NHTSA Office of Defects Investigation

Engineering Analysis EA98-024: FUEL LEAKS FROM THE VAPOR CANISTER

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA98-024 on November 10, 1998 and closed it on April 20, 2000. NHTSA's investigations file lists 3 models from 2 makes for it and links recall 00V-110 to it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA98-024 (also written EA98024)
Investigation type
Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
Status
Closed April 20, 2000
Opened
Closed
Vehicle or equipment manufacturer
General Motors, LLC
Component
Vehicle Speed Control — Linkages
Recall linked by NHTSA
  • 00V-110: GM/FUEL ODOR/LEAKAGE, reported
Vehicles and equipment
3 models from 2 makes, including the Chevrolet Chevrolet Truck and GMC G10

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA98-024.

In January 1998, GM issued the technical service bulletin describing conditions which may result in fuel leakage from the emission vapor canister.

According to the bulletin, when the subject vehicles are parked on an incline, with a full tank of gasoline, fuel can flow into the vapor canister.

The remedy is to replace of the vapor canister, both rollover valve assembles, and the associated piping.

In April 1998, ODI opened Service Query 98-005 to understand GM's rationale for issuance of a service bulletin on a matter that appeared to result in fuel leakage, an issue that is usually address by conducting a safety recall campaign.

On November 10, 1998 the SQ was elevated to an Engineering Analysis (EA98-024) to investigate an alleged defect in the fuel tank rollover valve system in certain 1996 through 1997 Chevrolet Trucks and OMC Full Size 010-030 panel and passenger vans.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA98-024. 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.

Chevrolet

All Chevrolet recalls

GMC

All GMC recalls

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 EA98-024

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.