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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

Had to change alternator now having trouble with PCM what do you do?

It is possible that the alternator caused damage to the PCM. Best to have diagnostics done on the car to see if and where the problems are.

How do you tell if alternator is bad in a 1999 gmc sierra?

Check the voltage at the battery with the engine running. Use a DC volt meter set to the 20 volt scale. You should have a reading of between 13.5 & 15.5 volts. If the reading is significantly higher or lower than this then you need to drive it to the nearest auto parts store and have it checked professionally to be sure. But more than likely the alternator has failed.

How to repair Alternator on 2004 Hyundai XG 350?

Alternator require extensive work to be repaired. On a 2004 Hyundai it is best to replace a broken unit with a new part.

Why is the battery and brake light on in the Kia Sedona after you replaced the alternator?

The battery light stays on when the alternator is over or under charging. The red brake light stays on when the parking brake is set or the fluid is low. The abs light stays on when the abs computer detects a malfunction and sets a code.

What is the function of an alternator?

It converts the mechanical energy of the rotating engine into electrical energy to charge the battery. It as also powers accessories.

1993 Oldsmobile cutlas cierra checking charging system for alternator?

You need a voltmeter. A fully charged battery is 12.6 volts. With the engine running the voltage on the battery supplied by the alternator should be 13 to 14 volts. A few auto parts stores will do the check for you if the battery has enough charge to get you there.

How do you replace the alternator on a 1993 dodge caravan?

While I never replaced the alternator on my 1993 Caravan that I used to have, I did begin attempting it, but it became more extensive than I wanted to get into at the time. Since then I have gotten rid of it and never completed the job. But I may be able to validate some of you issues that you may be having. While it looks very visible and easy to get to, I found that the only way I was going to be able to get to it was from underneath the car and only after taking off the exhaust from the manifold. It was just too large to get out any other way. As I said though I never completed the job. Hopefully someone else will have some better advice for you. I found that vehicle one of the hardest that I have ever owned to work on. GOOD LUCK.

p.s. I am assuming that it is a 3.3L V6

Method of synchronization of an alternator?

  • there are many ways of synchronization.
  • 2.1 Synchronizing lamps
  • 2.2 Synchroscope
  • 2.3 Synchronizing relays

also there are wattmeter method and lamp method

How do the diodes in an alternator work?

A diode is a semiconductor that passes current in one direction only. The stator of the alternator generates three phase AC in a delta configuration. The six diodes are connected in a full wave bridge configuration that converts the AC to DC. At any instant of time, only two diodes are conducting, one to ground, the other to the battery. As the alternator spins, each phase takes turns, and the diodes turn off and on in turn as well. The result is a DC voltage with relatively little ripple.

How do you add alternator to golfcart?

If it is a gas golf cart it has an alternator and if it is electric you have no need for an alternator. An alternator would require more power to turn that it would return to the batteries. So, you would get less distance out of the cart with an alternator installed. That is why electric carts do not come equipped with an alternator.

Where is the alternator located on a 1993 Mazda MX-3?

for 4cylinder engines, the Alt. is located near the bottom of the engine on the passenger side..

for v6, it's located behind the front passenger side headlight.

4cylinder:

http://www.mx-3.com/manuals/showimg.php?file=/1992%20Workshop%20Manual/G92_G-012.gif

v6:

http://www.mx-3.com/manuals/showimg.php?file=/1992%20Workshop%20Manual/G92_G-013.gif

How do you adjust alternator belt tension on a 1995 Nissan Sentra XE?

You'll find an idler/tensioner pulley, which rides on an adjustable arm. First you have to loosen the locknut(14mm?) of the pulley , then tighten/loosen the adjuster rod (8mm?) to adjust the belt tension. Afterwards, tighten the locknut.

How would one change a melted wiring plug that goes on the alternator?

go to the store and get a new plug for your year of car cut the wires hook them up to the same color tape or shrink wrap exposed wire plug into alternator good to go

Where does the alternator mount on a 1971 Ford Mustang 351?

On the front of the engine.As you are looking at the front of the engine it will be on the upper left hand side, attached to the block and head.

How to you tighten the alternator belt on a 1995 Plymouth Acclaim?

It uses a spring loaded belt tensioner I believe. The tensioner is automatically set. IF there is not enough tension, then replace the tensioner. The belt may be stretched and need replacment however.

How do you replace the alternator on a 1992 Chevy Silverado?

are you sure it's bad, what is the volts showing on your gauge? if you do not have a good charge on the battery it takes a long time to recharge. Autozone will check it for free and tell you what you need to know.

How do you change an alternator on a 2002 Kia Optima?

You will need to jack up passenger side and remove passenger front wheel. From above remove belt tension bolt. underneath remove bottom bolt, disconnect wiring. wiggle out from above.

Procedure in replacing the alternator on a 1999 Ford Explorer?

loosen the bolt on the tension pulley. then insert a 3/8 ratchet in the square hole on the pulley that will loosen the belt

My car has a dead battery I am not sure if it is the alternator or just an old battery car ran fine all day yesterday with ac for most of the day and now it wont hold a charge. did not leave lights on?

Take the car or even just the battery to your local auto parts store. They can test it and tell you what you need for zip as long as you purchase the parts to repair it from them.

Where is the external voltage regulator for a 1994 lebaron?

The engine computer is the voltage regulator. It is the large black box behind the battery.

How do you replace an alternator for 2003 Ford Escape?

autozone has all the parts I'm sure if you go there and ask they'll help u it worked for me Hope that helps!

Could the problem be your alternator or the battery when the check gauge engine light comes on while the battery gauge keeps moving.?

that depends on what your voltage gages says while the car is running. while the alternator is spinning, it should generate 13 to 18 volts. if that's the case, your alternator is fine. If not, you need to replace it. it won't charge the battery, giving you about 20 minutes of drive time, but the more you drive the battery like that, the more you will stress it out. if you stress the battery too much, it may go bad on you too. you can get the battery and alternator tested at most auto parts stores. many stores will even test your parts for free.