Contents: Belt Tensioner FEAD ⇩ FEAD belt ⇩
Belt Tensioner FEAD
Static check
The only checks required for the FEAD belt tensioner are for binding or seizing.
- Remove the drive belt in the tensioner area.
- Using the correct tool, move the tensioner from the released position through its full stroke and back to the released position to ensure there is no excessive binding or seizing and that there is tension on the tensioner spring.
- If the tensioner meets these criteria, proceed to the dynamic test. If the tensioner does not meet these criteria, install a new tensioner. For additional information, refer to: Accessory Drive Belt Tensioner (303-05B Accessory Drive - 2.2L Duratorq - Td4, Removal and Installation).
Dynamic check
The FEAD belt tensioner can be checked dynamically by proceeding as follows:
- With the engine running, observe the movement of the drive belt tensioner: The FEAD belt tensioner should move (react) when the A/C compressor clutch (if equipped) is engaged/disengaged and when the engine speed increases rapidly. If the drive belt tensioner moves erratically without the A/C compressor clutch cycling or the engine accelerating, the pulley or shaft may be warped. Excessive belt groove depth unevenness may be the cause of excessive drive belt tensioner movement. Verify the problem condition with a known good belt. For additional information, refer to: Accessory Drive Belt (303-05B Accessory Drive - 2.2L Duratorq - Td4, Removal and Installation).
FEAD belt
- With the engine off, check the drive belt routing. For more information, refer to: Accessory Drive (303-05B Accessory Drive - 2.2L Duratorq - Td4, Description and Operation).
- Inspect the drive belt tensioner wear indicator to ensure the drive belt is within the operating range. Install a new drive belt if necessary. For additional information, refer to: Accessory Drive Belt (303-05B Accessory Drive - 2.2L Duratorq - Td4, Removal and Installation).
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