How To Replace Alternator 2001-06 Hyundai Elantra
Created on: 2013-05-17
Watch and learn how to access, remove, and install a new alternator if yours is broken with the help of this video
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step 1 :Disconnecting the Battery
- Disconnect the negative battery cable with a 10mm wrench
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step 2 :Removing the Radiator Fan
- Disconnect the radiator overflow hose from its clip
- Remove the connector from the radiator fan control unit
- Remove the two 10mm screws holding in the radiator
- Pull the radiator fan up and out
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step 3 :Removing the Serpentine Belt
- Remove the 12mm bolt holding the adjustor on the alternator
- Remove the adjustor
- Remove the lower 12mm nut from the bottom of the alternator
- Push the alternator forward
- Pull the belt off the alternator
- Pull the belt off by hand
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step 4 :Removing the Alternator
- Disconnect the wiring harness
- Remove the cap from the power wire
- Remove the 10mm nut from the positive cable on the alternator
- Pull the alternator up and out
- Remove the bolt on the bottom of the alternator
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step 5 :Installing the Alternator
- Make sure the compression fitting is down by lightly tapping it with a hammer
- Push the alternator down into place with the alternator towards the engine
- Insert the tensioner into the alternator
- Tighten the 12mm bolt, but not all the way
- Insert the 10mm nut to the positive cable on the alternator
- Insert the cap from the power wire
- Connect the wiring harness
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step 6 :Reinstalling the Serpentine Belt
- Familiarize yourself with the route of the serpentine belt
- Loop the belt by following the diagram
- Pull the belt over the alternator
- Tighten the tensioner with a 12mm socket and ratchet
- Tighten the lower 12mm nut from the bottom of the alternator
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step 7 :Installing the Radiator Fan
- Slide the radiator fan into place
- Insert the two 10mm screws holding in the radiator
- Connect the connector to the radiator fan control unit
- Clip in the radiator hose
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step 8 :Disconnecting the Battery
- Connect the negative battery cable with a 10mm wrench
Tools needed
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12mm Socket
10mm Wrench
10mm Socket
Ratchet
12mm Wrench
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Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and the next time you need a part for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace an alternator in this 2005 Nissan Elantra. It's pretty much the same for any 2001 to 2006 with the 2.0-liter 4-cylinder. Tools you'll need are 10mm and 12mm wrenches, as well as a socket and ratchet. You might need a pipe or something for a little bit of extra leverage.
Using a 10mm socket wrench to remove the negative from the battery, set that aside. I'm removing the radiator overflow hose from its clip, pulling it aside, and undoing the clip for power to the fan. Clip on top, pulling that aside. I'm locating the two 10mm bolts right here and right here. I'm going to push the radiator fan just a little bit away from the radiator and pull up.
All right, I've located the 12mm bolt that holds the adjuster on the alternator. I'm using a pipe for extra leverage. We'll just fast-forward here. You want to take that bolt all the way out, and take the adjuster out as well. I've located the lower nut for the alternator right here, right next to the oil filter. Using my 12mm wrench and my pipe for extra leverage, I'm taking the tension off the adjuster with a 12mm wrench. With my tensioner loose, I can push the alternator forward and sneak the belt off.
I'm going to disconnect the alternator pushing the clip and pull it out. Below the harness is a cap and there's a 10mm nut underneath. We'll just speed it up here as we take that nut off. That nut holds the battery wire onto the alternator. I'm pulling the alternator down now. If it's a little tight, you can always use a pry bar in here. I'm going to pry it, force it past the bracket, and down as far as it will go. I'm going to wiggle the alternator loose and I'm going to position it carefully so that the harness and power are towards the engine. Then, just find the best way to pull it up.
We're actually just putting our old alternator back in. It's in fine shape. We're using a little bit of oil just to make it so it's easier to slip into the bracket. For a new alternator, you'll have to transfer that bolt. Just install it in your new alternator lightly.
If you're putting in an existing alternator, you're going to want to tap this compression fitting all the way down. If you're putting in a new alternator, you don't have to worry about this step. Before you go putting the existing alternator back in, you better check to be sure this is all the way down. Just tap it in or it will obstruct you when you go to put it back into the mounting bracket. I'm going to, again, keep the harness towards the engine and slide it past the O2 sensor and the engine dipstick, and carefully drop it back down.
It just takes a little bit to work that bolt and the alternator back into the bracket. Again, if you have a new alternator it will slide in a little bit easier because that compression fitting won't be engaged. I'm putting the tensioner back into the bracket and into the alternator. We'll just speed up here as we use a socket and ratchet to, you just want to get that bolt in close, so you don't want to tighten it yet. You don't tighten it until you get the belt on there and tighten up the belt.
I'm reconnecting the lead to the battery, close the cover, plug in your harness. If you took your belt all the way off, probably the easiest way to get it back on is to take off this access panel behind the passenger's front wheel. Then, you can reach right up in there and get the belt on the easiest way. If you're doing an alternator installation, if you don't take it all the way out, it's probably easy enough to just flip it right back onto the alternator, so you might be able to skip this step.
Put the alternator belt back up, get it on the top pulley first, and around the alternator and around the crank. I'm going to fast-forward here slightly. The belt's back on.
Now, we're retightening that tensioner. You basically want to tighten it up until you can grab the belt between the pulleys, and you should be able to move the belt up and down between an eighth and a fourth of an inch actually closer to an eighth of an inch.
Once it's that tight, then you can use your 12mm and tighten the bolt that's on the back of the tensioner that goes into the alternator. I'm tightening up the lower nut on the alternator. We're just going to reinstall the original fan because it tested out fine, but the replacement from 1A Auto is going to be a direct replacement fit.
We've got the two tabs on the bottom here, and they're going to slide into two tabs at the bottom of the radiator. I'm going to install my bolts. I'm going to plug the connector back in and put the radiator drain hose back on. I'm reconnecting the battery.
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