For 1990-2009 cars only
Pop or Knock Noise from Front of Vehicle During Braking (Retighten Lower Control Arm Nuts)
| Subject: | Pop or Knock Noise from Front End of Vehicle During Braking (Retighten Lower Control Arm Nuts) |
| Models: | 2004 Chevrolet Astro Van |
| 2004 GMC Safari Van |
| with Rear Wheel Drive (RWD) |
| Built Prior to the Following VIN Breakpoints: |
Model | VIN Breakpoint |
|---|---|
Chevrolet | 4B119000 |
GMC | 4B505700 |
Condition
Some customers may comment on a pop or knock noise during braking. The noise may be heard during braking in forward and reverse. The noise may only occur once per direction change of the vehicle.
Correction
Retighten the lower control arm nuts with the vehicle weight on the wheels.
Tighten
Tighten the lower control arm nuts to 105N·m(77 lb ft)
with the vehicle weight on the wheels.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
*E9410 | Torque Lower Control Arm Nuts | 0.2 hr |
*This labor operation number is for bulletin use only. | ||
