Cobalt L4-2.2L (2008)
1. Verify the customer comment. Use Chassis Ear (SA9217NE or J39570) or a similar tool to determine the source of the noise. Refer to Noise
Diagnosis - Front Suspension in SI.
Important
Check the Service Parts Identification label in the rear compartment (trunk) to determine the vehicle's suspension system type, then
obtain the correct insulators (bushings) corresponding to that suspension system type.
2. If the noise is coming from either the front stabilizer shaft insulators (bushings), replace both front stabilizer shaft insulators (bushings). Refer to
the Stabilizer Shaft Insulator Replacement procedure in SI.
3. Verify the repair by repeating Step 1.
Parts Information #7 (Cobalt, G5, HHR)
Warranty Information #7
For vehicles repaired under warranty, use:
Condition #8
Some customers may comment on a whine/hum noise from the steering column while making right hand turns at 5-15 mph (8-24 km/h). A slight
whine/hum noise is considered to be normal for EPS so it will be helpful to compare to another like vehicle. If the vehicle exhibits excessive
feedback/noise when compared to another vehicle, follow the correction procedure below.
Correction #8
Important
DO NOT replace the steering column.
Pull the 60 amp steering fuse (1) in the underhood fuse block. If this eliminates the whine/hum concern, contact the Technical Assistance Center for
further information in order to repair the vehicle. If this does not eliminate the noise, continue to diagnose the vehicle according to the diagnostics in SI.
