PIC3529E

File in Section:
Service Bulletin
Bulletin No.:
Date:
PIC3529E
June, 2013
PRELIMINARY INFORMATION
Subject:
Dry Rubber Crunch Noise In The Front Suspension Over Bumps
Models:
2004-2011 Chevrolet Aveo
2004-2011 Chevrolet Epica
2004-2011 Chevrolet Optra (Canada Only)
2005-2010 Pontiac Wave (Canada Only)
This PI was superseded to update model years and subject line. Please discard PIC3529D.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
A crunch (dry rubber sound / noise) may be heard 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).
Notice: 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.