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Serpentine Belt Replacement on a 2006 Chevrolet Silverado (and any GMT800 V8)


This is a discussion on Serpentine Belt Replacement on a 2006 Chevrolet Silverado (and any GMT800 V8) within the Tech How To forums, part of the TMC TECHNICAL category!
How to Replace the Serpentine Belt in a 2006 Chevrolet Silverado A serpentine belt is an important part of any ...

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Old 09-24-2009, 07:54 PM
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Serpentine Belt Replacement on a 2006 Chevrolet Silverado (and any GMT800 V8)

How to Replace the Serpentine Belt in a 2006 Chevrolet Silverado


A serpentine belt is an important part of any engine. The serpentine belt is so-called because it generally runs multiple accessories and "snakes" around under the hood. On a Chevrolet Silverado, the serpentine belt drives the alternator, power steering and water pump for the vehicle: Generally, the V6 model will have one serpentine belt for all components, while the V8 will have a separate belt for the air conditioner compressor.

Tools You'll Need:

15mm Wrench and a 3/8 Drive ratchet and short extension.
Replacement belts , I used Dayco # 5040378, for AC and 5060930 accessory drive.


Click the image to open in full size.Click the image to open in full size.

1. Step 1
Find the auto-adjusting belt tensioner pulley. The belt tensioner can be located using a belt routing diagram, which you should find on the radiator support.

Click the image to open in full size.Click the image to open in full size.

2. Step 2
Use your wrench to rotate the bolt on the belt tensioner clockwise to release tension on the belt.

Click the image to open in full size.

3. Step 3
Slip the old serpentine belt off of the pulleys and take it out.

4. Step 4
Using your 3/8" Drive ratchet and short extension, rotate tensioner for AC Compressor clockwise and remove the belt. Check the idler pulley for play and replace if needed. Route the new belt around the crankshaft pulley and around the compressor pulley, using your ratchet rotate the tensioner clockwise and seat the belt.

Click the image to open in full size.Click the image to open in full size.

5. Step 5
Use the belt routing diagram again to route the new belt. If you can't find a routing diagram in your documentation, or under the hood, you can use the Dayco product site where belt routing diagrams are in hyperlinks next to the belt description. Enter make, model and year to get the right routing diagram.
Link to Dayco: http://www.mvreader.com/multiview/da...erchange=1&l=n

6. Step 6
Rotate the belt tensioner again to allow the belt to be fully installed.

7. Step 7
Make sure the belt is well seated on all of the pulleys.

Click the image to open in full size.

Click the image to open in full size.

8. Step 8
Run the engine and observe to make sure the belt is installed properly.



One note: My truck is equipped with a 145 amp alternator and it looks like this. If yours looks different you have the 105 amp alternator.

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Last edited by Bigredmariner; 09-24-2009 at 09:12 PM.
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Old 09-24-2009, 07:56 PM
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Oh yeah forgot to mention that this only cost me $55.00 from Advance Auto Parts.
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Old 09-24-2009, 07:57 PM
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nice job Jarrod
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Old 09-24-2009, 09:05 PM
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Cool!
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..


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Old 09-24-2009, 09:10 PM
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Super job!

I really need to change out my AC belt.
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Old 09-24-2009, 09:11 PM
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One thing, you need to clean off your zerk fittings!
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Old 09-24-2009, 09:13 PM
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Originally Posted by Black02Silverado View Post
One thing, you need to clean off your zerk fittings!
I really expected that out of somebody, just not you Nick.
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Old 09-25-2009, 09:22 AM
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were you having the squealing, or was it just time to change preventive maintenance style..
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Old 09-25-2009, 09:29 AM
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were you having the squealing, or was it just time to change preventive maintenance style..
+1

My GMT900 is squealing on cold starts, and I'm wondering if it is the belt.

Thanks
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As usual... Nick is the voice of reason!
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Old 09-25-2009, 10:02 AM
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Quote:
Originally Posted by Z71 Kris View Post
were you having the squealing, or was it just time to change preventive maintenance style..
+1

My GMT900 is squealing on cold starts, and I'm wondering if it is the belt.

Thanks

It is probably either the belt, or one of the tensioner / idler pulleys.
When you change the belts...check all of the different pulleys REAL GOOD for signs of a bad bearing.
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