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1998 Pontiac Grand Prix

5 Defect Investigations from the NHTSA

NHTSA Defect Investigations for the 1998 Pontiac Grand Prix

The Office of Defects Investigations (ODI) is an office within the NHTSA which investigates serious safety problems in the design, construction or performance of vehicles. The NHTSA is authorized to order manufacturers to recall and repair vehicles, if the ODI finds a safety issue. NHTSA investigations for the 1998 Pontiac Grand Prix, both ongoing and closed, are listed below:


    NHTSA Engineering Analysis #EA01014

    Component(s): Air Bags:Frontal:Driver Side Inflator Module



    NHTSA Preliminary Evaluation #PE02050

    • Status:
    • Date Opened: June 13, 2002
    • Date Closed: October 22, 2002
    • Recall: No recall issued

    Component(s): Engine And Engine Cooling



    NHTSA Engineering Analysis #EA02030

    Component(s): Fuel System, Gasoline
    Fuel System, Gasoline:Delivery
    Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And Fittings

    Summary: EA02-030 is closed with gmea02-030 is closed with GM's actions in 03V-473 and 04V-090 recalling approximately 529,000 MY 1998-99 C- and H-body vehicles equipped with defective fuel pressure regulators.these vehicles were equipped with plastic intake manifolds that are unable to contain pressures that occur in some backfire events and defective fuel pressure regulators with leaking diaphragms that can provide a source of fuel to produce a combustible air-fuel mixture in the manifold.the closing of this investigation does not constitute a finding by ODI that no safety defect exists in the vehicles that are not included in GM's recalls.ODI will continue to monitor the incidence of manifold ruptures and related fires in other MY 1995-2002 GM passenger cars equipped with the subject intake manifold.for additional information, see the attached closing report.


    NHTSA Engineering Analysis #EA99024

    • Status:
    • Date Opened: August 20, 1999
    • Date Closed: January 13, 2000
    • Recall: No recall issued

    Component(s): Visibility

    Summary: By letter dated December 12, 1999, GM notified NHTSA of its plans to conduct a safety related defect campaign to remedy 155,149 of the subject vehicles.the vehicle population for the campaign includes the 1997 Buick regal/century and Pontiac gran prix models built during the period from the start of production through May 1, 1997.GM determined that the wipers installed prior to this date could stop working, usually during heavy load conditions, due to separation between the drive pin and the crescent in the wiper crank arm assembly.effective May 1, 1997, GM corrected this problem in production by modifying the drive pin and strengthening the crescent.these same improved parts will be installed in the vehicles to be recalled.the scope of the campaign will include all vehicles produced prior to the May 1, 1997 correction (the Oldsmobile intrique production did not start until after May 1, 1997, and is therefore not included).vehicles with the scope of this investigation and produced after May 1, 1997, contain the more robust crescent and improved pin design and are not included in the recall campaign.ODI will continue to monitor complaint reports on the vehicles produced after May 1, 1997 and reserves the right to take further action if warranted by the circumstances.based on GM's recall action (ODI 99V-348) this investigation is closed.


    NHTSA Preliminary Evaluation #PE99028

    • Status:
    • Date Opened: April 16, 1999
    • Date Closed: August 20, 1999
    • Recall: No recall issued

    Component(s): Visibility

    Summary: Incidents of wiper failure (owner reports and warranty) are very high, and many of the reports indicate that the failures are still occurring in 1999.

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