NHTSA Office of Defects Investigation
Preliminary Evaluation PE07-057: VIOLENT FRONT END OSCILLATION
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE07-057 on November 15, 2007 and closed it on March 14, 2008. NHTSA's investigations file lists 4 Ford models for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE07-057 (also written PE07057)
- 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 March 14, 2008
- Opened
- Closed
- Vehicle or equipment manufacturer
- Ford Motor Company
- Components
- Suspension; Suspension — Front
- Vehicles and equipment
- 4 Ford models, including the F-250 and F-250 SD
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 PE07-057.
ODI HAS RECEIVED 78 CONSUMER COMPLAINTS OF SEVERE SUSPENSION AND STEERING WHEEL SHIMMY AND OSCILLATIONS COMMENCING AFTER THE SUBJECT VEHICLES TRAVELED OVER AN UNEVEN ROAD SURFACE. THE MAJORITY OF THESE INCIDENTS OCCURRED AT SPEEDS OF 50 MPH OR GREATER.THIRTEEN OF THE COMPLAINTS RECEIVED BY ODI ALLEGE LOSS OF STEERING CONTROL AND THAT THE VEHICLE CHANGED DRIVING LANES UNCONTROLLABLY.FOUR OF THE COMPLAINTS RECEIVED BY ODI ALLEGE THAT THE VEHICLE LEFT THE ROAD SURFACE AS A RESULT OF THE VIOLENT SUSPENSION AND STEERING WHEEL OSCILLATIONS.IN ONE CASE THE CONSUMER ALLEGES THAT AFTER THE VEHICLE LEFT THE ROAD SURFACE, IT CRASHED INTO A WOODED AREA.ADDITIONALFACTORS CONTRIBUTING TO THE OPENING OF THIS EA WERE EARLY WARNING FIELD REPORTS,SUBMITTED BY FORD, DESCRIBING SUSPENSION SHIMMY / OSCILLATIONSAND A FORD TSB (07-10-10) DESCRIBING THE SUSPENSION SHIMMY ISSUE AND HOW TO REPAIR THE PROBLEM.FORD HAS DESCRIBED SHIMMY AS SELF-EXCITED OSCILLATION OF THE STEERING WHEELS WITH ACCOMPANYING WHEEL TRAMP.THIS PE HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA) TO DETERMINE IF THE SHIMMY CONDITION THAT OCCURS ON THE SUBJECT VEHICLES CREATES A CONDITION WHERE THE VEHICLE BECOMES DIFFICULT TO CONTROL OR STARTLES THE DRIVER, THUS PRESENTING A SAFETY RISK.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE07-057. 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.
What 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 PE07-057
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.