Crunch (Dry Rubber Sound) Noise In The Front Suspension Over Bumps - keywords arm bind bump clunk control end no suspension
| Subject: | Crunch (Dry rubber sound) Noise In The Front Suspension Over Bumps |
| Models: | 2004-2008 Chevrolet Aveo |
| 2004-2006 Chevrolet Epica |
| 2004-2008 Chevrolet Optra (Canada Only) |
| 2005-2008 Pontiac Wave (Canada Only) |
This PI was superseded to update model years. Please discard PIC3529C.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Crunch (Dry rubber sound) noise from the front suspension over bumps when driving. This noise may be caused from a binding condition in the front lower control arm bushings.
Recommendation/Instructions:
Loosen both the front (horizontal) and rear (vertical) front control arm attachment bolts on one side. Make sure you have the front control arms supporting the vehicle weight and then re-torque the control arm bolts to factory spec's 110 N·m (81 lb ft).
Note: Perform the same operation on the opposite side.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
