Jaguar Humming Noise From Accessory Drive Belt Idler Pulley

Jaguar Tech Tip: Humming Noise From Accessory Drive Belt Idler Pulley

A humming noise may be evident from the engine when the engine is idling. This may be caused by dust or water ingress to the accessory drive belt idler pulley bearing. The idler pulley bracket assembly (C2D51367) must be replaced as a complete assembly and must not be dismantled to a lower level.

Models:

2017 F-PACE V6 3.0L Supercharged
2014-2017 F-TYPE V6 3.0L Supercharged/V8 5.0L 
2017 XE V6 3.0L Supercharged 
2017 XE V6 S/C 3.0L Supercharged
2016 XF V6 S/C 3.0L Supercharged
2010-2015 XF V6 3.0L Supercharged/V8 N/A 5.0L V8
2010-2016 XJ V6 N/A/Supercharged 3.0L/V8 5.0L
2010-2015 XK 

Condition: 

A humming noise may be evident from the engine when the engine is idling.

Cause: 

This may be caused by dust or water ingress to the accessory drive belt idler pulley bearing.

Service Procedure:

The idler pulley bracket assembly (C2D51367) must be replaced as a complete assembly and must not be dismantled to a lower level.

1. Remove the T-connector from the air cleaner outlet pipe.
2. Note the position of the accessory drive belt.
3. Remove the accessory drive belt from the idler pulley.
> The fasteners must be retained for re-use.
> Do not discard the original idler pulley assembly.
4. Remove the accessory drive idler pulley and bracket assembly. 
5. Install the new accessory drive idler pulley and bracket assembly. Torque: 25Nm
6. Make sure that the accessory drive belt is correctly located on each pulley.
7. Install the accessory drive belt.
8. Install the T-connector to the air cleaner outlet pipe.

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