FRONT SUSPENSION COIL SPRING FRACTURE

Suspension:Front
Suspension:Front:Springs:Coil Springs

Summary

The subject vehicles are equipped with a coil spring-over-strut front suspension with the spring itself resting in compression between two polymer isolators.PE03-031 was opened to investigate reports of fracture of this spring.the fractures occur in the first active coil above the lower isolator and apparently originate in corrosion pits found beneath regions of damaged epoxy coating.consumer complaints and warranty data show that the failures occur predominantly in the "corrosion states" and tend to appear outside of the standard 36,000 mile warranty term.these data also suggest that these failures will continue to happen.slightly more than one third of the consumer complaints have involved the broken spring coil contacting the adjacent tire.ODI is upgrading PE03-031 to an engineering analysis to gather further information concerning the scope and consequences of these failures.

Documents (7)

• GM 6/24/2004 RESPONSE TO ODI
• MEMO 6/24/2004 TO TIS, ONE CD GM 6/24/2004 ATTACHMENT 1
• CLOSE RESUME APPROVED
• IR TO MFR
• OPEN
• LETTER TO MFR FROM OCC
• LETTER TO OCC FROM MFR

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