Inspection Before Removal

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

With the engine stopped and the belt installed, record the belt tension generated by the existing belt tensioner.

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Use a suitable tool to measure the tension in the drive belt.

Belt tension minimum	: 178 mm (40 in)
Belt tension maximum	: 365 mm (82 in)

NOTE: If the measurement is out of the specified range, replace only the belt and perform the tension test again. If a new belt has been installed and the measurement is still outside of the specified range, replace the belt tensioner.

With the engine stopped, check the cooling fan belt tensioner arm, pulley, and stops for cracks (A). If any cracks are found, the tensioner must be replaced.

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With the belt installed, verify that neither cooling fan belt tensioner arm stop is in contact with the spring case stop (A). If either of the stops is touching:

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- Verify the correct belt part number is installed.
- If the correct belt is installed, replace the belt. Refer to Removal and Installation - Drive Belt .
After replacing the belt, if the cooling fan belt tensioner arm stops are still in contact with the spring case stop (B), the cooling fan belt tensioner must be replaced.
Check the location of the drive belt on the cooling fan belt tensioner pulley. The belt should be centered (A) on, or close to the middle of, the pulley. Misaligned belts (B), either too far forward or backward, can cause belt wear, belt roll-offs, or increase uneven cooling fan belt tensioner bushing wear.

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NOTE: Belt misalignment is not always a result of a malfunctioning or faulty cooling fan belt tensioner. Make sure the adjacent pulleys and mounting brackets are aligned and mounted correctly. Refer to Inspection .
Remove the drive belt. Refer to Removal and Installation - Drive Belt .

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With the belt removed, verify that the cooling fan belt tensioner arm stop is in contact (A) with the spring case stop. If they are not touching (B), the cooling fan belt tensioner must be replaced.