Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
Step 1 - 2
Steps 3 - 12
The numbers below refer to the steps in the diagnostic table.
2. This inspection is to verify the condition of the drive belt. Damage may of occurred to the drive belt when the drive belt fell off. Inspect the drive
belt for cuts, tears, sections of ribs missing, or damaged belt plys.
4. Misalignment of the accessory drive pulleys may be caused from improper mounting or incorrect installation of an accessory drive component, or
the pulley may be bent inward or outward from a previous repair. Test for a misaligned pulley using a straight edge in the pulley grooves across 2
or 3 pulleys. If a misaligned pulley is found, refer to that accessory drive component for the proper removal and installation procedure of that
pulley.
5. Inspection of the accessory drive pulleys should include inspecting for bends, dents, or other damage to the pulleys that would prevent the drive
belt from seating properly in the pulley grooves or on the smooth surface of a pulley when the back side of the drive belt is used to drive the
pulley.
6. Accessory drive component brackets that are bent or cracked will also cause the drive belt to fall off.
