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Search Results   Report Date : November 21, 2009 at 06:07 PM NHTSA Action Number : RQ06009 N/A NHTSA Action Number : RQ06009 NHTSA Recall Campaign Number : N/A Make / Models :         Model/Build Years:          BUICK / RENDEZVOUS     2001-2004      PONTIAC / AZTEK     2001-2004 Manufacturer : GENERAL MOTORS CORP. Component : FUEL SYSTEM, GASOLINE FUEL SYSTEM, GASOLINE:STORAGE FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP Date Investigation Opened : December 14, 2006 Date Investigation Closed : April 18, 2007 Summary: CERTAIN SUBJECT VEHICLES MAY EXHIBIT LEAKAGE OF ODOR AND/OR FUEL FROM THE LOWER PORTION OF THE FUEL TANK INLET FILLER PIPE (INLET CHECK VALVE). THE INLET CHECK VALVE (ICV) AND THE FUEL TANK ARE JOINED TOGETHER USING A HOT PLATE WELDING PROCESS FOR PLASTIC PARTS. GM REPORTS THAT ITS ANALYSIS OF FIELD RETURNED PARTS SHOW EVIDENCE OF PROCESS VARIATIONS FOR DIFFERENT MANUFACTURING PERIODS. THESE VARIATIONS PRODUCED SOME ICV TO FUEL TANK JOINTS WITH "POOR MELT FLOW LINES." ODI'S ANALYSIS OF GM'S WARRANTY CLAIM DATA FINDS MORE FREQUENT FUEL TANK REPLACEMENTS IN THE HOTTER CLIMATE STATES. THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA07-006) TO FURTHER ASSESS THIS MATTER. Check to Request Research. Submit below.