PE09028 · PE
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS Investigation
THE OFFICE OF DEFECTS INVESTIGATION OPENED THIS INVESTIGATION BASED ON NINE VEHICLE OWNER QUESTIONNAIRE (VOQ) REPORTS ALLEGING GASOLINE LEAKAGE FROM THE IN-TANK FUEL PUMP ASSEMBLY.SOME COMPLAINANTS REPORTED LEAKS FROM THE FUEL PUMP NIPPLE (I.E., THE FITTING FOR THE FUEL SUPPLY AND/OR RETURN HOSES).OTHERS REPORTED LEAKAGE FROM FUEL PUMP CRACKS, FUEL PUMP LINES, AND FROM THE TOP OF THE FUEL TANK.ODI WAS UNABLE TO VERIFY THAT ALL OF THE LEAKS ORIGINATED FROM THE FUEL PUMP HOSE FITTINGS AND OR NIPPLES.ODI'S ANALYSIS OF THE AVAILABLE COMPLAINT DATA ATTRIBUTED TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES SHOW A LOW OVERALL RATE AND A DECLINING TREND, AS 75% OF THE REPORTS WERE RECEIVED PRIOR TO CALENDAR YEAR 2009.COMPLAINT DATA FOR MODEL YEAR 2001 AND 2003 VEHICLES ALSO DEMONSTRATES A LOW RATE AND SIMILAR DECLINING TREND.A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
PE08061 · PE
ENGINE AND ENGINE COOLING Investigation
ON MAY 22, 2008, THEOFFICE OF DEFECTS INVESTIGATION (ODI) WAS PETITIONED BY THE NORTH CAROLINA CONSUMERS COUNCIL (NCCC) TO BROADEN THE SCOPE OF SAFETY RECALL 07V-519, WHICH WAS CONDUCTED BY GENERAL MOTORS CORPORATION (GM) FOR MODEL YEAR (MY) 2001 SATURN L-SERIES VEHICLES EQUIPPED WITH THE L61 2.2L ENGINE AND BUILT DURING A 4-MONTH PERIOD FROM NOVEMBER 2000 THROUGH FEBRUARY 2001 (DP08-002). ON OCTOBER 16, 2008, ODI GRANTED DP08-002 AND OPENED PE08-061 TO INVESTIGATE TIMING CHAIN FAILURES RESULTING IN ENGINE STALL WHILE DRIVING (SWD) IN THE SATURN L-SERIES VEHICLES EQUIPPED WITH L61 ENGINES AND THAT USED THE SAME DESIGN TIMING CHAIN AND TIMING CHAIN LUBRICATION SYSTEM AS THE RECALLED VEHICLES.A REDESIGNED TIMING CHAIN AND LUBRICATION SYSTEM WERE IMPLEMENTED LATE IN MY 2002 PRODUCTION (MAY 1, 2002).HENCE, THE SUBJECT VEHICLES FOR THIS INVESTIGATION ARE ALL MY 2000 THROUGH 2002 SATURN L-SERIES VEHICLES EQUIPPED WITH 2.2L L61 ENGINES AND BUILT PRIOR TO MAY 2002 THAT WERE NOT INCLUDED IN RECALL 07V-519. IN THIS INVESTIGATION, ODI ANALYZED UPDATED COMPLAINT AND WARRANTY CLAIMS DATA FOR TIMING CHAIN FAILURES RESULTING IN INCIDENTS OF ENGINE STALL WHILE DRIVING, WHICH COMPRISE SLIGHTLY OVER HALF OF ALL TIMING CHAIN FAILURES OCCURRING IN THE SUBJECT VEHICLE POPULATION.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA SHOWS THAT VEHICLES PRODUCED WITH THE SUBJECT TIMING CHAIN AND LUBRICATION SYSTEM EXPERIENCED ELEVATED FAILURE RATES WHEN COMPARED WITH THE MY 2002 THROUGH 2003 VEHICLES USING THE REVISED COMPONENTS.HOWEVER, THE ANALYSIS ALSO SHOWED THAT THE MY 2001 SATURN L-SERIES VEHICLES RECALLED IN 07V-518 EXPERIENCED A SIGNIFICANTLY HIGHER RATE OF TIMING CHAIN FAILURES THAN THE SUBJECT VEHICLES.THE COMPLAINT RATE FOR TIMING CHAIN FAILURES RESULTING IN SWD WAS APPROXIMATELY 5 TIMES HIGHER FOR THE RECALLED VEHICLES,19.2 INCIDENTS PER THOUSAND VEHICLES (IPTV), THAN FOR THE SUBJECT VEHICLES, 3.7 IPTV.THE WARRANTY CLAIMS RATE FOR CHAIN FAILURES RESULTING IN SWD WAS OVER 3 TIMES HIGHER FOR THE RECALLED VEHICLES, 2.4 PERCENT, THAN FOR THE SUBJECT VEHICLES, 0.7 PERCENT.THE COMPLAINT AND WARRANTY RATES FOR THE SUBJECT VEHICLES WERE SIMILAR TO RATES RECORDED IN OTHER RECENTLY CLOSED INVESTIGATIONS FOR CONDITIONS THAT COULD RESULT IN SWD WITH NO ENGINE RE-START, EA07-015 AND EA07-018.ANALYSIS OF ALL COMPLAINTS, FIELD REPORTS AND WARRANTY CLAIMS FOUND NO ALLEGATIONS OF CRASHES OR INJURIES ASSOCIATED WITH THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AFTER APPROXIMATELY 7 TO 9 YEARS IN SERVICE. ODI'S ANALYSIS OF THE STALLING INCIDENTS THAT HAVE RESULTED FROM TIMING CHAIN FAILURES IN THE SUBJECT VEHICLES FOUND THAT THEY CAN OCCUR AT ANY SPEED AND ALMOST ALWAYS RESULT IN A NO RESTART CONDITION.THESE ARE GENERALLY CONSIDERED TO BE FACTORS THAT INCREASE THE SEVERITY OF STALLING INCIDENTS.HOWEVER, ANALYSIS OF SWD FAILURE RATES IN THE SUBJECT VEHICLES SHOW THAT THEY HAVE OCCURRED AT MUCH LOWER RATES THAN WERE OBSERVED IN THE RECALLED POPULATION.IN ADDITION, THE SWD COMPLAINT AND WARRANTY RATES FOR THE SUBJECT VEHICLES ARE SIMILAR TO RATES OBSERVED IN PRIOR INVESTIGATIONS INVOLVING SIMILAR CATEGORIES OF ENGINE STALL CONSEQUENCES THAT WERE CLOSED WITH NO ACTION.FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IF WARRANTED.
PE05010 · PE
EXTERIOR LIGHTING:BRAKE LIGHTS Investigation
GENERAL MOTORS HAS DECIDED THAT A SAFETY RELATED DEFECT EXISTS ON CERTAIN MODEL SATURN SEDANS AND WAGONS.THE PLASTIC HOUSING IN THE REAR TAIL LAMP ASSEMBLY CAN BECOME DISTORTED IF THE BRAKE LAMPS REMAIN ON FOR AN EXTENDED TIME.THIS CAN CAUSE (1) AN INTERMITTENTLY INOPERATIVE BRAKE/TAIL LAMP BULB OR (2) A SHORT CIRCUIT THAT OPENS A FUSE CAUSING INOPERATIVE BRAKE OR TAIL LAMPS (INCLUDING THE CENTER HIGH-MOUNTED STOP LAMP).GM WILL CONDUCT A SAFETY RECALL ON AN EXPANDED SCOPE OF SATURN VEHICLES TO INSTALL A REINFORCING SOCKET ADAPTER (AND CORRESPONDING NW SOCKET) TO THE BACK OF THE EXISTING LAMP ASSEMBLY.GENERAL MOTORS WILL RECALL 291,652 MY 2000-2002 SATURN LS SEDANS AND MY 2000-2004 SATURN LW WAGONS.THE RECALL IS IDENTIFIED BY NHTSA NUMBER 05V-245.
DP05001 · DP
ELECTRICAL SYSTEM Investigation
ON JANUARY 25, 2005, A SAFETY DEFECT PETITION WAS RECEIVED BY THE OFFICE OF DEFECTS INVESTIGATION (ODI), REQUESTING AN INVESTIGATION OF INOPERATIVE TAIL LAMPS ON MY 2000-2002 SATURN L-SERIES VEHICLES.THE PETITIONER ALLEGES A DEFECT IN THE DESIGN AND ASSEMBLY OF THE TAIL LAMP ASSEMBLY CIRCUIT BOARD AND LIGHT SOCKET CONTACT.THE PETITIONER IDENTIFIED 47 VEHICLE OWNER QUESTIONNAIRE'S (VOQ'S) ASSOCIATED WITH THE ALLEGED DEFECT, AND ODI CONCURS THAT 40 OF THOSE VOQ'S SATISFY THE SCOPE OF THIS INVESTIGATION.ODI HAS FOUND AN ADDITIONAL 10 VOQ'S RELATED TO THE ALLEGATION.ODI HAS GRANTED THE PETITION AND OPENED A PRELIMINARY EVALUATION (PE05-010).
PE03017 · PE
EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH Investigation
THIS PE WAS OPENED BASED ON SIX ODI COMPLAINTS THAT HEADLAMPS FLICKER OFF AND ON, AND TWO ODI COMPLAINTS THAT THE SWITCH IS HOT TO THE TOUCH.THE INVESTIGATION HAS FOUND NO OCCURRENCES OF HEADLAMPS GOING OUT.THE COMPLAINTS ARE DUE TO SPORADIC DIMMING (FLICKERING) OF THE HEADLAMPS AS A RESULT OF VARIATION OF THE VOLTAGE TO THE HEADLAMPS.GM HAS SHOWN THAT A 1.5 -2.0 VOLTAGE DROP OCCURS WHEN OTHER ELECTRICAL DEVICES ARE ACTIVATED, HOWEVER AT NO TIME DO THE HEADLAMPS TURN COMPLETELY OFF.WITH RESPECT TO ALLEGATIONS THAT THE HEADLAMP SWITCH IS HOT TO THE TOUCH, GM REPORTS THAT THE AMBIENT TEMPERATURE OF THE SWITCH IS 35 DEGREES C WHICH IS NOT HOT ENOUGH TO BURN A FINGER OR HAND.IN MAY 2001, GM MODIFIED THE HEADLAMP SWITCH CRIMPING OPERATION TO ELIMINATE THE OCCURRENCE OF HOT SWITCHES.ODI EVALUATED THE COMPLAINTS AND WARRANTY RETURNS AND FOUND NO EVIDENCE OF MELTING OR BURNING. A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.