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Hi, I'm Don 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 A/C serpentine belt tensioner on this 2002 Chevy Suburban with a 5.3 liter V8 engine. It's the same part and similar process on these Suburbans from 2000 to 2008. The items you'll need for this are a new A/C belt tensioner from 1AAuto.com, 10mm and 15mm socket and ratchet, flat blade screw driver, and a 3/8 inch ratchet.
Start off by loosening these two hose clamps using your flat blade screw driver. We'll just fast forward as Don does this. Now just pry this clip out and then pull the hose back. You may need a flat blade screwdriver to help you pry it free and then pull forward and lift it up and out.
Next, remove these two 10mm bolts and we'll fast forward as Don does that. Then pry the clip on this hose out of the fan shroud, and then remove these four clips around your shroud. To remove these clips, you just pry up the center and then pull the clip out. We'll fast forward as Don does this to the other three. Then just pull that hose back and lift the shroud straight up and out.
Right here is your tensioner. Just put the 15mm socket and ratchet on it and push down on the ratchet. This will release the tension on the belt, and you can pull the belt from the pulleys. You want to just reach down, pull it off all the pulleys, and the belt will be free. You can just pull it up and out.
Underneath the front bumper, you'll see this plate and you need to remove these five 15mm bolts. We'll fast forward as Don removes those. Behind the plate, is your A/C belt tensioner and you just use a 3/8 inch ratchet. Just pull down on the tensioner and then pull your A/C belt free. It pulls right off. Right here is your A/C belt tensioner. Sorry for the shaky camera, but you can see it's held in with two 15mm bolts and we'll just fast forward as Don removes those. Then the A/C tensioner will just pull right off.
On the left is the old A/C belt tensioner. On the right is the new one from 1A Auto. You can see they're identical and they'll fit exactly the same. Put your new A/C belt tensioner into place and replace those two 15mm bolts. We'll just fast forward as Don tightens those up. Feed your new A/C belt back up into place and for now, you're really just preliminarily getting it into place, and then, use your ratchet on the tensioner. Now make sure the belt is on all the pulleys and that it's on all the way. Once the belt is in the right position on each of the pulleys, carefully release the tension on the tensioner and pull your ratchet free. Put the skid plate back up into place and replace those five 15mm bolts and tighten them up.
Now, located at the front of your truck, you'll see this serpentine belt diagram. You want to follow this when you're putting your belt back on and really it's hard to show us doing it, so you're going to have to refer to that, but it's pretty simple to follow. Everything is where it needs to be and you can see he starts with the lower pulleys. He just starts feeding the belt down and around each of them following that diagram. We'll fast forward as he does the majority of this. Once you've got it on all but one pulley, push back down on the tensioner and double check. Make sure your belt is on all the pulleys properly and that it's not just half on some of them. Then just get it into position. Then carefully release the tension on the tensioner and pull the ratchet free.
Now to replace the shroud, just push it back down into place. Then, replace those four clips. Just push them back down into place and push the center down to lock them. Push the hose back into place, and then, replace those two 10mm bolts. Now take this air intake hose and push it back down into place on the air intake box and then onto the engine. Then just tighten up those two hose clamps. Then just re-clip that hose to the air intake hose and you're all set.
We hope this video helps you out. 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're the company that's here for you on the Internet and in person.
