# NHTSA Preliminary Evaluation PE87052
> **REAR BRAKE LOCKUP** · Opened 1987-09-09 · Closed 1988-03-04
## Investigation
- **Action number:** PE87052
- **Type:** Preliminary Evaluation
- **Open date:** 1987-09-09
- **Close date:** 1988-03-04
- **Manufacturer:** Ford Motor Company
- **Affected makes:** FORD
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1986, 1987
- **Affected (make, year) variants:** 2
## Summary

ANALYSIS:THE SIX REPORTS ALLEGE THAT WHILE ENGAGING IN NORMAL DRIVING ONDRY PAVEMENT, BRAKE PEDAL APPLICATION RESULTED IN THE LOSS OF DIRECTIONALSTABILITY AND CONTROL OF THE VEHICLE.FOUR INJURY ACCIDENTS HAVE RESULTED,WITH THREE OCCURRENCES OF VEHICLE ROLL-OVER.THERE HAVE BEEN NO TSB'S ORRECALLS ISSUED WITH RESPECT TO THIS CONDITION.PROPOSED ACTION:OPEN A PRELIMINARY EVALUATION.===

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE87052)
---
*AI Analytics · CC0 1.0*