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How to Replace Serpentine Belt 07-13 Chevy Suburban

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  1. step : Removing the Serpentine Belt (0:25)
    • Familiarize yourself with the route of the serpentine belt
    • Insert the 15mm socket and breaker bar onto the tensioner
    • Turn the tensioner clockwise to loosen the belt
    • Pull the belt off the alternator
    • Release the tensioner
    • Pull the belt off by hand
  2. step : Installing the Serpentine Belt (2:21)
    • Loop the belt under the idler pulley
    • Pull the belt over the alternator
    • Bring it around the power steering pulley
    • Bring it around the idler pulley
    • Bring it around the water pump
    • Bring it around the crank pulley
    • Pull the tensioner clockwise with the 15mm socket and breaker bar
    • Feed the belt over the tensioner
    • Release the tensioner

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.

Okay, so you don't have to remove the intake tube here to do your serpentine belt, but it just makes it a lot easier to film. So, we're going to start by loosening this tensioner, which tensions the drive belt. But before removing your belt, there's usually a belt path diagram under the hood somewhere. This truck doesn't have it, but you can also take note of it, and draw your own on a piece of paper. So, we're going to take a 15 mm socket, and a breaker bar, and put it on the tensioner. Going to push it down to loosen it. Can pop the belt off. It's just going to come right off. Then you can slowly let the tensioner go back. That's about as far back as it's going to go. Let's see if I can get it up, over the hose here. Then pull the breaker bar off.

All right, so this is the old belt here. It's pretty worn out, you can see it's getting glazed. Inside, the ribs are pretty worn. Even had a little pin hole here, right here, there's a little pin hole in it, so that's no good. This is the new belt from 1AAuto.com. You can see it's got the same amount of ribs, it's the same width. It's just brand new. That's going to fit great. It's a perfect match in length to the old belt as well.

Okay, now we're going to install our serpentine drive belt. Lay it down, like that. Then run it up, around the idler pulley, over the alternator. Down around the power steering. Goes up and over the water pump. And goes back, down around the crank pulley. Make sure it's sitting in all the pulleys as you go around them. It's sitting in all the pulleys. Can actually pull it tight a little bit. Then take our breaker bar, slide breaker bar around the belt, so I can push it down. Feed the belt over. Make sure it stays in the crank pulley. Can get a little tricky. Kind of walk it over the pulley tensioner. This pulley's new, so it's not as stretched out as the old one, so it's going to be a little bit more difficult to get on. But just before you release it, make sure it's around all the pulleys, and seated in the grooves. Once you're sure it's like that, just gently release the tensioner. You can see it's nice and tensioned up. And it's looped around all the pulleys.

Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.

Tools needed for replacement:

    Ratchets & Related

  • 1/2 Inch Breaker Bar

  • Sockets - Metric

  • 15mm Socket

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