Investigation PE06004: 2004 Jeep Liberty

Status

CLOSED

Opened

Jan 6, 2006

Closed

May 31, 2006

Model years

2004

Subject

Front suspension ball joint separation

Component: Suspension › Front › Control arm › Lower ball joint

Summary

On january 6, 2006, the office of defects investigation (odi) opened a preliminary evaluation to investigate alleged front suspension lower ball joint separation while driving in certain model year (my) 2004 jeep liberty vehicles.odi sent a letter to the manufacturer on february 7, 2006 requesting information about these and other jeep liberty vehicles.odi is aware of 93 non-duplicative complaints that allege involuntary front suspension lower ball joint separation in the subject vehicles.odi is also aware of two alleged injury incidents related to the alleged defect (one crash incident and one non-crash incident), both resulting in minor injury.the manufacturer conducted a prior safety recall (03v-460) to address the subject issue in certain my 2002-03 jeep liberty vehicles.according to daimlerchrysler?s defect information report to the agency (in accordance with 49 cfr part 573) dated november 4, 2003, ?the constant tension lower control arm ball joints may experience a loss of lubrication which can lead to corrosion, accelerated wear and possibly separation from the steering knuckle.a constant tension ball joint which has separated from the knuckle may result in loss of vehicle directional control with minimal advanced warning.?the manufacturer has made numerous changes in the design, material composition, manufacture, quality control, supply, and installation of the subject ball joints since the prior safety recall was initiated in an effort to improve performance with respect to sealing, lubrication, and joint retention capability.the manufacturer's investigation into alleged front suspension lower ball joint separation is ongoing.accordingly, this investigation has been upgraded to an engineering analysis (ea06-008) to further study the frequency and scope of the alleged defect and the adequacy of the remedy provided by the prior safety recall.

An NHTSA investigation looks into whether a safety defect exists. Opening one is not a finding. Outcomes can include a recall, closure without action, or further inquiry.

Model years covered

• 2004 Jeep Liberty1,101 complaints