NHTSA Office of Defects Investigation
Preliminary Evaluation PE87-041: THROTTLE SYSTEM FAILURE
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE87-041 on August 4, 1987 and closed it on November 30, 1987, the day it opened Engineering Analysis EA88-010, whose summary cites it. NHTSA's investigations file lists 3 models from 3 makes for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE87-041 (also written PE87041)
- Investigation type
- Preliminary Evaluation The first stage of most defect investigations: NHTSA's Office of Defects Investigation gathers basic information about a possible safety defect, including from the manufacturer.
- Status
- Closed November 30, 1987
- Opened
- Closed
- Vehicle or equipment manufacturer
- General Motors, LLC
- Component
- Vehicle Speed Control — Linkages
- Vehicles and equipment
- 3 models from 3 makes, including the Buick Lesabre and Oldsmobile 88
A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Preliminary Evaluation PE87-041.
SUMMARY OF INFORMATION FROM MANUFACTURER:GM REPORTED KNOWLEDGE OF 137OWNER COMPLAINTS, 317 FIELD REPORTS, AND 2 LAWSUITS, IN ADDITION TO THEREPORTS RECEIVED DIRECTLY BY THE NHTSA.THE REPORTS RECEIVED BY GM CITETHE OCCURRENCE OF 263 ACCIDENTS,INCLUDING 77 INJURY ACCIDENTS, 100 INJURIESAND 1 FATALITY.SEVERAL POSSIBLE MODES OF THROTTLE CONTROL SYSTEM FAILURE OR MALFUNCTIONARE UNDER CONSIDERATION IN THIS PE, INCLUDING SELF-ACTUATION, FAILURE TODEACTIVATE UPON DRIVER COMMAND, AND THROTTLE SYSTEM STICKING OR BINDING.HAVING EVALUATED THE 456REPORTS RECEIVED DIRECTLY AND THE 36 CONSUMERCOMPLAINTS SUBMITTED BY NHTSA, GM INDICATED THAT NO MEANINGFUL FREQUENCYOR MODE OF MALFUNCTION COULD BE IDENTIFIED TO SUGGEST THE EXISTENCE OF ADEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY.SEVERAL DESIGN/MANUFACTURING CHANGES WERE IDENTIFIED AS RELEVANT TO THESUBJECT OF THIS PE; HOWEVER, NO SERVICE BULLETINS OR RECALL NOTIFICATIONSHAVE BEEN ISSUED ON THROTTLE CONTROL SYSTEM PROBLEMS.ANALYSIS:DURING GM'S COMPILATION AND EVALUATION OF INFORMATION REQUIREDTO RESPOND TO THE NHTSA'S REQUEST, INDICATIONS WERE GIVEN TO ODI THAT THENUMBER OF CONSUMER AND OTHER REPORTS CLEARLY SUGGESTED THE EXISTENCE OF ASAFETY PROBLEM AND THAT CORRECTIVE ACTION BY THE MANUFACTURER WERE INORDER.GM'S FORMAL LETTER RESPONSE, HOWEVER, RETREATED FROM THIS POSITION.NOTWITHSTANDING THE INCOMPLETE ANALYSIS OF INFORMATION SUBMITTED TO THENHTSA, THE NUMBERS OF OWNER AND FIELD REPORTS, TOGETHER WITH CLEAR DATATO SHOW THAT THROTTLE SYSTEM FAILURES HAVE RESULTED IN SIGNIFICANT NUMBERSOF ACCIDENTS AND INJURIES, INDICATE THAT A MORE RIGOROUS EVALUATION OF THISMATTER IS IN ORDER.===
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE87-041. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
What an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for PE87-041
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.