Hi,
Replacing the serpentine belt isn't a difficult job. First, here is a link that explains in general how it's done. You can use this as a guide.
https://www.2carpros.com/articles/replace-serpentine-belt
Here are the directions specific to your vehicle. The attached pics correlate with the directions.
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2005 Chevy Truck Silverado 1500 4WD V8-5.3L VIN B
Drive Belt Replacement - Accessory
Vehicle Engine, Cooling and Exhaust Engine Drive Belts, Mounts, Brackets and Accessories Drive Belt Service and Repair Procedures Drive Belt Replacement - Accessory
DRIVE BELT REPLACEMENT - ACCESSORY
Drive Belt Replacement - Accessory (4.8L, 5.3L, and 6.0L Engines)
Removal Procedure
pic 1
1. Loosen the air cleaner outlet duct clamps at the following locations:
The throttle body
The Mass Airflow/Intake Air Temperature (MAF/IAT) sensor
2. Disconnect the radiator inlet hose clip from the outlet duct.
3. Remove the air cleaner outlet duct.
pic 2
4. Install a breaker bar with hex-head socket to the drive belt tensioner bolt.
5. Rotate the drive belt tensioner clockwise in order to relieve tension on the belt (1).
6. Remove the belt (1) from the pulleys and the drive belt tensioner.
7. Slowly release the tension on the drive belt tensioner.
8. Remove the breaker bar and socket and from the drive belt tensioner bolt.
9. Clean and inspect the belt surfaces of all the pulleys.
Installation Procedure
pic 3
1. Route the drive belt (1) around all the pulleys except the idler pulley.
2. Install the breaker bar with hex-head socket to the belt tensioner bolt.
3. Rotate the belt tensioner clockwise in order to relieve the tension on the tensioner.
4. Install the drive belt (1) under the idler pulley.
5. Slowly release the tension on the belt tensioner.
6. Remove the breaker bar and socket from the belt tensioner bolt.
7. Inspect the drive belt (1) for proper installation and alignment.
pic 4
8. Align the arrow (2) at the throttle body end of the duct with the throttle body attaching stud (1).
pic 5
9. Install the air cleaner outlet duct.
10. Connect the radiator inlet hose clip to the outlet duct.
Notice: Refer to Fastener Notice in Service Precautions.
11. Tighten the air cleaner outlet duct clamps at the following locations:
The throttle body
The MAF/IAT sensor
Tighten the clamps to 4 Nm (35 inch lbs.).
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I hope this helps Let me know if you have other questions.
Take care and God Bless,
Joe
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Wednesday, February 24th, 2021 AT 12:54 PM
(Merged)