Created on: 2014-08-25
How to repair, install, fix, change or replace a broken, noisy, squeaky, worn or groaning serpentine belt tensioner on 02, 03, 04, 05, 06, 07, 08, 09 GMC Envoy, or Envoy XL.
Flat Blade Screwdriver
15mm Socket
T30 Driver
8mm Wrench
Ratchet
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
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 tensioner on this 2003 GMC Envoy XL with the 5.3-liter V8 engine. The items you'll need for this include a 15mm socket and ratchet, an 8mm wrench, a T30 Torx bit, and a flat blade screwdriver.
Use an 8mm wrench to disconnect the negative battery cable. Start off by loosening this hose clamp and this hose clamp, then remove this T30 bolt up here. We'll just fast-forward as Mike does that. Now pull this hose free. Then lift that air intake hose up and out.
Next, you want to locate your serpentine belt diagram, which is located right here on the shroud. You just want to refer to this as you're trying to put the belt back in place. Make sure that you have one of these before messing with the belt. Then, using a 15mm socket and ratchet, or 15mm wrench and another wrench for extra leverage, just push down on the tensioner and pull the belt up and over that center pulley.
Carefully relieve the tension on the tensioner. Pull your belt off your tensioner and then remove these three 15mm bolts. We'll just fast-forward as Mike does that. When you remove the last bolt the tensioner will pull free.
Lower your new tensioner back down with the top bolt in place. Then just line it up and hand tighten the bolt. Replace the other two bolts by hand. Then tighten them all up. Now pull the belt back up, over the alternator, and over the tensioner. At the same time, you want to make sure that the belt is on each of the pulleys correctly. Then just double check with your belt diagram that the belt's in the right order and on each of the pulleys.
Put your wrench, or socket and ratchet, onto the tensioner, and pull back on the tensioner. Just push your belt underneath that center pulley. Carefully release the tension, and make sure your belt is on all the pulleys correctly.
Feed your air intake hose back down into place. Make sure it's pushed on all the way. Then push this end back into place. Then tighten up those two hose clamps. Now tighten up the T30 bolt. Reconnect your negative battery cable.
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.