a 1993 Chevy Lumina Eurosport with a 3.1L engine?
your voltage reg is built into the alternator
If battery gauge keeps going down after you get a jump?
hi if ur gage keeps dropping and u run out of juice in ur battery it could be one of two things 1) bad battery or 2) bad alternater
98 ranger replaced alternator and battery but still shows battery light and no charge on gauge?
sounds like your gauge is broken or there is a short in wiring
Can the wrong size car battery damage the alternator?
No, not unless you installed a 6 volt battery instead of a 12 volt battery.
How do you repair an alternator in a 1994 Ford Probe?
ok i have a 1994 ford probe 2.0, it should be the same, the alternator is behide the engine, i did it with just normal tools and didnt have to remove the cross member or half shaft, what i did is
1 remove negative terminal
2 jack the car up as far as you can
3 i unloosend the bolt that moves the alternator back and forth a little then went under and loosend the mounting bolt as much as i could
4 then i went back to the bolt that moves the alternator back and forth and took it out completely (pain in the butt bc u can only move the wrench 1/2 a turn a time, use extensions if u have)
5 remove the mounting bolts completely
6 then with the bolts out i used a hammer to remove it from the mount under neath
7 now with it free i took off the wires (thee is a nut holding the negative on pop the black cap with a flat head and remove it.
8 then i removed the mounting bracket (3 bolts)
9 then here comes the fun, i took the old alternator out by the half shaft i used a hammer and cow bar, and twist it so the pulley is facing the other pulleys (or just how eve u can)
10 to get the new one in all i did was play with it to get it over the half shaft and a little muscle to push it up in and got it.
11 then just reinstall everything.
there is 2 other ways to do it and one is remove the half shaft and that would make life simple also u can remove the crossmember and pull it out back and down by the exost pipe
it took me 2 days to figure this out so i hope it helps
the bolts are all 1/2 or 7/16
How do you check if your alternator is still good?
I use a Digital Volt/ohm meter and test the output of the alternator at the battery or at the main output terminal of the alt. If I'm still in doubt i pull the alt and have it tested at Autozone for free.
Application of separately excited dc generators?
As a separate supply is required to excite field, the use is restricted to some special applications like electro-plating, electro-refining of materials etc.
But what is the difference between self excited and separately excited?
How do you test a automotive alternator?
It's pretty simple, if you have access to a digital voltmeter, which can be had for
as little a $5-$10 at a discount store. The voltage of 13.8 volts on any standard
12 volt automotive vehicle is about the average, when an alternator is properly
functioning, while the vehicle is running. If it measures over 14 volts, the voltage
regulator is shot. They are mostly attached to the alternator these days, but can
be remotely mounted to the firewall in older vehicles. To test the alternator, just attatch the meter leads to the battery terminals. Red for positive, and black for ground.
Make sure the meter is set to the Volts DC Scale,so you get a proper reading. Check
the voltage with the vehicle off, which should read around 12 volts and while the engine is running, around 13.8 volts.
