Terraza FWD V6-3.5L VIN 8 (2005)
Drive Belt: Testing and Inspection
Drive Belt Falls Off
Drive Belt Falls Off Diagnosis
Diagnostic Aids
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If the drive belts repeatedly falls off the drive belt pulleys, this is because of pulley misalignment.
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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.
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If the drive belt is the incorrect length, the drive belt tensioner may not keep the proper tension on the drive belt.
Test Description
These numbers refer to the step numbers on the diagnostic table.
2. This inspection is to verify the condition of the drive belt. Damage to the belt may have occurred when it came off of the pulleys. The drive belt
may have been damaged, which caused the drive belt to fall off. Inspect the belt for cuts, tears, sections of ribs missing, or damaged belt plies.
4. Misalignment of the pulleys may be caused from improper mounting of the accessory drive component, incorrect installation of the accessory drive
component pulley, or the pulley 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.
5. Inspecting the pulleys for being bent should include inspecting for a dent or other damage to the pulleys that would prevent the drive belt from not
seating properly in all of the pulley grooves or on the smooth surface of a pulley when the back side of the belt is used to drive the pulley.
6. Accessory drive component brackets that are bent or cracked will let the drive belt fall off.
