EA08026 · Front Suspension Coil Spring Fracture
Opened Dec 22, 2008 · Closed Jun 4, 2010
Status: closed (inferred from source dates) · Suspension:front:springs:coil Springs
To date, ODI is aware of 142 non-duplicative complaints related to the alleged defect.In addition, ODI is aware of 2,626 subject vehicles with one or more warranty claims related to the alleged defect.In total, ODI is aware of 2,714 unique subject vehicles that have experienced one or more front suspension coil spring fractures.ODI is not aware of any crashes or injuries related to the alleged defect.The engineering design and testing data supplied by GM, along with the frequency of consumer complaints and warranty claims related to the alleged defect, tends to support the position that, in general, the coil springs that fractured on many subject vehicles did not achieve the expected service life.However, in regard to the subject vehicles, a front suspension coil spring fracture itself has little safety consequence, as evidenced by the minimal impact on vehicle ride and handling and by the number of drivers who were unaware of the failure condition for some time until alerted by service personnel.The ratio of tire punctures to coil spring fractures appears low and there are no reports of crashes, deaths or injuries related to the alleged defect. A safety-related defect has not been identified at this time and further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will continue to monitor this issue and will take further action if warranted by the circumstances.See the EA08-026 Engineering Analysis Closing Report for more details.
PE08051 · Front Suspension Coil Spring Fracture
Opened Aug 28, 2008 · Closed Dec 23, 2008
Status: closed (inferred from source dates) · Suspension:front:springs:coil Springs
ON AUGUST 28, 2008, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE08-051) TO INVESTIGATE ALLEGED FRONT SUSPENSION COIL SPRING FRACTURES IN CERTAIN MODEL YEAR (MY) 2003-2004 SAAB 9-3 VEHICLES SOLD OR REGISTERED IN SALT BELT STATES.(NOTE: FOR PURPOSES OF THIS INVESTIGATION, THE SALT BELT INCLUDES CONNECTICUT, DELAWARE, THE DISTRICT OF COLUMBIA, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA AND WISCONSIN).SUBSEQUENT ANALYSIS OF DATA PROVIDED BY GENERAL MOTORS CORP. (GM) HAS LED THE AGENCY TO EXPAND THE SCOPE OF THIS INVESTIGATION TO INCLUDE ALL MY 2003-2006 SAAB 9-3 VEHICLES SOLD OR REGISTERED IN SALT BELT STATES. TO DATE, ODI IS AWARE OF 53 NON-DUPLICATIVE COMPLAINTS AND/OR FIELD REPORTS THAT ALLEGE COIL SPRING FRACTURE IN THE SUBJECT VEHICLES, INCLUDING 23 ALLEGING THE FRACTURED SPRING DAMAGED A TIRE, WITH 16 OF THOSE INVOLVING A TIRE PUNCTURE.ANALYSIS OF WARRANTY DATA PROVIDED BY GM IDENTIFIED 1,218 CLAIMS PAID TO REPAIR SUBJECT VEHICLES THAT EXPERIENCED THE ALLEGED DEFECT, OF WHICH 138 VEHICLES ALSO SUFFERED DAMAGE TO THE ADJACENT TIRE AND OF THOSE, 79 VEHICLES EXPERIENCED A TIRE PUNCTURE.ODI IS NOT AWARE OF ANY CRASHES OR INJURIES RELATED TO THE ALLEGED DEFECT. GM MADE SEVERAL DESIGN CHANGES TO THE COIL SPRINGS AND/OR MCPHERSON STRUT ASSEMBLIES USED IN THE SUBJECT VEHICLES IN AN APPARENT EFFORT TO ADDRESS THE ALLEGED DEFECT CONDITION.HOWEVER, GM MAINTAINS THAT THE SUBJECT VEHICLES REMAIN WELL CONTROLLED IN THE EVENT OF TIRE PUNCTURE, THAT THE RATE OF TIRE PUNCTURE INCIDENTS RELATED TO COIL SPRING FRACTURES IS LOW, AND THAT THE ALLEGED DEFECT DOES NOT POSE AN UNREASONABLE RISK TO MOTOR VEHICLE SAFETY.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-026) TO FURTHER STUDY THE SAFETY CONSEQUENCES OF THE ALLEGED DEFECT.
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