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Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Power Transfer Unit (Except Hybrid)) >> Diagnosis And Testing >> Power Transfer Unit (PTU) >> PTU Leaks From the LH Side >> Vehicles Equipped with Aisin AW21 Transaxle

Vehicles Equipped with Aisin AW21 Transaxle

WARNING: This page is about a different variant/trim than selected.
NOTE: The compression seal functions as a dust seal and is not the main source of the red ATF leak.

If the leak is red ATF, this indicates the transaxle seal is leaking and needs to be replaced. For additional information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION - AISIN AW21 .

If the leak is tan/brown/black gear lube and not at the vent, check the non-serviceable PTU inboard seal for leakage. If the PTU inboard seal is leaking, the PTU must be replaced. If the leak is from the vent, the PTU may be overfilled. Determine if the red ATF has entered the PTU. If red ATF has entered the PTU, the transaxle seal and PTU must be replaced. For additional information, refer to AUTOMATIC TRANSAXLE/TRANSMISSION - AISIN AW21 and POWER TRANSFER UNIT (PTU) .

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