NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
62 reportsClear category filterMileage unknown · Oct 15, 2009
Engine And Engine Cooling
THE THERMOSTAT HOUSING BLEW APART AND I WAS 75 MILES AWAY FROM HOME ON A SUNDAY. I REPLACED IT WITH AND 12 DAYS LATER IT BLEW APART AGAIN. MY CAR HAS BEEN IN A RELIABLE GARAGE NOW FOR 2 WEEKS AND THEY CAN'T GET THE PART. NO LOCAL DEALERS HAVE THE PART AND THE WAREHOUSE IS "OUT OF STOCK". I HAD A 7 YEAR OLD CHILD IN MY CAR. …
Read full complaint
THE THERMOSTAT HOUSING BLEW APART AND I WAS 75 MILES AWAY FROM HOME ON A SUNDAY. I REPLACED IT WITH AND 12 DAYS LATER IT BLEW APART AGAIN. MY CAR HAS BEEN IN A RELIABLE GARAGE NOW FOR 2 WEEKS AND THEY CAN'T GET THE PART. NO LOCAL DEALERS HAVE THE PART AND THE WAREHOUSE IS "OUT OF STOCK". I HAD A 7 YEAR OLD CHILD IN MY CAR. THIS SHOULD HAVE BEEN A RECALL BY GM AND I INTEND TO GO AS FAR AS THE CEO IF I HAVE TO. THIS IS COSTING ME A GREAT DEAL OF MONEY TO RENT A CAR. I WANT MY MONEY BACK FROM GM ALONG WITH A LETTER OF APOLOGY. SHAME ON THEM. *TR
NHTSA ODI #10287479
79,000 miles · Sep 28, 2009
Engine And Engine Cooling
PLASTIC ELBOW ON 2005 CHEVY AVEO, DUE TO HEAT, BROKE, CAUSING ENGINE TO OVERHEAT, HAD TO HAVE ENGINE HEAD RESURFACED IN MARCH 2009; THEN CATALYTIC CONVERTER WENT OUT. AFTER FIXING IGNITER, TEST PROVED, ENGINE WAS ONLY FIRING AT LESS THEN 50% ON CYLINDERS 1 & 2 DUE TO LACK OF COMPRESSION, THAT BEGAN WITH PLASTIC ELBOW BREAKING.…
Read full complaint
PLASTIC ELBOW ON 2005 CHEVY AVEO, DUE TO HEAT, BROKE, CAUSING ENGINE TO OVERHEAT, HAD TO HAVE ENGINE HEAD RESURFACED IN MARCH 2009; THEN CATALYTIC CONVERTER WENT OUT. AFTER FIXING IGNITER, TEST PROVED, ENGINE WAS ONLY FIRING AT LESS THEN 50% ON CYLINDERS 1 & 2 DUE TO LACK OF COMPRESSION, THAT BEGAN WITH PLASTIC ELBOW BREAKING. *TR
NHTSA ODI #10285550
12,000 miles · Aug 7, 2009
Engine And Engine Cooling
2005 CHEVY AVEO WITH 12,000 MILES. FOR THE PAST TWO DAYS, WHEN I LET UP ON THE THROTTLE GENTLY, THE CAR DOES NOT SLOW DOWN, EXACTLY LIKE COMPLAINT # 10262822 DESCRIBED. THE PEDAL FEELS AS THOUGH THE LINKAGE IS STICKING SOMEWHERE. IF I "HIT" THE THROTTLE HARD AND IMMEDIATELY RELEASE, THE THROTTLE RETURNS TO IDLE POSITION. *TR
NHTSA ODI #10279673
12,000 miles · Jul 30, 2009
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2005 CHEVROLET AVEO. WHILE MERGING ONTO THE HIGHWAY AT AN UNKNOWN SPEED, THE VEHICLE SHUT OFF. IT TOOK APPROXIMATELY FIVE MINUTES FOR THE VEHICLE TO RESTART AND THEN IT SHUT OFF AGAIN. THERE WERE NO WARNINGS PRIOR TO THE FAILURES. THE VEHICLE WAS TAKEN TO THE DEALER TWICE, BUT THEY COULD NOT DIAGNOSE TH…
Read full complaint
TL*THE CONTACT OWNS A 2005 CHEVROLET AVEO. WHILE MERGING ONTO THE HIGHWAY AT AN UNKNOWN SPEED, THE VEHICLE SHUT OFF. IT TOOK APPROXIMATELY FIVE MINUTES FOR THE VEHICLE TO RESTART AND THEN IT SHUT OFF AGAIN. THERE WERE NO WARNINGS PRIOR TO THE FAILURES. THE VEHICLE WAS TAKEN TO THE DEALER TWICE, BUT THEY COULD NOT DIAGNOSE THE CAUSE OF THE FAILURE. DURING THE THIRD VISIT, THE CHECK ENGINE LIGHT ILLUMINATED AND THE DEALER STATED THAT THE OXYGEN SENOR WAS ACTIVATED AND WOULD NOT CAUSE THE VEHICLE TO SHUT OFF. THE MANUFACTURER ADVISED THE CONTACT TO TAKE THE VEHICLE BACK TO THE DEALER. THE FAILURE MILEAGE WAS 12,000 AND CURRENT MILEAGE WAS 39,000.
NHTSA ODI #10278759
49,100 miles · Jul 28, 2009
Engine And Engine Cooling
DRIVING MY 2005 CHEVROLET AVEO ON THE HIGHWAY FOR 10 MIN NOTICED SMOKE OR STEAM COMING OUT OF THE PASSENGER SIDE HOOD PLASTIC THERMOSTAT HOUSING CRACKED AT 49,100 MILES. DAMAGED ENGINE DUE TO OVERHEATING NO WARNING LIGHTS CAME UP BEFORE THERMOSTAT HOUSING BROKE. *TR
NHTSA ODI #10278542
65,000 miles · Jun 15, 2009
Engine And Engine Cooling
2005 CHEVY AVEO...TIMING BELT SNAPPED WITH NO WARNING IN LEFT HAND LANE ON HIGHWAY. I SERVICED MY CAR AND NEVER WAS GIVEN WARNING BY CHEVY DEALER I WENT TO. CAR JUST STOPPED COLD...VERY DANGEROUS. NOW THE MOTOR IS TRASHED, THE CAR USELESS. THIS VEHICLE NEEDS TO BE RECALLED! *TR
NHTSA ODI #10273845
78,316 miles · Mar 30, 2009
Engine And Engine Cooling
NORMAL DRIVING OF VEHICLE PLASTIC THERMOSTAT HOUSING UNIT BROKE IN HALF AND EXPLODED COOLANT OVER THE ENGINE AND WINDSHIELD OF VEHICLE. CALLED THE DEALER AND WAS INFORMED THAT THEY KNOW THAT THE PART IS FAULTY AND WEARS OUT IN UNDER 40,000 MILES AND HAVE REDESIGNED THE PART USING POT METAL WHICH WILL NOW COST 89.99 TO REPLACE. T…
Read full complaint
NORMAL DRIVING OF VEHICLE PLASTIC THERMOSTAT HOUSING UNIT BROKE IN HALF AND EXPLODED COOLANT OVER THE ENGINE AND WINDSHIELD OF VEHICLE. CALLED THE DEALER AND WAS INFORMED THAT THEY KNOW THAT THE PART IS FAULTY AND WEARS OUT IN UNDER 40,000 MILES AND HAVE REDESIGNED THE PART USING POT METAL WHICH WILL NOW COST 89.99 TO REPLACE. THIS IS THE SECOND TIME WE HAVE HAD TO REPLACE THIS SAME PART ON THIS CAR IN THE THREE YEARS WE HAVE OWNED IT. SO THEY KNOW THE PART IS FAULTY AND THEN CHARGE FIVE TIME WHAT THE ORIGINAL PARTS REPLACEMENT COST WAS BECAUSE THEY KNOW YOU HAVE TO REPLACE IT THROUGH THEM. *TR
NHTSA ODI #10263623
30,000 miles · Mar 23, 2009
Electrical SystemEngine And Engine CoolingFuel System, GasolineInjury
I TRADED IN A 2004 P.T.CRUISER TO GET A 2005 CHEVY AVEO AT THE TIME IT HAD 21000 MILES WHEN I GOT IT. MY WARRANTY WAS GOOD TILL 36000. I HAD LOTS OF ISSUES WITH A NOISE THAT STILL TO THIS DAY HAS NOT BEEN CORRECTED EVEN AFTER THREE ATTEMPTS UNDER MY CAR BY THE CHEVY SERVICE DEPT. I THEN HAD A COMPUTER RECALL OR SOMETHING THAT HA…
Read full complaint
I TRADED IN A 2004 P.T.CRUISER TO GET A 2005 CHEVY AVEO AT THE TIME IT HAD 21000 MILES WHEN I GOT IT. MY WARRANTY WAS GOOD TILL 36000. I HAD LOTS OF ISSUES WITH A NOISE THAT STILL TO THIS DAY HAS NOT BEEN CORRECTED EVEN AFTER THREE ATTEMPTS UNDER MY CAR BY THE CHEVY SERVICE DEPT. I THEN HAD A COMPUTER RECALL OR SOMETHING THAT HAD TO BE REPLACED I ALSO HAD A GAS CAP THAT MALFUNCTIONED AND A CLOCK THAT HAD TO BE REPLACED. THOSE ARE THE NON LIFE THREATENING ISSUES. I HAD AN INCIDENT INSIDE OF THE ORIGINAL WARRANTY WHERE THE CAR THREW PARTS OUT OF THE ENGINE. IT WAS THE SERPENTINE BELT AND THE BRACKET THAT WAS METAL THAT IT WAS MOUNTED ON BROKE OUT OF THE ENGINE AS I WAS DRIVING IT. I AM CURRENTLY AT 55000 AND I HAVE THE POWER TRAIN ON IT. IN THE LAST MONTH I HAVE HAD THE CAR IN MY POSSESSION 1 WEEK THE REST IT'S BEEN IN THE SERVICE DEPT. A MONTH AGO THE PLASTIC AND YES THAT'S PLASTIC HOUSING FOR THE THERMOSTAT BLEW APART ON THE INTERSTATE CAUSING US TO HAVE TO DIAL 911 TO GET HELP BECAUSE WE WERE TRAPPED. TWO WEEKS AGO IT SPIT OUT THE TIMING BELT AND THE VALVES GOT BENT AND THE VALVE COVER WAS DAMAGED. WE DON'T KNOW WHAT PARTICLES ENDED UP IN THE ENGINE FOR NOW. I HAVE CONTACTED CHEVROLET ON ALL THESE ISSUES AND I ASKED THEM BEFORE MY WARRANTY WENT OUT AND RIGHT AFTER THE FIRST INCIDENT TO GIVE ME BACK THE MONEY FOR THE CAR. THEY CALLED ME TODAY AND SAID I DIDN'T HAVE A CASE BECAUSE THE WARRANTY WAS OUT I REMINDED THEM I HAD BEEN ASKING SINCE BEFORE AT THE FIRST INCIDENT WITH THE SERPENTINE AND BRACKET AND THEY SAID SORRY THE WARRANTY IS OUT. I REMINDED THEM I HAVE PICTURES OF THOSE PARTS AND CAN PROVE IT BUT THAT STILL WASN'T GOOD ENOUGH! I SPOKE TO HANNAH A DISTRICT SPECIALIST TODAY AND THAT IS WHO LIED TO HERSELF AND SAID THESE OCCURRENCES WERE AFTER THE WARRANTY. I HAVE PROOF CAN YOU PLEASE HELP BEFORE MY FAMILY DIES AND THEN WE HAVE DEPENDENTS WHO WILL OWN THE VERY COMPANY THE GOV'T IS TRYING TO BAIL OUT. I NEED YOU TO INTERVENE BEFORE I GO TO COURT OVER THIS. *TR
NHTSA ODI #10262862
126,000 miles · Mar 23, 2009
Engine And Engine Cooling
I OWN A 2005 CHEVY AVEO. HAVE OWNED SINCE 7-15-05. NO PROBLEMS EXCEPT FOR HEAD GASKET REPLACED WHILE STILL UNDER WARRANTY. ON 3/23/09, I WAS ON THE WAY TO WORK & WENT TO PASS A CAR. AS I PULLED BACK IN TO THE LANE & TOOK MY FOOT OFF THE GAS THE CARS SPEED STILL INCREASED. APPLIED BRAKES AND COULD STILL FEEL THE ENGINE PULLIN…
Read full complaint
I OWN A 2005 CHEVY AVEO. HAVE OWNED SINCE 7-15-05. NO PROBLEMS EXCEPT FOR HEAD GASKET REPLACED WHILE STILL UNDER WARRANTY. ON 3/23/09, I WAS ON THE WAY TO WORK & WENT TO PASS A CAR. AS I PULLED BACK IN TO THE LANE & TOOK MY FOOT OFF THE GAS THE CARS SPEED STILL INCREASED. APPLIED BRAKES AND COULD STILL FEEL THE ENGINE PULLING AS IF I WERE STILL PRESSING THE GAS PEDAL. SLID IN TO NEUTRAL AND THE RPMS RACED TO 7. I FLIPPED BACK IN TO DRIVE & THE CAR KEPT SPEEDING UP. PUT BACK IN TO NEUTRAL & HIT THE GAS A COUPLE OF TIMES TO TRY & KICK IT DOWN & IT FINALLY WENT AFTER THE 3RD TIME FLIPPING IT BACK & FORTH BETWEEN NEUTRAL & DRIVE. SIDE NOTE: CAR WAS SITTING OUT ALL NIGHT IN WITH TEMP DROPPING TO TEENS WITH WINDCHILL. THIS IS THE SECOND INCIDENT. HOWEVER, THE FIRST TIME IT WAS NOT THIS EXTREME. I WAS AT APPROX 80-85 MPH BEFORE IT KICKED BACK DOWN THIS TIME. *TR
NHTSA ODI #10262822
55,600 miles · Jan 4, 2009
Engine And Engine Cooling
MY DAUGHTER WAS DRIVING OUR 2005 CHEVY AVEO WHEN SHE NOTICED SMOKE COMING FROM UNDER THE HOOD, SHE CONTACTED ME AND I CAME AND SAW ANTI-FREEZE ALL OVER ENGINE COMPARTMENT, IT IS WHEN I NOTICED THE THERMOSTAT HOUSING SPLIT AT SEAM. WE GOT THE CAR HOME USING 3.5 GALLONS OF ANTI-FREEZE AND SEVERAL STOPS TO LET ENGINE COOL. I HAVE R…
Read full complaint
MY DAUGHTER WAS DRIVING OUR 2005 CHEVY AVEO WHEN SHE NOTICED SMOKE COMING FROM UNDER THE HOOD, SHE CONTACTED ME AND I CAME AND SAW ANTI-FREEZE ALL OVER ENGINE COMPARTMENT, IT IS WHEN I NOTICED THE THERMOSTAT HOUSING SPLIT AT SEAM. WE GOT THE CAR HOME USING 3.5 GALLONS OF ANTI-FREEZE AND SEVERAL STOPS TO LET ENGINE COOL. I HAVE READ HUNDREDS OF POSTINGS ON DIFFERENT WEBSITES WITH PEOPLE HAVING THE SAME PROBLEM. THIS PART IS TWO PLASTIC PARTS SEALED TOGETHER WITH THE THERMOSTAT BETWEEN THEM. I HAVE NOTICED THAT CHEVY KNEW OF THIS PROBLEM HAPPENING FROM 30K-50K MILEAGE ON THE VEHICLES AND THE NEW REPLACEMENT PART IS NOW METAL. ONCE I GET THE PART AND INSTALL IT I WILL HAVE TO PAY TO HAVE THE ENGINE CHECKED SINCE MOST OF THE COMPLAINTS ALSO MENTION THE HEAD WARPING DUE TO THE HEAT CAUSED BY THE THERMOSTAT HOUSING BREAKING. *TR
NHTSA ODI #10253712
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.
Illustration