NHTSA safety investigation
NHTSA Investigation PE88079
Preliminary Evaluation · PETER PIRSCH & SONS CO. · SERVICE BRAKES, HYDRAULIC
An investigation is not a finding that a defect exists.
NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
What NHTSA is examining
The agency's own description of the inquiry, quoted as published
VARIOUS BRAKE PROBLEMS
SUMMARY: RECENT ROCKWELL DEFECT REPORT IDENTIFIED THE FOLLOWING ADDITIONAL CONCERNS:A: INSUFFICIENT AIR PRESSURE DUE TO INADEQUATE AIR COMPRESSOR CAPACITY;B: AIR HORN PLUMBED INTO AIR SYSTEM WITHOUT PRESSURE PROTECTION VALVE;C: BRAKE IMBALANCE CAUSED BY BRAKE PROPORTIONING VALVES WHICH REDUCE THE FRONT BRAKE PRESSURES. THE PROBLEMS IDENTIFIED ABOVE MAY RESULT IN HEAT CHECKING AND CRACKING OF THE REAR BRAKE DRUMS
An investigation is a separate record from a recall and from a manufacturer communication. A manufacturer campaign to repair a safety defect or a failure to meet a federal safety standard.
Investigation details
Identifiers, dates and outcome as recorded by NHTSA
- Action number
- PE88079
- Investigation type
- Preliminary Evaluation (PE)
- Status
- Closed
- Manufacturer
- PETER PIRSCH & SONS CO.
- Component
- SERVICE BRAKES, HYDRAULIC
- Opened
- Jun 30, 1988
- Closed
- Sep 9, 1988
- Associated recall campaign
- None recorded
Vehicles named in this investigation
9 model years across 1 model
Being named here means NHTSA included the vehicle in the scope of its inquiry. It is not a statement that these vehicles have a defect.