M45x AWD V8-4.5L (VK45DE) (2008)
Drive Belt Tensioner: Service and Repair
Drive Belt Auto Tensioner and Idler Pulley
EM-171 Component
CAUTION: The complete drive belt auto tensioner must be replaced as a unit, including the pulley.
REMOVAL
1. Remove air duct (inlet).
2. Remove front engine undercover with power tool.
3. Remove drive belts.
^
Keep auto tensioner pulley arm locked after belt is removed.
4. Remove auto tensioner and idler pulley with power tool.
^
Keep auto tensioner pulley arm locked to install or remove auto tensioner.
CAUTION: Never loosen the hexagonal part in center of drive belt auto tensioner pulley (Never turn it clockwise). If turned clockwise,
the complete drive belt auto tensioner must be replaced as a unit, including the pulley.
INSTALLATION
Installation is the reverse order of removal.
CAUTION: Never swap the pulley between new and old drive belt auto tensioner.