Drive Belt Auto-Tensioner Inspection
1. Drive Belt Auto-Tensioner - Position Check
1.
Turn the vehicle to the ON mode, and make sure to turn the A/C switch OFF, then turn the vehicle to the OFF (LOCK) mode.
2.
Check the position of the drive belt auto-tensioner indicator pointer (A).
3.
Start the engine, then check the position again with the engine idling. If the position of the indicator moves or fluctuates a lot, do the auto-tensioner air bleeding, and recheck. If the position is still fluctuates, replace the drive belt auto-tensioner.
4.
Check for abnormal noise from the tensioner pulley. If you hear any abnormal noise, replace the drive belt auto-tensioner.

3. Drive Belt Auto-Tensioner - Inspect
1.
Set a wrench on the drive belt auto-tensioner, and slowly turn the wrench in the direction of the arrow.
NOTE:
This is a hydraulic type auto-tensioner, so you must turn the wrench slowly for at least 3 seconds.
Check the belt for cracks or damage.
Check for oil leakage from the damper rubber bellows.
If the tensioner does not move smoothly, or you hear abnormal noise, replace the drive belt auto-tensioner.

4. All Removed Parts - Install
1.
Install the parts in the reverse order of removal.