NHTSA investigationEA91040
Investigation EA91040: 1991 Ford Explorer
- Status
- CLOSED
- Opened
- Oct 3, 1991
- Closed
- Aug 17, 1992
- Model years
- 1991
Subject
Vacuum boostr valve fails
Component: Service brakes, hydraulic
Summary
There is no summary currently available
An NHTSA investigation looks into whether a safety defect exists. Opening one is not a finding. Outcomes can include a recall, closure without action, or further inquiry.
Model years covered
- 1991 Ford Explorer609 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.