How to Replace Serpentine Belt 2003-04 GMC Envoy XL
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, Envoy XL, or Envoy XUV
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step 1 :Disconnecting the Battery
- Disconnect the negative battery cable with an 8mm wrench
-
step 2 :Removing the Air Intake Hose
- Loosen the two air intake hose clamps with a flat blade screwdriver
- Remove the T30 Torx bolt from the air intake hose
- Pull the intake hose up and off
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step 3 :Removing the Serpentine Belt
- Familiarize yourself with the belt routing diagram
- Attach a 15mm socket and ratchet to the tensioner
- Push the tensioner down to loosen the belt
- Pull the belt off the center pulley
- Carefully release the tensioner
- Pull the belt up and out
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step 4 :Reinstalling the Serpentine Belt
- Loop the belt around the crankshaft pulley
- Bring it over the water pump pulley
- Pull the belt over the alternator pulley
- Loop the belt around the power steering pump pulley
- Bring it over the tensioner
- Make sure the belt is routed correctly, using the belt diagram
- Attach a 15mm socket and ratchet to the tensioner
- Push the tensioner down to loosen the belt
- Pull the belt onto the center pulley
- Carefully release the tensioner
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step 5 :Reinstalling the Intake Hose
- Put the intake hose into place
- Tighten the two intake hose clamps with a flat blade screwdriver
- Tighten the T30 bolt into the intake hose
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step 6 :Reconnecting the Battery
- Reconnect the negative battery cable with an 8mm wrench
Tools needed
-
15mm Wrench
Flat Blade Screwdriver
15mm Socket
T30 Driver
Ratchet
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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.
This video we're going to show you how to replace the serpentine belt on this 2003 GMC Envoy XL with the 5.3 liter V8 engine. The items you'll need for this is a 15mm socket and ratchet or a wrench, a T30 Torx bit or driver, 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, and then, removing this T30 bolt up here, and we'll just fast forward as Mike does that. Technically, you don't have to remove the air duct but it does make it a lot easier to see down in there and route the belt and things like that. Now, pull this hose free and 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, and you just want to refer to this as you're trying to put the belt back in place and make sure that you have one of these before messing with the belt. Then, using a 15mm socket and ratchet or a 15mm wrench and another wrench for extra leverage, just push down on the tensioner and then pull the belt up and over that center pulley and carefully relieve the tension on the tensioner. Now pull your serpentine belt up and out.
As you go to put the serpentine belt back in place just refer to this belt diagram again. You want to make sure it follows this exactly. Put the belt back on, just feed a loop down to your biggest lower pulley which is the crankshaft pulley. Make sure it goes around that. Then pull it up over your top pulley which is your water pump and then feed that loop down to your power steering pump pulley and then back here to your tensioner and you're ready to reattach it. Put your wrench or socket and ratchet onto the tensioner and pull back on the tensioner, and just push your belt underneath that center pulley. Then, carefully release the tension and make sure your belt is on all the pulleys correctly.
Now, feed your air intake hose back down into place and make sure to push down all the way, and then push this end back into place and then tighten up those two hose clamps, and I'll tighten up the T30 bolt. Then, 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.
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