NHTSA safety investigation
NHTSA Investigation PE88068
Preliminary Evaluation · E-One Incorporated · 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 REPORTS IDENTIFIED THE FOLLOWING ADDITIONAL CONCERNS: A: INSUFFICIENT AIR PRESSURE DUE TO INADEQUATE AIR COMPRESSORCAPACITY; B: AIR HORN PLUMBED INTO AIR SYSTEM WITHOUT PRESSURE PROTECTIONVALVE; C: BRAKE IMBALANCE CAUSED BY BRAKE PROPORTIONING VALVES WHICHREDUCE THE FRONT BRAKE PRESSURE. THE ABOVE PROBLEMS 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
- PE88068
- Investigation type
- Preliminary Evaluation (PE)
- Status
- Closed
- Manufacturer
- E-One Incorporated
- Component
- SERVICE BRAKES, HYDRAULIC
- Opened
- Jun 28, 1988
- Closed
- Nov 7, 1988
- Associated recall campaign
- 88V171000
Vehicles named in this investigation
10 model years across 2 models
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.