Suspension - Lower Control Arm Bushing Inspection

Bulletin No: 02-002/09

Last Issued: 03/26/2009

Subject:
LOWER CONTROL ARM BUSHING INSPECTION PROCEDURE

APPLICABLE MODEL(S)/VINS
2001-2006 and 2008-2009 Tribute
2008-2009 Tribute Hybrid

DESCRIPTION

Many states and Canadian provinces require annual safety inspections which include the evaluation of suspension components. The information in this procedure is intended to assist the technician performing the inspection with specific criteria for lower control arm (LCA) bushings, and will prevent the unnecessary replacement of good components.

INSPECTION PROCEDURE





The LCA bushing (A) is located at the rear of the front suspension lower control arm. The control arm is mounted in the front subframe with bolts (B & C). The bushing is part of the LCA and cannot be serviced separately from the arm.





This is a new bushing prior to assembly into the control arm. Bolt (B) passes through the inner sleeve and the outer sleeve is pressed into the control arm. The rubber bushing is bonded to both the inner and outer sleeves.





This is a generic bushing showing minor surface cracks that do not adversely affect the performance of the bushing. Bushings exhibiting surface cracks with a depth less than 3/8" (10 mm) are acceptable, and will continue to function normally. These bushings do not require replacement.





This is a partial separation between the rubber and the outer sleeve. The bushing may show signs of movement on the rubber surface, making the surface shiny. Bushings with a separation or crack depth less than or equal to 3/8" (10 mm) are acceptable, and meet all functional requirements. These bushings do not require replacement.

Bushings with a separation or crack greater than 3/8" (10 mm) in depth should be replaced. The customer may hear a bang or clunk in the front suspension if there is enough separation for the arm to contact the subframe. This does not affect the retention of the control arm to the vehicle as the bushing is sandwiched in the subframe and held in place with the bolt. The vehicle can be safely operated in this condition until the bushing is replaced.





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