NHTSA owner reports · September 18, 2026 snapshot.
Fuel System, Gasoline complaints
9 reportsClear category filter34,673 miles · Mar 14, 2012
Fuel System, Gasoline
TL* THE CONTACT OWNS A 2004 CHEVROLET AVEO. THE CONTACT STATED THAT AFTER REFUELING, FUEL BEGAN TO LEAK OUT FROM UNDER NEATH THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE CARBON CANISTER VENT SOLENOID VALVE WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECCURED TWO …
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TL* THE CONTACT OWNS A 2004 CHEVROLET AVEO. THE CONTACT STATED THAT AFTER REFUELING, FUEL BEGAN TO LEAK OUT FROM UNDER NEATH THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE CARBON CANISTER VENT SOLENOID VALVE WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECCURED TWO YEARS LATER. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 34,673 AND THE CURRENT MILEAGE WAS 58,000.
NHTSA ODI #10451702
48,000 miles · Apr 18, 2009
Engine And Engine CoolingFuel System, Gasoline
MY 2004 CHEVY AVEO HAS HAD MORE PROBLEMS THAN YOU CAN IMAGINE. I HAD TO REPLACE THE TIMING BELT TWICE, SEVERE ENGINE DAMAGE BOTH TIMES. OCEAN CHEVROLET AND GM WERE ABSOLUTELY NO HELP. ROTORS HAD TO BE REPLACED AT 48,000 MILES, AN EVAP LEAK FOR ANOTHER $600.00. BOTH TIMING BELT REPAIRS WERE OVER $2000.00 EACH. I HAVE PUT MORE INT…
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MY 2004 CHEVY AVEO HAS HAD MORE PROBLEMS THAN YOU CAN IMAGINE. I HAD TO REPLACE THE TIMING BELT TWICE, SEVERE ENGINE DAMAGE BOTH TIMES. OCEAN CHEVROLET AND GM WERE ABSOLUTELY NO HELP. ROTORS HAD TO BE REPLACED AT 48,000 MILES, AN EVAP LEAK FOR ANOTHER $600.00. BOTH TIMING BELT REPAIRS WERE OVER $2000.00 EACH. I HAVE PUT MORE INTO REPAIRING THIS CAR THAN I PAID FOR IT. GOT RUNAROUNDS FROM THE DEALER AND GM AND WOULDN'T RECOMMEND A CHEVY PRODUCT TO ANYONE. *TR
NHTSA ODI #10265926
Mileage unknown · Dec 29, 2007
Electrical SystemExterior LightingFuel System, Gasoline
FIRST THING THAT WENT WRONG WITH THE CAR IS THE CLOCK FOR NO REASON AT ALL IT CHANGES TO 12:00 IT DOES IT WHEN THE CAR IS ON AND RUNNING IT ALSO DOES IT WHEN YOU FIRST TURN THE CAR ON. THIS HAS BEEN REPLACED ONCE AND HAS FAILED A SECOND TIME AGAIN. SECOND IS MY GEAR SHIFTER I HAVE AN AUTOMATIC AND IT STICKS IN PARK ALL THE TIM…
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FIRST THING THAT WENT WRONG WITH THE CAR IS THE CLOCK FOR NO REASON AT ALL IT CHANGES TO 12:00 IT DOES IT WHEN THE CAR IS ON AND RUNNING IT ALSO DOES IT WHEN YOU FIRST TURN THE CAR ON. THIS HAS BEEN REPLACED ONCE AND HAS FAILED A SECOND TIME AGAIN. SECOND IS MY GEAR SHIFTER I HAVE AN AUTOMATIC AND IT STICKS IN PARK ALL THE TIME AND ALL YEAR LONG THE FIRST TIME IT HAPPENED I WAS SITTING AT A GAS PUMP AND I WAS COMPLETELY STUCK AND IT WOULDN'T MOVE SO I HAD THE CAR TOWED TO MY DEALER AND THEY FIXED IT BUT IT STUCK 10 + MORE TIMES SINCE 5 TIMES I TOOK IT TO THE DEALER AND 3 TIMES IT WAS REPAIRED. I BOUGHT MY CAR IN 2004 AND TOO THIS DAY IT STILL STICKS I ACTUALLY HAVE PARTS BEING ORDERED AGAIN TO GET IT FIXED. THIRD IS MY KEY AND ALARM I CAN'T USE MY SECURITY ALARM ON MY CAR BECAUSE WHEN ITS SET ON IT GOES OFF ABOUT EVERY HALF HOUR FOR NO REASON. FOURTH IS MY HEAD LIGHTS AND BRAKE LIGHTS. I WAS TRAVELING IN A BIG CITY BUFFALO WHEN ALL THREE OF MY BRAKE LIGHTS STOPPED WORKING I WENT TO AN AUTO SHOP TO GET THEM REPLACED AND THEY REPLACED THEM RIGHT THERE AND THE NEW ONES WOULDN'T EVEN WORK. MY HEADLIGHTS GO OFF WHEN EVER AND TURN BACK ON AFTER AWHILE. EVEN WHEN I'M DRIVING DOWN THE STREET BUT THE DEALER CLAIMS THEY CAN'T FIND ANYTHING WRONG WITH THAT PART. FIFTH IS MY BALL JOINT WAS DEFECTED AND I WENT THREW 4 PAIRS OF TIRES WITHIN 2 YEARS BEFORE MY DEALER REALIZED WHAT THAT PROBLEM WAS. SIXTH BOTH THE REAR STRUT HOLDING MOUNTS JUST FELL OFF CAR AND MY STRUTS WENT THREW MY BACK BOTTOM TRUNK. THE DEALER SAID HE NEVER SEEM ANYTHING LIKE IT. THE RIGHT SIDE WENT FIRST AND THAT WAS FIXED THEN ABOUT A WEEK LATER THE LEFT SIDE WENT I REPLACED EVERYTHING BRAND NEW AND IT HAPPENED AGAIN A THIRD TIME THE LEFT STRUT AND HOLDING MOUNT FAILED. I ACTUALLY HAVE PARTS ORDERED FOR THAT AS WELL RIGHT NOW. A SMALLER COMPLAINT IS THE CIG. LIGHTER OUTLET DOESN'T WORK, AND THAT'S BEING REPLACED FOR THE SECOND TIME. *TR
NHTSA ODI #10213142
48,000 miles · Nov 14, 2006
Fuel System, Gasoline
MAJOR FUEL LEAK ON MY 2004 CHEVROLET AVEO. LEFT ME STRANDED. PUMPED OUT 9 GALLONS OF GAS IN 20 MILES. LUCKILY NO FIRE. FOUND THE PLASTIC RETAINER HOLDING THE MAIN FUEL LINE CRACKED AND ALLOWED THE FUEL LINE TO COME LOOSE SPRAYING GAS OVER THE BOTTOM OF THE CAR. THEY WILL PUT ANOTHER PLASTIC RETAINER ON THE LINE BUT HOW LONG WILL…
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MAJOR FUEL LEAK ON MY 2004 CHEVROLET AVEO. LEFT ME STRANDED. PUMPED OUT 9 GALLONS OF GAS IN 20 MILES. LUCKILY NO FIRE. FOUND THE PLASTIC RETAINER HOLDING THE MAIN FUEL LINE CRACKED AND ALLOWED THE FUEL LINE TO COME LOOSE SPRAYING GAS OVER THE BOTTOM OF THE CAR. THEY WILL PUT ANOTHER PLASTIC RETAINER ON THE LINE BUT HOW LONG WILL THAT LAST? CONSIDER THIS A MAJOR DEFECT AND COULD LEAD TO VEHICLE FIRES WHICH COULD BE DEADLY. I WAS LUCKY BUT SOMEONE ELSE MIGHT NOT BE. I DO NOT LIKE THE FIX. A BETTER FORM OF LINE CLAMPING SHOULD BE USED. I NOTIFIED GM AND THERE IS NO RECALLS AT THIS TIME. THEY TOOK THE INFORMATION AND PUT IT ON FILE. I WOULD LIKE TO BE COMPENSATED FOR TOWING AND THE LOST FUEL. GM WILL NOT DO THIS. NOTE:THE CAR IS AT KNEBEL AUTO IN HIGHLAND ILL NOT THE DEALER BECAUSE IT IS OUT OF WARRANTY. *JB
NHTSA ODI #10173514
Mileage unknown · Oct 10, 2006
Fuel System, GasolineService Brakes, HydraulicSteering
I PURCHASED MY 04 CHEVY AVEO ON JUNE 20,06. FIVE DAYS LATER THE BRAKES WERE METAL TO METAL. MY CAR WAS NOT SAFETY INSPECTED BEFORE THE SALE. SINCE THEN I HAVE TAKEN THE CAR BACK TO WHERE I PURCHASED IT SEVERAL TIMES AND HAVE EVEN HAD THE SERVICE MANAGER TO RIDE WITH ME TO SHOW HIM THAT THE BRAKES ARE STICKING. (THE CALIPERS NEE…
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I PURCHASED MY 04 CHEVY AVEO ON JUNE 20,06. FIVE DAYS LATER THE BRAKES WERE METAL TO METAL. MY CAR WAS NOT SAFETY INSPECTED BEFORE THE SALE. SINCE THEN I HAVE TAKEN THE CAR BACK TO WHERE I PURCHASED IT SEVERAL TIMES AND HAVE EVEN HAD THE SERVICE MANAGER TO RIDE WITH ME TO SHOW HIM THAT THE BRAKES ARE STICKING. (THE CALIPERS NEED TO BE REPLACED) TIM MARBURGER CHRYSLER/DODGE TRIED TO SAY THAT IS WAS A WARPED ROTOR DUE TO EXCESSIVE MOUNTAIN DRIVING, MY CAR WAS ONLY DRIVEN 7 MILES ONE WAY TO GO CAMPING AND 7 MILES BACK ONCE A WEEK. I WOULD HARDLY CALL THIS EXCESSIVE. THE FIRST TANK OF GAS I GOT THE MILEAGE OF 284 MILES SINCE 06/20/06 UNTIL NOW 10/10/06 MY GAS MILEAGE FOR A TANK OF GAS IS NOW 210 MILES. NOBODY AT THE DEALERSHIP HAS OFFERED TO FIX MY CAR. I HAVE BEEN CUSSED, TALKED TO LIKE A DOG. THE GENERAL MANAGER DENNY FRUITH SLAMMED MY CAR DOOR AND PROCEEDED TO ARGUE WITH ME IN THE FRONT PARKING LOT IN FRONT OF THE SHOWROOM DOORS. REFUSED TO FIX MY CAR AND IT WAS STILL UNDER WARRANTY, THE DEALERSHIP PUT MY LUG NUTS ON SO TIGHT THAT THEY COULD NOT BE MANUALLY TAKEN OFF. THE VICE PRESIDENT OF THE COMPANY MR. FELIX MCCLAT REFUSED TO FIX MY BRAKES AND ALSO REFUSED TO EVEN LET ME COME TO THE DEALERSHIP AND HAVE THEM LOOSEN MY LUG NUTS. AND THE CAR WAS STILL UNDER WARRANTY. THE BRAKES ON MY CAR WILL PUT THEMSELVES ON WITHOUT ME PRESSING THE PEDALS. AND WHEN YOU DO PRESS THE PEDALS YOU CAN BE GOING DOWN HILL AND TAKE YOUR FOOT OFF THE PEDAL AND THE BRAKES GRAB AND THE CAR WILL COME TO ALMOST A COMPLETE STOP...DOWN HILL. ALL THIS WAS SHOWN TO THE SERVICE MANAGER DAVID ANDERSON AND THE CAR HAS NOT BEEN FIXED YET. *JB
NHTSA ODI #10170432
9,734 miles · Nov 17, 2005
Fuel System, GasolineService Brakes, Hydraulic
SES LIGHT COMES ON NOT DESCRIBING THE PROBLEM. THE FUEL SYSTEM IS MALFUNCTIONING, GAS ESCAPES SOMEWHERE, NOT GETTING THE ACTUAL GAS MILEAGE FOR THE VEHICLE. FILL UP ON WED OF ONE WEEK, USE ONLY 34 MILES, MUST FILL UP BY TUESDAY OF NEXT WEEK, THE BRAKES MAKE LOUD NOISE LIKE BRAKES ARE GOING OUT, MORE OF STEEL RUBBING, PULLS EXCES…
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SES LIGHT COMES ON NOT DESCRIBING THE PROBLEM. THE FUEL SYSTEM IS MALFUNCTIONING, GAS ESCAPES SOMEWHERE, NOT GETTING THE ACTUAL GAS MILEAGE FOR THE VEHICLE. FILL UP ON WED OF ONE WEEK, USE ONLY 34 MILES, MUST FILL UP BY TUESDAY OF NEXT WEEK, THE BRAKES MAKE LOUD NOISE LIKE BRAKES ARE GOING OUT, MORE OF STEEL RUBBING, PULLS EXCESSIVELY TO THE RIGHT. TOOK VEHICLE IN FOR REPAIR ON THE BRAKES, WAS TOLD DUST WAS ON THE ROTORS, CLEANED OUT, PROBLEM STILL EXIST, NOW A BUCKLING IS FELT WHEN BRAKES ARE APPLIED. AS FOR THE GAS PROBLEM, CAR WAS LEFT OVERNIGHT, I TOLD THE DEALERSHIP, I DO NOT WANT MY CAR BACK UNTIL THEY FIND THE PROBLEM.. CHECK THE FUEL INJECTORS, THE GAS TANK, CHECK THE FUEL PUMP, CHECK ALL THE COMPONENTS OF THE GAS LINE.. I DO NOT SMELL GAS, THERE IS NO GAS ON THE GROUND. I HAVE A LOANER CAR FOR NOW. AS FOR THE SES LIGHT, I SHOULD DESCRIBE WHAT THE PROBLEM IS SO THAT THE DEALERSHIP SERVICE DEPT CAN GO STRAIGHT TO THE PROBLEM. THE CAR PULL EXCESSIVELY TO THE RIGHT AND LEFT, THIS TOO WILL BE CHECKED OUT BY THE DEALERSHIP. NO UPDATE RESOLUTION SO FAR. WILL KEEP YOU POSTED. THE CLOCK MALFUNCTIONED. A NEW CLOCK WAS REPLACED THE CAR WAS PURCHASED NEW, AUG 2003, WITH 6 MILES ON THE ODOMETER. TODAY, 2 YEARS, 2 MONTHS LATER, I HAVE 9766 MILES ON THE ODOMETER AND MY CAR HAS BEEN TO THE SERVICE DEPT 7 TIMES FOR MALFUNCTIONING PROBLEMS. *JB
NHTSA ODI #10142949
3,000 miles · Jul 12, 2005
Electrical SystemFuel System, Gasoline
DT: CALLER SAYS THAT WHILE SHE LETS THE VEHICLE WARM UP IT MAKES A BOOM BOOM NOISE FROM THE FUEL LINE OR PUMP. CALLER SAYS IT WILL DO THIS UNTIL IT WARMS UP AND THEN IT STOPS. DEALER SAYS IT IS A CHARACTERISTIC OF THE CAR. MANUFACTURER SAID THE SAME THING. CALLER SAYS THE KEY GETS HOT WHILE IT THE IGNITION. *NM
NHTSA ODI #10128450
3,000 miles · Nov 24, 2004
Fuel System, Gasoline
SPRING IN GAS CAP BREAKS PREVENTING OWNER FROM REMOVING GAS CAP AND REFUELING VEHICLE. GAS CAP REPLACED BY DEALER AND NEW ONE BROKE AGAIN WITHIN TWO WEEKS. *NM
NHTSA ODI #10100518
7,989 miles · Oct 18, 2004
Fuel System, GasolineSeat Belts
THE GAS CAP BROKE WEEKS AFTER PURCHASING THE VEHICLE. THE CONSUMER WAS UNABLE TO REMOVE THE GAS CAP TO FILL THE TANK. THE DEALER STATED THAT THE SPRING BROKE.. THE DEALER TOOK IT OFF SO THAT THE CONSUMER COULD PLACE GAS IN THE TANK. THE CONSUMER WAS UNABLE TO GET ANOTHER CAP BECAUSE THE DEALER WAS UNABLE TO OBTAIN ONE. THE R…
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THE GAS CAP BROKE WEEKS AFTER PURCHASING THE VEHICLE. THE CONSUMER WAS UNABLE TO REMOVE THE GAS CAP TO FILL THE TANK. THE DEALER STATED THAT THE SPRING BROKE.. THE DEALER TOOK IT OFF SO THAT THE CONSUMER COULD PLACE GAS IN THE TANK. THE CONSUMER WAS UNABLE TO GET ANOTHER CAP BECAUSE THE DEALER WAS UNABLE TO OBTAIN ONE. THE RIGHT REAR PASSENGER SEAT BELT RETRACTOR WAS DEFECTIVE AND A RECALL WAS ISSUED, HOWEVER NO PARTS WERE AVAILABLE. NHTSA RECALL 04V407000. *JB
NHTSA ODI #10097028
NHTSA investigations
2EA08005 · Stuck Throttle Valve
Opened Feb 14, 2008 · Closed Oct 14, 2008
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv); Vehicle Speed Control
TO DATE, THE OFFICE OF DEFECTS INVESTIGATION (ODI) IS AWARE OF 29 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 52 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 69 UNIQUE SUBJECT VEHICLES.BECAUSE THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING, ODI UPGRADED THIS INVESTIGATION TO AN ENGINEERING ANALYSIS ON FEBRUARY 14, 2008 SO THAT IT COULD CONTINUE TO MONITOR THE FIELD EXPERIENCE DURING THE 2007/2008 WINTER SEASON.BY LETTER DATED MAY 22, 2008, GENERAL MOTORS CORP. (GM) SUPPLEMENTED ITS PREVIOUS INFORMATION REQUEST RESPONSE WITH FIELD DATA RECEIVED BY GM THROUGH MAY 1, 2008.ACCORDING TO GM, WHEN MOISTURE FREEZES IN THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM AND/OR THE ENGINE AIR INTAKE TRACT IT IS MOST OFTEN OBSERVED AS A HARD TO START/NO START CONDITION, THROTTLE STUCK CLOSED, ROUGH RUNNING ENGINE, STALLING AT IDLE, OR OIL LEAKAGE.OF THE 29 COMPLAINTS RELATED TO STUCK THROTTLE, ODI IDENTIFIED 5 REPORTS THAT ALLEGE UNWANTED ACCELERATION, 13 REPORTS DESCRIBE AN APPARENT HIGH-IDLE CONDITION AT START UP OR WHEN SLOWING THE VEHICLE TO A STOP WITHOUT ANY ALLEGATION OF UNWANTED ACCELERATION OR DIMINISHED BRAKING PERFORMANCE, AND THE REMAINING 11 REPORTS DESCRIBE AMBIGUOUS ALLEGATIONS OF STUCK THROTTLE WITHOUT REGARD TO SEVERITY OR CONSEQUENCE.ODI ANALYSIS OF FIELD INCIDENT DATA SHOWS THAT THE COMPLAINT AND WARRANTY TRENDS APPEAR TO BE IN DECLINE, WITH ONLY 1 ADDITIONAL COMPLAINT AND 6 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT RECEIVED BY GM SINCE APRIL 2007. A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION HAS BEEN 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.
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv)
TO DATE, THE OFFICE OF DEFECTS INVESTIGATION (ODI) IS AWARE OF 29 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 52 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 69 UNIQUE SUBJECT VEHICLES.BECAUSE THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING, ODI UPGRADED THIS INVESTIGATION TO AN ENGINEERING ANALYSIS ON FEBRUARY 14, 2008 SO THAT IT COULD CONTINUE TO MONITOR THE FIELD EXPERIENCE DURING THE 2007/2008 WINTER SEASON.BY LETTER DATED MAY 22, 2008, GENERAL MOTORS CORP. (GM) SUPPLEMENTED ITS PREVIOUS INFORMATION REQUEST RESPONSE WITH FIELD DATA RECEIVED BY GM THROUGH MAY 1, 2008.ACCORDING TO GM, WHEN MOISTURE FREEZES IN THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM AND/OR THE ENGINE AIR INTAKE TRACT IT IS MOST OFTEN OBSERVED AS A HARD TO START/NO START CONDITION, THROTTLE STUCK CLOSED, ROUGH RUNNING ENGINE, STALLING AT IDLE, OR OIL LEAKAGE.OF THE 29 COMPLAINTS RELATED TO STUCK THROTTLE, ODI IDENTIFIED 5 REPORTS THAT ALLEGE UNWANTED ACCELERATION, 13 REPORTS DESCRIBE AN APPARENT HIGH-IDLE CONDITION AT START UP OR WHEN SLOWING THE VEHICLE TO A STOP WITHOUT ANY ALLEGATION OF UNWANTED ACCELERATION OR DIMINISHED BRAKING PERFORMANCE, AND THE REMAINING 11 REPORTS DESCRIBE AMBIGUOUS ALLEGATIONS OF STUCK THROTTLE WITHOUT REGARD TO SEVERITY OR CONSEQUENCE.ODI ANALYSIS OF FIELD INCIDENT DATA SHOWS THAT THE COMPLAINT AND WARRANTY TRENDS APPEAR TO BE IN DECLINE, WITH ONLY 1 ADDITIONAL COMPLAINT AND 6 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT RECEIVED BY GM SINCE APRIL 2007. A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION HAS BEEN 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.
Vehicle Speed Control
TO DATE, THE OFFICE OF DEFECTS INVESTIGATION (ODI) IS AWARE OF 29 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 52 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 69 UNIQUE SUBJECT VEHICLES.BECAUSE THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING, ODI UPGRADED THIS INVESTIGATION TO AN ENGINEERING ANALYSIS ON FEBRUARY 14, 2008 SO THAT IT COULD CONTINUE TO MONITOR THE FIELD EXPERIENCE DURING THE 2007/2008 WINTER SEASON.BY LETTER DATED MAY 22, 2008, GENERAL MOTORS CORP. (GM) SUPPLEMENTED ITS PREVIOUS INFORMATION REQUEST RESPONSE WITH FIELD DATA RECEIVED BY GM THROUGH MAY 1, 2008.ACCORDING TO GM, WHEN MOISTURE FREEZES IN THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM AND/OR THE ENGINE AIR INTAKE TRACT IT IS MOST OFTEN OBSERVED AS A HARD TO START/NO START CONDITION, THROTTLE STUCK CLOSED, ROUGH RUNNING ENGINE, STALLING AT IDLE, OR OIL LEAKAGE.OF THE 29 COMPLAINTS RELATED TO STUCK THROTTLE, ODI IDENTIFIED 5 REPORTS THAT ALLEGE UNWANTED ACCELERATION, 13 REPORTS DESCRIBE AN APPARENT HIGH-IDLE CONDITION AT START UP OR WHEN SLOWING THE VEHICLE TO A STOP WITHOUT ANY ALLEGATION OF UNWANTED ACCELERATION OR DIMINISHED BRAKING PERFORMANCE, AND THE REMAINING 11 REPORTS DESCRIBE AMBIGUOUS ALLEGATIONS OF STUCK THROTTLE WITHOUT REGARD TO SEVERITY OR CONSEQUENCE.ODI ANALYSIS OF FIELD INCIDENT DATA SHOWS THAT THE COMPLAINT AND WARRANTY TRENDS APPEAR TO BE IN DECLINE, WITH ONLY 1 ADDITIONAL COMPLAINT AND 6 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT RECEIVED BY GM SINCE APRIL 2007. A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION HAS BEEN 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.
PE07051 · Stuck Throttle Valve
Opened Oct 19, 2007 · Closed Feb 14, 2008
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv); Vehicle Speed Control
ON OCTOBER 19, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED STUCK THROTTLE INCIDENTS DUE TO ICE FORMATION WITHIN THE ENGINE AIR INTAKE TRACT IN CERTAIN MODEL YEAR (MY) 2004-2005 CHEVROLET AVEO VEHICLES MANUFACTURED FOR SALE OR LEASE IN THE UNITED STATES.THIS INVESTIGATION WAS PROMPTED BY A SAFETY RECALL CAMPAIGN (05F-069) CONDUCTED BY GENERAL MOTORS CORP. (GM) INVOLVING SUBSTANTIALLY SIMILAR VEHICLES MANUFACTURED FOR SALE OR LEASE IN CANADA.AT THAT TIME, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #05-06-04-065) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES.GM SUBSEQUENTLY REVISED THE CANADIAN RECALL CAMPAIGN TO INCLUDE MORE DETAILED INSTRUCTIONS AFTER IT DISCOVERED CERTAIN VEHICLES WERE NOT PROPERLY SERVICED UNDER THE ORIGINAL RECALL CAMPAIGN.GM REVISED THE CANADIAN RECALL CAMPAIGN A SECOND TIME TO INCLUDE MORE SUBSTANTIAL CHANGES TO THE THROTTLE BODY, INTAKE MANIFOLD, POSITIVE CRANKCASE VENTILATION (PCV) AND ENGINE COOLING SYSTEMS TO FURTHER REDUCE THE LIKELIHOOD OF ICING WITHIN THE ENGINE AIR INTAKE TRACT.AGAIN, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #08-06-04-009) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES USING THE REVISED PROCEDURE.ODI IS AWARE OF 28 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 46 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 63 UNIQUE SUBJECT VEHICLES.THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING THE WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING.HOWEVER, THE INFORMATION PROVIDED IN GM'S RESPONSE TO ODI'S INFORMATION REQUEST LETTER DATED NOVEMBER 2, 2007, DOES NOT CAPTURE EVENTS THAT MAY HAVE OCCURRED DURING THE MOST RECENT WINTER MONTHS.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-005) TO FURTHER STUDY THE FREQUENCY OF THE ALLEGED DEFECT.
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv)
ON OCTOBER 19, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED STUCK THROTTLE INCIDENTS DUE TO ICE FORMATION WITHIN THE ENGINE AIR INTAKE TRACT IN CERTAIN MODEL YEAR (MY) 2004-2005 CHEVROLET AVEO VEHICLES MANUFACTURED FOR SALE OR LEASE IN THE UNITED STATES.THIS INVESTIGATION WAS PROMPTED BY A SAFETY RECALL CAMPAIGN (05F-069) CONDUCTED BY GENERAL MOTORS CORP. (GM) INVOLVING SUBSTANTIALLY SIMILAR VEHICLES MANUFACTURED FOR SALE OR LEASE IN CANADA.AT THAT TIME, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #05-06-04-065) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES.GM SUBSEQUENTLY REVISED THE CANADIAN RECALL CAMPAIGN TO INCLUDE MORE DETAILED INSTRUCTIONS AFTER IT DISCOVERED CERTAIN VEHICLES WERE NOT PROPERLY SERVICED UNDER THE ORIGINAL RECALL CAMPAIGN.GM REVISED THE CANADIAN RECALL CAMPAIGN A SECOND TIME TO INCLUDE MORE SUBSTANTIAL CHANGES TO THE THROTTLE BODY, INTAKE MANIFOLD, POSITIVE CRANKCASE VENTILATION (PCV) AND ENGINE COOLING SYSTEMS TO FURTHER REDUCE THE LIKELIHOOD OF ICING WITHIN THE ENGINE AIR INTAKE TRACT.AGAIN, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #08-06-04-009) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES USING THE REVISED PROCEDURE.ODI IS AWARE OF 28 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 46 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 63 UNIQUE SUBJECT VEHICLES.THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING THE WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING.HOWEVER, THE INFORMATION PROVIDED IN GM'S RESPONSE TO ODI'S INFORMATION REQUEST LETTER DATED NOVEMBER 2, 2007, DOES NOT CAPTURE EVENTS THAT MAY HAVE OCCURRED DURING THE MOST RECENT WINTER MONTHS.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-005) TO FURTHER STUDY THE FREQUENCY OF THE ALLEGED DEFECT.
Vehicle Speed Control
ON OCTOBER 19, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED STUCK THROTTLE INCIDENTS DUE TO ICE FORMATION WITHIN THE ENGINE AIR INTAKE TRACT IN CERTAIN MODEL YEAR (MY) 2004-2005 CHEVROLET AVEO VEHICLES MANUFACTURED FOR SALE OR LEASE IN THE UNITED STATES.THIS INVESTIGATION WAS PROMPTED BY A SAFETY RECALL CAMPAIGN (05F-069) CONDUCTED BY GENERAL MOTORS CORP. (GM) INVOLVING SUBSTANTIALLY SIMILAR VEHICLES MANUFACTURED FOR SALE OR LEASE IN CANADA.AT THAT TIME, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #05-06-04-065) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES.GM SUBSEQUENTLY REVISED THE CANADIAN RECALL CAMPAIGN TO INCLUDE MORE DETAILED INSTRUCTIONS AFTER IT DISCOVERED CERTAIN VEHICLES WERE NOT PROPERLY SERVICED UNDER THE ORIGINAL RECALL CAMPAIGN.GM REVISED THE CANADIAN RECALL CAMPAIGN A SECOND TIME TO INCLUDE MORE SUBSTANTIAL CHANGES TO THE THROTTLE BODY, INTAKE MANIFOLD, POSITIVE CRANKCASE VENTILATION (PCV) AND ENGINE COOLING SYSTEMS TO FURTHER REDUCE THE LIKELIHOOD OF ICING WITHIN THE ENGINE AIR INTAKE TRACT.AGAIN, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #08-06-04-009) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES USING THE REVISED PROCEDURE.ODI IS AWARE OF 28 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 46 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 63 UNIQUE SUBJECT VEHICLES.THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING THE WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING.HOWEVER, THE INFORMATION PROVIDED IN GM'S RESPONSE TO ODI'S INFORMATION REQUEST LETTER DATED NOVEMBER 2, 2007, DOES NOT CAPTURE EVENTS THAT MAY HAVE OCCURRED DURING THE MOST RECENT WINTER MONTHS.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-005) TO FURTHER STUDY THE FREQUENCY OF THE ALLEGED DEFECT.
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