NHTSA Office of Defects Investigation
Preliminary Evaluation PE02-085: WHEEL STUD FRACTURE
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE02-085 on November 18, 2002 and closed it on April 10, 2003. NHTSA's investigations file lists the 1998–2000 Ford Windstar for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE02-085 (also written PE02085)
- Investigation type
- Preliminary Evaluation The first stage of most defect investigations: NHTSA's Office of Defects Investigation gathers basic information about a possible safety defect, including from the manufacturer.
- Status
- Closed April 10, 2003
- Opened
- Closed
- Vehicle or equipment manufacturer
- Ford Motor Company
- Components
- Wheels; Wheels — Lugs/Nuts/Bolts/Studs
- Vehicles and equipment
- 1998–2000 Ford Windstar
A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Preliminary Evaluation PE02-085.
ANALYSIS OF ODI AND FORD DATA HAS IDENTIFIED 1619 INCIDENTS OF WHEEL STUD FRACTURE IN MY 1998 THROUGH 2000 FORD WINDSTAR VEHICLES, INCLUDING 69 WHEEL SEPARATIONS AND 11 CRASHES.FORD HAS NOT BEEN ABLE TO IDENTIFY ANY DESIGN OR MANUFACTURING DEFECTS IN ITS ANALYZIS OF THE PROBLEM.FORD MAINTAINS THAT THE FAILURES ARE CAUSED BY EITHER:(1) INADVERTENT OVERTORQUING OF LUG NUTS DURING REMOVAL OR INSTALLATION; OR (2) FATIGUE DUE TO INSUFFICIENT CLAMP LOAD BETWEEN THE WHEEL AND THE BRAKE ROTOR OR DRUM AND HUB ASSEMBLY.ACCORDING TO FORD, CORROSION, DIRT, OR DAMAGE PRESENT ON THE ROAD WHEEL AT THE NUT INTEFACE COULD CONTRIBUTE TO THE LATTER CONDITION. ANALYSIS OF ODI COMPLAINT DATA INDICATES THAT THE SUBJECT VEHICLES EXPERIENCE WHEEL STUD FAILURES AT SIGNIFICANTLY HIGHER RATES THAN PEER MINIVANS.THIS INVESTIGATION HAS BEEN UPGRADED TO FURTHER ASSESS THE FREQUENCY, SCOPE, AND TREND OF THE ALLEGED DEFECT CONDITION IN MY 1997 THROUGH 2000 WINDSTAR MINIVANS.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE02-085. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
Ford
All Ford recallsWhat an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Ford VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for PE02-085
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.