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How to Replace Serpentine Belt 00-05 Buick LeSabre

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  1. step : Remove the serpentine belt (0:25)
    • Locate or draw out a serpentine belt routing diagram.;
    • Use a 15 mm bolt on the tensioner to release the tension from the belt.
    • Remove the belt.
  2. step : Install the serpentine belt (0:52)
    • Use your routing diagram to thread your new belt from 1A Auto around all the pulleys correctly.
    • Use your 15 mm wrench again to release the tension and get the belt over the last pulley.

Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the internet. We hope this 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.

In this video we're going to show you how to remove and replace the serpentine belt on this 2003 Buick LeSabre, same as most 2000 to 2005 LeSabres with the 3.8 Liter non-supercharged engine. Only tool you will need is a 15 mm wrench or a socket with a ratchet. To remove your serpentine belt there's a 15 mm right here, hook the wrench right on there, push down hard, and pull your belt off, and then slowly let your wrench back out. Okay, and now you just unwind your belt from all the different pulleys, and pull it up and out. Okay, a little hard to film but you'll just kind of see what I'm doing. Take a big loop and you want to put it way down, right side to the front of the engine here, there's 2 pulleys, there's the AC compressor pulley which is over here to the right, and then the big crank pulley which is kind of in the center.

Put it down and around those, reach down, make sure you get all the end of the crank pulley, then it comes up, around your water pump here, okay. Then up and around onto your tensioner there, then take another loop and go down around your power steering pump, okay, and that's how it routes. Now just make sure you get everything kind of in the grooves where it should be okay, so you have your belt right there. Okay, now firmly grab your belt. Okay, just going to hold my belt up, put my wrench onto my tensioner here. I'm sorry. Kind of get the camera at an angle, but basically also I'm doing is pulling up on the belt with my right hand, then I push down on that wrench with my left, then pull the belt up and onto the alternator pulley. Okay, now just check, make sure its on all the pulleys correctly. It's actually not on my crank pulley correctly. I'm just going to put my wrench on, take the tension off, reach down, push it on there a little bit, and let back off, and now it looks good.

We hope this 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.

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Marker / Writing Utensil

  • Ratchets & Related

  • Ratchet

  • Sockets - Metric

  • 15mm Socket

  • Wrenches - Metric

  • 15mm Wrench

2000 - 2005  Buick  LeSabre
1999 - 2005  Buick  Park Avenue
1998 - 1999  Chevrolet  Lumina
1999 - 1999  Buick  Riviera
2003 - 2004  Mercury  Marauder
1998 - 1999  Chevrolet  Monte Carlo
2000 - 2003  Pontiac  Bonneville
2000 - 2005  Pontiac  Bonneville
2010 - 2010  Hyundai  Genesis Coupe
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