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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
Is it easy to replace an alternator in a Toyota MR2?
It is one of the more difficult jobs due to the fact that is is located on the passenger side by the rear wheel. I tried to take it out and realized that it was too cramped and tight to do it myself. I took it to my mechanic, Nguyen's in Santa Clara, CA, and it took his shop two hours to do it. My advice, take it to a shop unless you want to completely frustrate yourself doing it. bo
The Mk1 NA alternator is easy, two bolts and an electrical connection. Alternator is mounted like earlier automobiles, with a long bolt on bottom and an adjusting bolt on top. The Mk1 SC is much more difficult, as it was moved to the front of the engine to make room for the supercharger, and is above the AC compressor. To change the SC alternator requires either removal of the AC compressor, or (and not easy) it can be removed and reinstalled through the engine's air vent. Either way is difficult. As far as the sc model I found it far easier to remove the 3 bolts and unplug the side fan. Lay the fan all the way to the bottom of the engine compartment below and out of the way of the alternator. (You do not need to pull it completely out of the car.) Remove the outside passenger side cowl with 2 screws. Loosen the tensioner on the alternator belt then remove the belt from the alternator pulley. (First loosen the pulley nut and then back off the long tensioning bolt from the bottom.) Unplug the green plug from the alternator. Unbolt the bolt from the top and the long bolt from the bottom of the alternator. A short pry bar helps lifting the bottom of the alternator from its bracket. Then undo the 10mm nut on the charge wire. Now reach through the quarter panel and ease the alternator back and out through the vent hole in the quarter panel. It took me 30 minutes. I promise you there is no need to remove exhaust, compressor, distrubutor, or engine/trans. Hope this helps.
Can a 220 volt motor be converted to 110 volt?
only if it,s a multiple voltage motor, there should be a plate showing the hook up, if,s showing 110v /220v then yes other wise NO,
How to change a 2004 dodge neon alternator belt?
The larger serpentine belt controls several functions. On this model Dodge decided to put the tensioner right up against the frame which will take you HOURS to remove parts around to gain access to the tensioner. If you get a small crowbar and apply leverage to the tensioner (from under the engine) and rent (if you return it there is no charge) a kit with a flat wrench from Advanced Auto Parts you can get it in there. Just did this today and everything is working fine. This is a two person job.
Jmike
NO/ I JUST DID MINE...COMP IS FINE..IT AUTOMATICALLY ACOMMADATES FOR IT......BUDDY MACK..
Will a 1995 Jeep Wrangler alternator fit in a 1997 Jeep Wrangler?
I do not think so, my 89 YJ had a normal alternator belt, but my 97 TJ has a serpentine belt, so aside from any mounting differences the drive system would be different.
What would cause the car to keep running once ignition turned off if headlights were still on?
Headlights run off the battery not the ignition...
How do you replace the alternator on a 1999 Pontiac Grand Am 6 cylinder?
Book Says: 1 Detach the cable from the negative terminal of the battery. If vehicle is equipped with Delco audio system make sure you have activation code prior to disconnect. 2 Clearly label then unplug and unbolt the electrical connectors from the alternator. 3 Remove drivebelt. 4. Remove alternator mounting bolts and the alternator. 5 Installation is reverse of removal.
How do you replace the alternator on a 1998 Nissan Sentra?
After changing one today, I think I would rather pay someone to do it next time. First thing, disconnect the battery. Then take off the top radiator hose and the housing that connects it to the engine(you don't need to take off the radiator hose connecting unit, just take the fans off of the radiator, saves the messy silicone work). You will never get the alternator out if you don't. The next step is to remove the belt. If you are planning on changing the belt then you will have to remove the powersteering belt too in order to get it off. There is an 8mm tensioning bolt between the alternator and the air conditioning compresser. First loosen the 14mm bolt in the center of the idler pully and then loosen the tensioner bolt until the belt slips off. There are three mounting bolts, two on the bottom and one on top of the alternator. Remove these, and the bracket that the top bolt mounts to. Now disconnect the wires from the alternator and the plastic bracket which is attached to the alternator. Finally you should be able to pull the alternator out of the engine compartment. Reverse the procedure to replace the alternator. Here is a list of the tools you will need.
8mm, 10mm, 12mm, 14mm wrenches
10mm, 12mm, sockets and a 3" extension (for bottom passanger side bolt on the alternator use a long 7/16 and a ratchet w/no extension)
Phillips screwdriver
silicon gasket material
bandaids
Small hands and patience will also help with this job.
How do you replace the alternator on a 1989 Acura Integra with AC?
Obviously, the first step is to disconnect the battery.
You'll need to lift the car somehow (either a lift or proper jack stands) and remove the front left wheel. You'll also need to remove the left half shaft (drive axle) as well. If the car is a 5 speed, the transmission oil will drain out when you remove the axle - if it's automatic, you may lose some fluid, but not much.
Once the axle is out, the alternator is at the bottom of the engine bay near the firewall, on the drivers side. It should have 2 bolts holding them on (I believe they're 12mm). Remove the 2 bolts and disconnect the wires on the alternator.
An easier method would be to unbolt the master cylinder from the firewall and slightly (SLIGHTLY!) push it to the side, being careful not to damage the lines, and removing the alternator from the top. I don't remember if you'll have enough clearance on an 89 to do this or not; I know on 90+ it has to come out from the bottom.
To reinstall, reverse the steps. Don't forget to top off your transmission fluid after you're done.
Answeron a 91 integra you can remove it from the top by removing the master cylinder.. although i had to remove it completely including removing brake lines from the master cylinder, which required me to bleed the brake lines.. but easier than pulling the halfshaft off AnswerAfter reading all the posts on replacing Integra Alternators yesterday,I went with the last two posts for a 1990 Integra GS.However,on my 1989,I could only remove the lower portion shield on the wheel well which is plastic.The upper portion is metal and not easily removed.This gave me enough access to the lower bolt,to remove nut and also to align holes on installation(very tight fit,both for removal and installation).I had to pry the alt.off the bottom bracket and slowly tap it in for installation,then align the bolt hole with a podger or round screwdriver.I was also able to wiggle the alternator in and out thru the bottom after removing the oil filter(killing two birds with one stone as car was on jacks).So I was ablt to do it without removing anything except the oil filter.Hope this helps. AnswerI was able to remove the alternator on the 89 Acura integra without removing the wheel, halfshaft or mastercylinder. The top adjustable mounting bolt can be reached from above by moving aside the cooling line to the waterpump. The bottom bolt can be reached from the underside. Both Bolts are 12mm and very hard to reach but not impossible. After you have removed these bolts loosen the 14mm bolt holding the sliding mout in place, this will allow you to swing the mount up giving you the cleareance to lever the alternator out of the very tight bottom mount. Afterdisconnecting the alternator you can remove the oil filter and it will just barely fit past and drop out the bottom. It is still a pain but not nearly as much as removing the halfshaft or mastercylinder. AnswerI removed the left tire and bottom molding to have better access. I followed other instructions to take the alternator out, but what wasnt explained was how to squeeze the damn thing out of the bottom. DO NOT TAKE OUT THE AXLE! It can be done! The oil filter has to be removed for my procedure.With the alternator coming towards the center of the car, you want the supporting brace on the alternator pointing down, the pulley wheel to the right of the car, and the adjusting hole up. From under the car, coming in from the left wheel, go to the center of the car. Looking up to the oil filter threads, there is the left axle to the right of the space and some hard tubes attached to the firewall on the left. The alternator will have to pass those hard tubes and the axle. It seems impossible, but it is a tight squeeze. There is a small bend in the axle and there is a joint with several bolts on the firewall; the alternator will have to pass between these critical points.
With the alternator coming towards the center, you want to rotate the alternator so that the pulley ends up pointing down and the adjusting hole out to the right of the car. The alternator has a circular cage that will have to rotate between the critical point. Imagine the alternator as a clock, with the adjusting hole at 12; there is a knob on this cage at about the 10 o'clock position. This knob must pass to the right side (of the car) of the nuts on the firewall.
If this is confusing, just remember to rotate the alternator with the pulley down and adjusting hole eventually pointing to the right of the car. Don't be afraid to pull it past the hard tubes, but dont get impatient. The alternator will feel somewhat tight, but be patient and work it through the critical point. If you get hung up, do the procedure backwards with the new alternator.
We removed an 87 alt without removing the axle of brake MC but it was a REAL STRUGGLE (20 minutes). It scrapes all the way out. We had to loosen the head pipe that bolts to the manifold for a little extra space to remove the alt. The instructions above are confusing but we would have never attempted this if it were not for this persons idea. We will put in the new alt. tomorrow and try to photograph the alt. orientation as we slide it in place. Can we post photos?
Most likely your timing is Bad ! If you have a fuel and you don't have any vacuum leaks in the intake try to fix your timing.
Where is the voltage regulator on a 1996 Chrysler Sebring jxi 2.5?
The engine computer is the voltage regulator.
Where is the voltage regulator on 1988 Dodge Aries K?
It is part of the engine computer.
It is part of the engine computer.
How do you know if an alternator is bad in 525 BMW?
Its easy to check with a cheap voltmeter-first check batt voltage with car off-should be around 12 volts, take note of reading. Now start car and check voltage-should be higher. If so you are good. If no difference at all or less when you turn on accessories, , it's not charging. If batt voltage is low (10.5 or less) but goes up when running, your batt is on the way out.
How do you change an alternator in A Pontiac Aztec?
you have to remove the washer fluid tank, battery ,and full windshield wiper assembly. there are three bolts that must be removed on the alternator, plus two wires. The alternator sits way in the back under the wiper assembly(passenger side). Almost impossible to get to, right against the firewall, must use a small ratchet wrench, NOT SOCKET-TOO BIG. Hope i could help
How do you replace the alternator on a 1981 Chevy Caprice Classic?
Tools Required:
5/16" box wrench 3/8", 7/16" or 10mm wrench 9/16" socket 1/2" socket 3/8" or 1/2" ratchet 3" extension that fits the socket and ratchet Pry bar.
Removal Procedure:
1) use 5/16" box wrench to disconnect the ground (black) cable from the battery. 2) if accessible, use the 3/8", 7/16" or 10mm wrench to disconnect the wires from the back of the alternator 3) use the 1/2" and 9/16" sockets to remove the three bolts that hold the alternator in place. Remove both of the clamping bolts and the fan belt before removing the pivot bolt. 4) remove the alternator from the mounting brackets 5) unplug the connector from the side of the alternator. This connector usually has a latch that is released by pinching a tab on the connector.
Installation Procedure:
1) position the alternator in the mounting brackets and install the pivot bolt (finger tight) 2) reattach the electrical connector and wires. The 3/8", 7/16" or 10mm nut should be tightened at this time. However, be careful to not over tighten this nut. 3) route the fan belt over the alternator pulley. 4) reinstall the bolts that lock the alternator in the mounting brackets 5) use the pry bar to remove all slack from the fan belt 6) tighten all bolts on the alternator 7) reconnect the battery cable.
What if the new alternator is not charging your 1990 e150 ford van what can you check?
Check the fusable link (wire in between the alt. and battery) to see if it's burned out. Check to see if the alternator light in dash works.
How can tell if the battery is bad or the alternator?
Take the battery to a parts store so they can test it....
Actually you need to test both the battery and the alternator because if your alternator is not functioning correctly it can drain the battery of power...
so just testing the battery may only tell you that you have a drained battery and not reveal the cause...
This testing can be done using an Auto meter which tests the battery and also does an alternator load test...If you do not have a tester you can rent one from an auto parts store,or you can remove the alternator and take it to the auto parts store and have it bench tested along with the battery...usually for free...
Where is the alternator located on 2008 Chevy aveo?
it's in the back of the engine below the manifold and under the air box tube.
It's going to be a long process but what you got to do: Pull ALL the fuses. Now check to see if there is still a draw on the battery. There shouldn't be. Replace one fuse at a time. Each time, check for draw on the battery. Save the radio for last. The clock and memory are a constant draw (a very small one). To check for draw, go get a cheap ammeter at some auto store. Wire it in according to directions, near the battery where you can see it.
Where is the voltage regulator on a 1986 Honda Prelude carb engine 1.8?
it is inside the alternator. If the voltage regulator goes bad you have to change the whole alternator
AnswerIn your 1986 Honda prelude the voltage regulator should be separate from the Alternator. It should be a small black square with a five wire connector if i remember right. It should be mounted on the passenger side strut bubble inside the engine bay. Between the battery and the strut bubble and between the under hood fuse box and the engine. It is held on by two 10mm bolts. I know that this is where the voltage regulator is on my 1985 Honda prelude with the 1.8l carbed engine and since the 84-87 were mostly the same it should be the same on yours.