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Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the internet.
Hi. I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20 plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1A Auto.com. The right parts installed correctly. That's going to save you time and money. Thank you and enjoy the video.
In this video we will be replacing an alternator on this 97 Expedition same as a Navigator or 97-02 Expedition plus 97-03 F150 probably the same as the other trucks too. They just probably use larger capacity alternators. Tools you will need are various millimeter sockets and things, screwdriver and pliers and maybe a telescoping magnet if you tend to drop the bolts like I do.
Now with the fan belt out of the way there are two bolts that have to be removed from the alternator. One right there and then one on the opposite side which is a little difficult to film. You also want to remove your trim cover here which is also a 10 mm bolt. Now you are going to want to get down to a 10 mm bolt right down here. This holds this spark plug bracket on here. Then there's another 13 mm one right here. Sorry that was 10 mm. Then the telescoping magnet is always a good tool for retrieving the bolts. There is one more 10 mm bolt here. You can see here that the red cap on the alternator comes off.
Here's a better view. There's an 11 mm nut on the back of the alternator here. Now I'm removing that 11 mm nut. That allows this harness to come off. Now after removing that we still have two harnesses hooked right here and here.
Sometimes manufacturers make things a little more difficult then they need to be. This would be one of those times just to disconnect this connector here. I'm going to put a screwdriver in here, hold it with that hand and then I'm going to try and grab hold of the plastic part of the connector. You don't want to grab a hold of the wire and try and pull it. Let's see if I can't get this thing to come off and there it comes. Then this other larger connector here; what I'm going to do is work my screwdriver in from the back side. It's probably really hard to see. I apologize, but I'm doing the best. Using the screwdriver from the back side, pry the clip away and now the harness is free.
Now you are going to want to remove this hose bracket here. It's a 15 mm. You want at least to loosen it up enough so that you can flip it down all the way here. Then you can reach in and free your alternator, but be careful of the throttle bracket.
This is our old alternator. This is our new alternator from 1AAuto. You can see it's all the same. It's going to bolt in exactly the same. Here are the connections, same, same, same all the same. I did take the posts off the back of this so you can disconnect it differently. It's the same thing it just has this extra post on it. This alternator is working fine still so we are going to reinstall that back into the vehicle.
Lower our alternator back down and in. Bring our harnesses up. Reconnect them. Pull this up and reconnect this onto the back. Here when you're tightening this up on the back of the alternator, tighten it up some, move the connection around. It does go into a slot so just move it back and forth and make sure that it's in there correctly. That's in there tight. Put your cap on the back of it. Put it back into place. Work this bolt in first. Careful on the alternator. Now do the other bolt on this side. Get in the place too. Feed it in there. I've got two mounting bolts in seated. Tighten them up by hand now. If you pull them tight. Torque spec is probably about 35 foot pounds so it's getting nice and tight with this small handled wrench. There's one on this side. Now I will put the three bolts back into this bracket and I'll tighten up this hose bracket. So we are just going to fast forward during this. This is a 15 mm nut holding that hose bracket on and then the three 10 mm bolts that hold that spark plug bracket. Then briefly you will see me put the trim cover back on the top of the engine. Here we go. There's the trim cover. We're going to fast forward also through putting the serpentine belt back on. If you do need to see this in regular time just check out our other videos. We do have a video for just the serpentine belt on the Expedition, F150 and Navigator. Then once the belt is back on then you will see me reconnect the battery, connect the battery, start your truck up and make sure that your belt isn't making any noise, that it's routed correctly and make sure also your battery light goes out and your volt gauge is up around 13 volts. Then you should be all set.
We hope this helps you out. It was brought to you by www.1AAuto.com your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free 888-844-3393. We are the company with you on the internet and in person.
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Hi, I'm Mike from 1A Auto. We've been selling auto parts for over 30 years. We're dedicated to delivering quality auto parts, expert customer service, fast and free shipping, all backed by our 100% satisfaction guarantee. Visit us at 1AAuto.com, your trusted source for quality auto parts.
You want to disconnect your negative battery cable, ours is a 10 millimeter, yours may be 8 millimeter. Loosen it up and take the cable off and set it aside.
You want to remove this throttle body cover, two 10 millimeter bolts on this side and one over on the passenger side. Rremove those 10 millimeter socket and ratchet. Loosen the throttle body clamp with a flat blade screwdriver and just kind of pull up and down on the whole ducting. There are tubes that go on the side. Once you pull it off the throttle body, you can twist a little bit and pull those tubes free. Pull the clamp for the air filter off, and there's two connectors—one easy to see here. Press down on the tab and disconnect. You may press down the tab, use your screwdriver, and pry a little bit to help loosen it up. And connector's off. And then there's another connector. Press the tab and disconnect. And the intake tube comes up and out.
Okay, you can see we have a lot of stuff off the front of our engine, which is good. So we can show you how the belt routes, but obviously it's going to be more compact for you. Here at the top, the belt's on the alternator. Goes down around the power steering pump, back up around your water pump, then down and around the crank, up and around your tensioner back down for your A/C pulley, and then back up across this idler pulley and to the alternator.
You're going to want to feed a breaker bar up from the bottom. And you're going to have the fan here, but you should be able to reach up and in and get your breaker bar in. Grab and pull down. Once you pull down, you can flip it off of one of the pulleys, and then release your breaker bar slowly and take it out. And now you can reach down, bring the belt up, flip it off the water pump, and pull it up and out. And then pretty much the hardest part will be get it off your A/C compressor and pull it up through.
Top and rear of the alternator, there are three 10 millimeter bolts: One, two, three. Remove those to get this bracket out of your way. Now tthere's wo 10 millimeter bolts at the bottom, and you'll come down with a short extension and remove them. Then you can remove the screws by hand the rest of the way. Do have to kind of lift up on the alternator. Then you pull the alternator up and around.
Disconnect this lead, use a screwdriver, pry up and off and then under here, there's a 10 millimeter nut. 10 millimeter socket and ratchet and remove the 10 millimeter nut. And a small flat blade screwdriver, pry up and remove that lead. Then you can take your alternator out.
Here's a new alternator from 1A Auto. It's exactly the same dimensionally, and it's going to install just like your original. On the backside, it has the same connections. We did disconnect the battery cable from the backside. You could either take this off or just take the cable apart and then hook the cable onto the new part from 1A Auto. But the new alternator from 1A Auto is exactly the same as the original, and it's going to bolt in exactly the same. And if you're getting the intermittent battery light, that's usually a sign that your alternator's going bad and you need to replace it.
Depending on your preferences, if your new alternator comes with this part attached, you can just disconnect the battery cable from here with a 10 millimeter socket ratchet. Remove the nut just like you did on the other one and take it apart. And if you don't disconnect your battery, this will be live.
Put your new alternator down and in, roughly in place, put a bolt in, and get it started. Get the other bolt in. Just make sure this bracket is lined up correctly somewhat, and start your other bolt in. Tighten the bottom bolts preliminarily, and install the three top bolts. These rear ones are 10 foot-pounds. Torque the two front bolts to 15 to 20 foot-pounds. And now feed your leads back in place underneath the bracket. Connect one, two harness connections. And then connect your battery cable.
Here we install the serpentine belt, and then this is just another audio clip to use for some of the things. Obviously we have a lot of stuff removed, this is so we can show you this process easier. But you will have to contend with your fan and stuff. Take a loop between the idler and the tensioner pulleys, push it down in, and you can get it from below, but push it down in and put a loop over your A/C. Then take your belt, push it down underneath your crankshaft, and put a loop around the crankshaft. Okay, and then it comes up over the water pump and down over the alternator, and we'll leave it off of the power steering pulley, that'll be the last part we put on.
Okay, so we're going to use a half inch ratchet and the bigger ratchet you have, the better because you're going to want to feed it up into here. Get it into your tensioner, and keep in mind your fan will still be on, for some repairs. Get that ratchet as high as you can and then reach through, pull the tensioner down and then pull your belt onto your power steering pulley. It's not working on the power steering pulley, let it come off the water pump pulley.
Get it on the power steering pulley. Sometimes it's easier to push it up and onto the smooth pulley. But again, you'll have your fan in the way in some places. And release the tensioner and remove your ratchet. Then put your air intake in place, back in place over here. Tab winds up there, and this clamp goes on. Just reach down and make sure nothing's getting pinched.
Lock that down into place and your mass airflow connection, reconnect it. Reconnect this connector, tube down here goes in and in there. Flat blade screwdriver to tighten up the clamp that holds it into the throttle body. And put the throttle body cover back in place, and kind of move it around a little bit. Figure out where the bolt hole is. I'm actually cheating, just looking right through here. I can see there, start it up and then push this side down into place and start my two bolts over here and then tighten them up.
Then reconnect your negative battery cable, put it on and tighten up the bolt. Again, ours is 10 millimeter, yours may be different.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
