Astra L4-1.8L (2009)
Drive Belt: Customer Interest
Engine - Chirp Noise From Drive Belt With A/C ON
TECHNICAL
Bulletin No.: 10-06-01-001
Date: January 11, 2010
Subject: Chirp Noise from Accessory Drive Belt with A/C Compressor On (Replace Generator Pulley)
Models:
2008-2009 Saturn Astra
Equipped with Automatic Transmission (RPO MNF)
Condition
Some customers may comment on a chirp, or other similar noise, from the engine compartment of the vehicle. The noise will typically be heard when
accelerating from a stop, between 800-1800 RPM. This is more noticeable on humid days with the A/C on.
Correction
When diagnosing this noise, remove the accessory drive belt (refer to Drive Belt Removal in SI) and test drive the vehicle for a very short distance. If the
noise has gone away, replace the generator pulley with GM P/N 55560294.
Note
SPX Kent-Moore tool number 8395923 is required for this bulletin.
Generator Pulley Removal Procedure
1. Disconnect the battery.
1. Remove the negative connection from the ground terminal.
2. Loosen the nut.
2. Remove the Air Cleaner Assembly. Refer to Air Cleaner Assembly in SI.
3. Remove the three top bolts on the passenger side top mount (1).
4. Remove the drive belt. Refer to Drive Belt removal in SI.
5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
6. Remove the right front wheel. Refer to Tire and Wheel Removal and Installation in SI.
