Blazer 4WD V6-4.3L VIN X (2005)
Drive Belt: Testing and Inspection
Drive Belt Falls Off
Drive Belt Falls Off Diagnosis
Diagnostic Aids
If the drive belt(s) repeatedly falls off the drive belt pulleys, this is because of pulley misalignment.
An extra load that is quickly applied on released by an accessory drive component may cause the drive belt to fall off the pulleys. Verify the accessory
drive components operate properly.
If the drive belt(s) is the incorrect length, the drive belt tensioner may not keep the proper tension on the drive belt.
Test Description
