Investigations

FUEL TANK LEAKAGE

NHTSA Engineering Analysis EA07006 - closed, opened 2007-04-18 and involving the CHEVROLET CHEVROLET.

EA07006 Engineering Analysis Closed

Vehicle: CHEVROLET CHEVROLET View model page

NHTSA investigation EA07006 is a Engineering Analysis opened on 2007-04-18 and currently closed. The subject of record is CHEVROLET CHEVROLET, which places this file inside the Office of Defects Investigation queue for CHEVROLET. Latest activity on this investigation was logged on 2007-09-13 - NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.

An Engineering Analysis like EA07006 is the deeper technical phase that follows a PE. NHTSA requests design, warranty, and field-failure data from the manufacturer, conducts its own testing when needed, and determines whether the evidence supports a safety defect finding that would compel a recall.

Investigators summarized the matter as follows: "GM IS RECALLING (NHTSA RECALL NO. 07V-349) CERTAIN MODEL YEAR (MY) 2002-2004 BUICK RENDEZVOUS, CHEVROLET VENTURE (REGULAR WHEELBASE) AND 2001-2004 PONTIAC AZTEK AND MONTANA (REGULAR WHEELBASE) VEHICLES TO REPLACE FUEL TA..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time. Related CHEVROLET files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.

Status
Closed
Type
Engineering Analysis
Opened
2007-04-18
Latest Activity
2007-09-13

Investigation Summary

GM IS RECALLING (NHTSA RECALL NO. 07V-349) CERTAIN MODEL YEAR (MY) 2002-2004 BUICK RENDEZVOUS, CHEVROLET VENTURE (REGULAR WHEELBASE) AND 2001-2004 PONTIAC AZTEK AND MONTANA (REGULAR WHEELBASE) VEHICLES TO REPLACE FUEL TANKS AND CORRECT A DEFECT THAT MAY ALLOW FUEL LEAKAGE. THE VEHICLE RECALL POPULATION IS RENDEZVOUS AND AZTEK VEHICLES BUILT IN MAY 2003, VENTURE AND MONTANA VEHICLE BUILT IN JUNE THROUGH AUGUST 2002 AND CERTAIN SAME MODEL VEHICLES REGISTERED IN NEVADA, ARIZONA, VIRGIN ISLANDS, PUERTO RICO AND HAWAII THAT WERE BUILT THROUGH NOV/DEC 2003 (DEPENDING ON MODEL). THE TOTAL NUMBER OF VEHICLES RECALLED IS 20,594 (INCLUDES 15,196 SUBJECT AZTEK AND RENDEZVOUS VEHICLES). IN ADDITION TO THE RECALL, GM WILL EXTEND THE WARRANTY ON MY 2002-2004 RENDEZVOUS AND REGULAR WHEEL BASE VENTURE VANS AND MY 2001-2004 AZTEK AND REGULAR WHEELBASE MONTANA VANS NOT INCLUDED IN THE RECALL TO PROVIDE WARRANTY COVERAGE FOR A PERIOD OF 10 YEARS OR 150,000 MILES, WHICHEVER OCCURS FIRST. GM WILL BEGIN NOTIFYING OWNERS IN DECEMBER 2007. GM REPORTS THAT THE FUEL INLET PIPE CONTAINING THE INLET CHECK VALVE (ICV) MAY FRACTURE AND ALLOW FUEL VAPORS OR FUEL TO LEAK OUT. GM DATA REVEALED THAT ELEVATED AMBIENT TEMPERATURES, HIGHER CARBON CONTENT IN THE ICV AND VARIATION IN THE MANUFACTURING PROCESS WERE THE CONTRIBUTING FACTORS FOR POTENTIAL CRACKS IN THE ICV. BEGINNING DECEMBER 2003, GM BUILT VEHICLES WITH A REDESIGNED FUEL TANK/ICV. SUBJECT VEHICLES NOT INCLUDED IN THE RECALL OR EXTENDED WARRANTY DID NOT SHOW A FAILURE TREND SIMILAR TO THE ABOVE VEHICLES. . FOR ADDITIONAL DETAILS, SEE RECALL 07V-349. THIS INVESTIGATION IS CLOSED.

About This Investigation Type

An Engineering Analysis (EA) is the in-depth phase following a Preliminary Evaluation. NHTSA engineers conduct testing, collect data from manufacturers, and perform detailed technical analysis to determine whether a safety defect exists. An EA may lead to a voluntary recall by the manufacturer or, in rare cases, a mandatory recall order.

Other CHEVROLET Investigations

Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. about how PlainCars sources NHTSA data.