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NHTSA Preliminary Evaluation PE04080

Preliminary Evaluation · STEERING KNUCKLE FRACTURE · Opened 2004-12-02 · Closed 2005-10-28

Investigation

Action number
PE04080
Type
Preliminary Evaluation
Open date
2004-12-02
Close date
2005-10-28
Manufacturer
General Motors, LLC
Affected makes
HUMMER
Affected components
STEERING:LINKAGES:TIE ROD ASSEMBLY; SUSPENSION:FRONT; SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT
Affected model years
2003, 2004
Affected (make, year) variants
6

Summary

DURING THE PE, ODI INVESTIGATED THE HUMMER H2 FOR FRACTURES WHICH WERE OCCURRING AT THE FRONT STEERING KNUCKLE LOWER BOSS.WHEN THE KNUCKLE LOWER BOSS FRACTURES, THE LOWER BALL JOINT STUD IS RELEASED AND THE ENTIRE KNUCKLE AND WHEEL/TIRE ASSEMBLY SEPARATES FROM THE VEHICLE.ODI IS UPGRADING THIS INVESTIGATION TO GAIN A FULL TECHNICAL UNDERSTANDING OF THE FACTORS WHICH CONTRIBUTED TO THESE FAILURES.

Source

Authoritative
NHTSA ODI investigation page
Machine
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