Ford 2 Piece Serpentine Drive Belt Component Kit TRQ BPA18089

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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks.

In this video, we're going to show you how to replace the serpentine belt idler pulley. This is a pulley that doesn't turn any accessories; it's just a pulley that holds the serpentine belt in its routing position. It's pretty easy. There are two tools you'll need. You'll need a 15mm socket with a ratchet handle and you'll also need a T50 Torx driver socket, with the same ratchet handle.

This truck has the 5-liter V8 engine in it. Obviously, your serpentine belt's right here. The first thing you want to do, though, is make sure that your belt diagram is intact. That's going to be a big help when you're putting the belt back on. It actually gives you a little diagram of how to do it. You'll need a 15mm socket on a ratchet. You take the socket and ratchet, put it right down here, on your tensioner bolt, and then you pull this counterclockwise. You can see that the belt loosens up when you do that. So, I pull the wrench that way, then you just slip it right off this idler pulley here. Then, slowly, let your wrench back, and take it off. Then just pull the belt off. Pull it right up. We have to reach down to pull it off the crank pulley, and the belt comes right up and out.

Once you have the belt off, then you can grab on the pulleys. You shouldn't feel any play, and they should rotate smoothly. This one actually has a lot of catching in it. We'll replace it for you. You'll need a T50 Torx driver. Just put that right into the bolt, make sure it's in there well. Once you get the bolt going, it comes off.

There's our original. The new one from 1A Auto is exactly the same. The original is- I'm sticking my finger in there and it's all bound up. This one, obviously works very nicely. It works well. I'll put the bolt in. Just put it right on. It's tight.

To put the belt back on, what you're going to do is take a loop and feed it down, and get it on this crankshaft pulley first, and then hen up around this air pump. Then you're going to flop it over, down here to this power steering pump, up to the A/C, then across. We'll put it on the alternator, and keep it off the idler pulley first. Here's a new belt from 1A Auto. We'll put it down. We'll reach down on the other side of the motor, and pull a loop down onto the crankshaft pulley. Pull some of the slack out. Then take a loop and go down to the power steering pulley way over here on the other side. Bring it up onto the A/C pulley. It goes down around and it comes up from the crankshaft pulley to the air pulley, and then it goes around the tensioner, then around the alternator. This belt is a little bit tighter. What we're going to do is put it around the alternator first. What I'm going to do is just put the socket, I've got the belt around the socket here. Take some tension off with this wrench. First, I'll get it right on the tensioner pulley. Now it's actually on the tensioner pulley. It's on everything correctly. It's on the A/C, it's on the power steering, here on the water pump, way down underneath the crank, and everything. Now, I can pull the tensioner back. Take it and push it underneath this idler pulley. Let the tensioner off. It's all set.

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