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Diagnostic Aids If the drive belt 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 If the drive belt is the incorrect length, the drive belt tensioner may not keep the proper tension Excessive wear on a drive belt is usually caused by an incorrect installation or the wrong drive Minor misalignment of the drive belt pulleys will not cause excessive wear, but will probably Excessive misalignment of the drive belt pulleys will cause excessive wear but may also make the Test Description The numbers below refer to the step numbers on the diagnostic table. 2: This inspection is to verify the condition of the drive belt. Damage may of occurred to 4: Misalignment of the pulleys may be caused from improper mounting of the accessory 5: Inspecting the pulleys for being bent should include inspecting for a dent or other damage 6: Accessory drive component brackets that are bent or cracked will let the drive belt fall 7: Inspection of the fasteners can eliminate the possibility that a wrong bolt, nut, spacer, or
2008 Hummer H3 2008 ENGINE Engine Mechanical - 5.3L - H3
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