NHTSA investigationPE88004
Investigation PE88004: 1980–1987 Motor Coach MC9
- Status
- CLOSED
- Opened
- Oct 16, 1987
- Closed
- Nov 19, 1987
- Model years
- 1980–1987
Subject
Fast idle air cyl failures
Component: Vehicle speed control › Linkages
Summary
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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.
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.