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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
How do you replace the alternator on a 1998 Chevy Tahoe?
1. Disconnect Battery2. Disconnect Wiring to the Alternator3. Remove Serpentine Belt by using a 1/2" drive ratchet or strong arm...Observe how the belt comes off4. Remove bolts going through the alternator and you should be able to pry or wiggle the old one out5. Use reverse proceedure to replace
sorry, donno. what i do know is that you need to take it in to a car-shop. seriously, not safe driving.
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What is the cost of replacing an alternator?
I just paid $310 ($254 parts & shop supplies, $56 labor) to have alternator replaced on 2000 Olds Bravada.
If your battery does not hold a charge do you need a new battery or alternator?
Probably alternater if the battery is less than 5 years old, may be the battery, may be both, may be neither.
What are causes besides the alternator that can continuously pull down the battery?
Parasitic (or ignition key off) drain is the cumulative load produced by electrical devices, for example, emissions computers, clocks, security alarms, radio presets, etc., that operate continuously after the engine is stopped and the ignition key has been switched off. Normal parasitic loads are below 75 milliamps (.075 amps). When the parasitic load is greater than 75 milliamps (.075 amps), batteries will drain more quickly. Glove box, trunk, and under hood lights that do not automatically turn off when the door is closed or shorted diodes in alternators are the most common offenders. Cooling fans, power seat belt retractors, radios and dome lights left on, alarm systems, and electric car antennas have also caused batteries to drain overnight. Leaving your headlights on will generally discharge a fully charged car battery, with 90 minutes of Reserve Capacity (36 amp hours), within a couple of hours. It is highly recommended, especially if you are using a sealed wet "Maintenance Free" (Ca/Ca) battery, allow to thaw if frozen, fully recharge it in a well ventilated area with an external battery charger, remove the surface charge, and load tested both the battery and the charging system for latent damage from the deep discharge. You could have a damaged or bad battery. If the alternator is warm and the engine is cold, then check for a shorted diode in the alternator. Below are some methods that are used to test the parasitic load with the engine NOT running, under hood light disconnected, all accessories switched off, and the vehicle doors closed: * Connect a 12-volt bulb across the positive and negative battery terminals to test the bulb and the battery. If it glows brightly, then remove the negative battery cable and connect the bulb in series between the negative battery cable terminal clamp and the negative battery terminal. If the bulb continues to glow brightly, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the bulb dimming. * A better approach is to use a DC ammeter, for example a Fluke 175, inserted in series with the negative battery cable terminal clamp and the negative battery terminal or a clamp-on DC ammeter, like a Fluke 336 or i410 around the negative battery cable. Starting with the highest scale, determine the current load. If the load is above 75 milliamps (.075 amps) after the initial surge, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the parasitic load dropping to within 75 milliamps (.75 amps). ADDED 25-APR-06 BY Guycaron: For whatever it's worth, this problem came up in both my '86 LSC and '91 LSC/SE. The quick solution was a new voltage regulator. Cheap, easy to replace. Worked both times.
How do you remove alternator in 2003 Ford F-150?
Do yourself a favor. When buying a New Alternator have them check it before taking it home? I had a bad incident that I ended up with, 3 bad alternators in one day, 3 different stores. Last store check it before I took it home and everything was good. I ended up changing it 3 times. Make sure they also change the pulley. Alternator Removal & Installation 1. Disconnect the negative battery cable. 2. Rotate the drive belt tensioner away from the drive belt and remove the drive belt from the alternator pulley. 3. Detach the electrical harness connectors at the alternator assembly. 4. Disconnect the positive battery cable and remove the nut and washer. 5. Remove 2 front alternator bolts. 6. Remove the rear alternator support bracket retaining bolts and the support bracket. 7. Remove the alternator from the vehicle. To install: 8. Place the alternator in position and loosely install 2 front alternator retaining bolts. 9. Install the alternator bracket and 3 alternator bracket bolts. Tighten to 84 inch lbs. (10 Nm) 10. Tighten 2 front alternator retaining bolts to 19 ft. lbs. (26 Nm). 11. Connect 2 electrical hardness connectors to the alternator assembly. 12. Connect the positive battery cable and install the nut and washer. Tighten the nut to 72 inch lbs. (8 Nm). 13. Rotate the drive belt tensioner away from the drive belt and install the drive belt on the alternator pulley. 14. Connect the negative battery cable. 15. Start the engine and check for proper charging system operation.
Can a Chevy S-10 blazer alternator work with a Chevy S-10 truck?
Yes, as long as they have the same engine
How do you replace an alternator in a 1999 Nissan Maxima?
* Disconnect the negative battery cable * Raise the car and support it securely on jackstands.Remove the lower splash shield beneath the alternator and the right-side inner fender splash shield * Remove the drivebelt * Disconnect the electrical connector and the alternator output wire from the alternator * Remove the engine cooling fan and shroud * Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward * Remove the alternator mounting bolts and remove the alternator from the engine
How do you change an alternator on a 2002 dodge neon?
Disconnect bat. Remove wires from back of alt. If serpentine, pull on idler(s) to release belt tension & remove belt. if not, Loosen alt bolt on top & swing to side to remove belt, Remove bolts 6 & 12 o' clock & remove. reverse to install. have fun:)
Do you need to reprogram when changing alternator?
As you will need to disconnect the battery you will need to reprogram the preset buttons on your radio and set the clock. Other than that there is nothing else to do.
Hungarian scientist, Elmer Wavering invented the first car alternator. His invention hit the mass markets in the early 20th century.
Where is the alternator located on a 1996 Pontiac Bonneville SE?
It is located top left of the motor if you are looking at it from the front bumper
Plymouth Voyager alternator going bad How do you tell?
There are generally two signs that the alternator is going bad.
First is the noise. A new noise will begin to be heard. Something like a whining when the car is accelerating.
Second is the smell. You may smell burning from the engine department.
Where is the voltage regulator on a 1973 ranchero?
Near the headlights assembly on the passenger side of car. Remove battery to get to it. Mounted to fender.
Remove alternator from 94 Mercury Capri?
i have a 91 i imagine that it wouldn't be much different first i removed the passenger front wheel and then i removed that part of the air dam and right up inside you can see the alternator. from the top its a tight sqeeze but take the top bolt on the alternator off and take the belt off then go underneath and remove the bottom bolt and then remove the clip on the backside of the alternator. next, remove the tubes and any other things that might get in you're way then just pull it out of the top. installation is reverse of removal just drop it down in there and reconnect all of the tubes in the same order and put it in and make sure you have the belt tight
What tools you need to replace your alternator on 02 odyssey?
I'm not familiary with the odyssey, but you'll need a metric wrench (I don't know what size, though, but it'll be metric.. 13mm or 15mm are the likely sizes), and a slotted screwdriver (to separate the ring terminals from the posts).
How much should it cost to replace the alternator on a 2003 Mazda Tribute?
a lot! its a long process and after doing it once, i will sell the car before i put another one on. there is a lot of stuff that has to be taken off to replace it, and the only way to get to it is from under the car.... like i said, i will not do one again.
Where is the voltage regulator on a 1974 Chevrolet pickup?
It will be mounted behind the battery where the head lights are.
It could be on the fender where the battery is.
How do you change the alternator on a 1997 Nissan Maxima?
Need to lift car. From the bottom remove the compressor it has 4 bolts, then you will be able to see the bolt that goes to alternator, also loosen the pully from the top then and bottom the botom.
How do you replace the alternator in your 1995 ford econoline 250 van?
Remove negative off the battery then remove air filter is in the way you got to get a 3/8 to the tension to remove the belt the the connection to the alternator the red first then 2 long screws in the bottom then 3 screws on the top they are all 10mm then you got 2 more wires a to remove from the alternator be careful and that's i hops this help.1998 e -2505.4l v8
If the jumper cables were hooked up the wrong way by mistake on a 1997 Grand Cherokee Laredo 5.2L, it might be necessary to check the alternator to make sure it is turning in the right direction. If the battery is still being charged, the vehicle should be fine. A high idle could be a problem with the EFI or Electronic Fuel Injectors.
Why is Alternator making a winding noise?
Could be you have a bad belt or belt is loose.. Also it might be possible that the bushings are worn out of the alternator
Does the alternator cable go first or the posotive cable when installing a car battery?
I've found it best to connect the pos first then the negative last. If you connect the negative first there is a good chance that you might accidently ground out the positive against some part of the car.
How do you replace the alternator on a 1987 Honda Accord?
MARK THE POSITION OF YOUR ALTERNATOR ON THE MOUNT BEFORE YOU REMOVE IT!!! This makes it easy to reinstall the belt to the right tension.
It's pretty easy, put the car up on jack stands (I just drove my front driver's side wheel up onto the curb), DISCONNECT YOUR BATTERY, remove your 12mm bolts on the top of the alternator and the 14mm on the bottom. Remove the green wire plugin, pop the alternator out of its space and turn it so that you can remove the pos wire 10mm nut with a socket and a couple extensions on it. If you have the strange mount that uses a difficultly placed 12mm nut to tension the belt, use a 12mm stubby box wrench from below (reaching up past the cv axle) to loosen it. I couldn't figure out another way.
Now from passenger's side panel, look down the firewall midway and you'll see where the heater hoses go in. Just before that you'll see a blend/mixer mounted of the firewall. Remove that one 10mm bolt holding it down. Now you can pull the alternator out from underneath those hoses by carefully lifting up on them. I found it came out easiest with the pulley side towards the motor.
Put the new alternator in the reverse. Tension the belt to the marks you put on the mount and tighten her up. If you forgot to mark the belt or put a new one on, the alternator belt needs 1/4 inch of travel. Meaning if you push on it from below in between the alternator pulley and the crankshaft pulley, it should depress no more then 1/4 of an inch.
Now thank your lucky stars for whoever discovered this trick rather then pulling the cv axle.
I performed this operation about a year ago. I bought the Haines repair manual and went by those directions. The driver's side axle (left side in the USA) has to be disconnected from the transmission to create a clear access path to drop the alternator through. There is no other way to remove it. Note: The inner axle end only needs moving far enough to get the alternator past. The axle is very difficult to remove completely from the vehicle, so I left the outer end in the hub and the inner axle end held up with wire to prevent damage to the cv joint or rubber boot.i just took the top driver side motor mount off and used a floor jack and jacked the motor up far enough to slip the altinator out it wasnt easy but a lot better than pulling and axle
I just changed the alternator on my 1986 Honda Accord (carborated). I did not need to remove the axle like everyone says. Once the old one is disconnected, it can slip along the firewal on it can be pulled out on the passenger side once it is free of the speedometer cable. I did have to remove one bolt. My buddy says it was for a heat selector valve. Once that was out of the way, it slipped out and put the old one in. It really helped to have a second person though. The total repair time was about two hours. It was my first alternator change and a pleasant experience.
If its fuel injected you can remove the air cleaner housing and remove it from the top, if its carbureted you must remove the left axle. But if you are careful , you can unbolt the alternator then pry the axle forward just a little bit so you dont have to remove the axle
On an 87 Accord with manual transmission (with carb.). You can remove the alternator by removing the hoses from the heater core on the firewall,remove the bolt that fastens the heat selector valve assemby to the firewall, pull the hoses and the assmbly out of your way, remove the air filter assembly from the carb. The alternator can then be worked out along the firewall on the passenger(right) side of the car. This is much easier than removing the drive axle. I don't know if this will work with automatic trans.
On an 86 Accord with automatic transmission, we just unbolted the alternator then worked it along the firewall, over to the passenger side of the engine. In order to do this we had to remove one bolt that holds the lower hose to heater core selecter. Then pull the hoses off and it came right out. It goes in the same way and we just had to replace the hoses we romoved because we had to cut them off. Very easy job and the hoses are not expensive. Taking the drive shaft off is bull crap. Its like a whole nother project and I would not recommend attempting to remove the drive shaft unless you absolutely have to. Came out beautiful!
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The same thing can be accomplished on the 87 accord auto trans without removing the transaxle but you will have to remove the brake master cylinder. The alternator can be squeezed out the top this way but the bracket can not be attached to it or it will not fit through. There are also a few minor hoses and lines that will have to be undone and moved out of the way. The car I have is the LXI hatchback with a 12 valve engine that is super wide. On this car the around the back method would not work and removing the air cleaner still did not buy enough room because the manifold and the FI were in the way. Removing the master cylinder seemed a better option to me because I did not know how, or want to mess with the axle. This is a bad option however if you don't know how to bleed brakes.
