Engine - Idler Pulley/Belt Noise

No: 86/02/03/NAS
Ref:
*Issue: 3
Date: 05/23/03*

Serpentine Belt Idler Pulley Noise

* indicates updated information

AFFECTED VEHICLE RANGE:

Range Rover (LP) XA410504 and up

Discovery Series II XA200419 - 1A299999
1A700000 - 3A781991

SITUATION:

*NOTE:
Original versions of this bulletin used the incorrect term "tensioner pulley" to describe the part to be replaced. Both the terminology and the SRO are corrected in Edition 3.*

NOISY AUXILIARY DRIVE BELT IDLER PULLEY

The customer may complain of a chirp or excessive belt noise. The plastic idler pulley may be deformed causing uneven loads on the serpentine belt.

RESOLUTION:

REPLACE DEFORMED PULLEY

Where a complaint of the above is confirmed, replace the auxiliary drive belt idler pulley with a new specification pulley.

PARTS INFORMATION:

PQR5OOO6O Idler Pulley

WARRANTY CLAIMS:

*NOTE:
The time associated with SRO 86.10.23 is the same as the originally published code.

86.10.23 Time 0.40 hrs.

Replace alternator drive belt idler pulley*

FAULT CODE: K

Normal warranty policy and procedures apply.
Material allowance is included in labor operation.

REPAIR PROCEDURE





*INSTALL NEW PULLEY

1. Refer to RAVE section 86.10.03 for affected vehicle and remove the auxiliary drive belt.

2. Remove bolt securing the RH idler pulley below the tensioner assembly.

3. Remove and discard the idler pulley.

4. Clean area around pulley mount and ensure mounting threads are clear of debris.

5. Install the new idler pulley and tighten the bolt to 50 Nm (37 lbf.ft).

6. Install the auxiliary drive belt following RAVE procedures.*