Investigations
BRAKING PERFORMANCE LOSS
NHTSA Preliminary Evaluation PE91094 - closed, opened 1991-07-05.
NHTSA investigation PE91094 is a Preliminary Evaluation opened on 1991-07-05 and currently closed. The subject is tracked inside the Office of Defects Investigation queue. Latest activity on this investigation was logged on 1991-11-26 - NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
A Preliminary Evaluation like PE91094 is the entry point of the federal defect-investigation process. NHTSA engineers scan complaint databases, field reports, and manufacturer data to decide whether an Engineering Analysis is warranted, whether a voluntary recall is already sufficient, or whether the pattern does not rise to a defect finding.
Investigators summarized the matter as follows: "ABS SYSTEM LEAKS ARE ALLEGED BY CONSUMERS WHICH RESULT IN COMPLETE BRAKEFAILURE. SEVERRE LEAKING OCCURS WHILE THE VEHICLE SITS FOR SEVERAL HOURSRESULTING IN COMPLETE LOSS OF FLUID. LEAKS ARE APPEARING IN BOTH THE HIGHAND..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time.
Investigation Summary
ABS SYSTEM LEAKS ARE ALLEGED BY CONSUMERS WHICH RESULT IN COMPLETE BRAKEFAILURE. SEVERRE LEAKING OCCURS WHILE THE VEHICLE SITS FOR SEVERAL HOURSRESULTING IN COMPLETE LOSS OF FLUID. LEAKS ARE APPEARING IN BOTH THE HIGHAND LOW PRESSURE LINES POSSIBLY DUE TO A FAULTY SEAL OR COUPLING. ONECOMPLAINT ALLEGES FLUID BEING FORCED OUT OF BRAKE RESERVOIR WHEN ENGINE ISSTARTED, POSSIBLE POINTING TO A FAULTY CHECK VALVE IN THE ACCUMULATOR.
About This Investigation Type
A Preliminary Evaluation (PE) is the first phase of NHTSA's investigation process. It is opened when the agency identifies a potential safety defect pattern, usually triggered by consumer complaints, manufacturer reports, or field monitoring. During a PE, NHTSA gathers information to determine whether a formal engineering analysis is warranted.
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. about how PlainCars sources NHTSA data.
Read our methodology - how this data is sourced, computed, and verified.