NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
22 reportsClear category filter217,800 miles · Jul 22, 2010
Electrical SystemFire
WE WERE TRAVELING SOUTH ON I-5 WHEN WE STOPPED IN MEDFORD, OREGON TO FILL UP OUR 2001 CHEV. DURAMAX PICKUP WITH DIESEL. AFTER FILLING UP, WE NOTICED SMOKE AND A BURNT SMELL COMING OUT FROM UNDER THE HOOD. WE OPENED TO HOOD TO FIND WIRES SMOLDERING. WE IMMEDIATELY MOVED THE PICKUP AWAY FROM THE FUEL TANKS AT THE GAS STATION AN…
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WE WERE TRAVELING SOUTH ON I-5 WHEN WE STOPPED IN MEDFORD, OREGON TO FILL UP OUR 2001 CHEV. DURAMAX PICKUP WITH DIESEL. AFTER FILLING UP, WE NOTICED SMOKE AND A BURNT SMELL COMING OUT FROM UNDER THE HOOD. WE OPENED TO HOOD TO FIND WIRES SMOLDERING. WE IMMEDIATELY MOVED THE PICKUP AWAY FROM THE FUEL TANKS AT THE GAS STATION AND RE-OPENED THE HOOD. MY HUSBAND REMOVED THE PLASTIC SHROUD CONTAINING WHAT LOOKED TO BE ENCLOSED WIRES WHICH WERE SMOLDERING. I GOT THE FIRE EXTINGUISHER FROM THE GAS STATION ATTENDANT. AS MY HUSBAND WAS TRYING THE SEPARATE THE WIRES THAT WERE SMOLDERING WHICH WERE ALSO BURNING HIS FINGERS, FLAMES ERUPTED. WE USED THE FIRE EXTINGUISHER TO EXTINGUISH THE FLAMES. WE TOOK THE PICKUP TO THE DEALER IN JUNCTION CITY, OREGON (GUARANTY). THEY DIAGNOSED THE PROBLEM AS THE GLOW PLUG/INTAKE HEATER RELAY ASSEMBLY FAILURE WHICH CAUSED THE FIRE. IT WAS REPLACED WITH A NEW ONE. WE WERE EXTREMELY LUCKY THAT WE MOVED THE PICKUP AWAY FROM THE FUEL TANKS AT THE GAS STATION AND HAD A FIRE EXTINGUISHER FROM THE GAS STATION ATTENDANT HANDY AT THAT TIME. THERE WAS ALSO A TANKER TRUCK NEXT TO US FILLING UP THE UNDERGROUND GAS TANKS WHEN THE WIRES BURST INTO FLAMES. MANY LIVES COULD HAVE BEEN LOST BECAUSE OF THIS INCIDENT. WE WERE VERY LUCKY. IN MY OPINION, IF A PART FAILS ON A VEHICLE (WHICH I KNOW THEY DO), IT SHOULD NOT HAVE TO CATCH FIRE IN ORDER TO GET MY ATTENTION. *TR
NHTSA ODI #10344748
62,000 miles · Dec 16, 2009
Electrical System
PULLING AWAY FROM A STOP LIGHT, THE MOTOR AND ELECTRICAL SYSTEM SHUT DOWN. I COASTED OVER TO THE SIDE OF THE ROAD -- CONSTITUTING A TRAFFIC HAZARD TO OTHER MOTORISTS- AND RE-STARTED THE VEHICLE. THERE WERE NO OTHER INCIDENTS THAT DAY. MY SON AND DAUGHTER IN LAW REPORT SIMILAR EXPERIENCES ON SEPARATE OCCASIONS. *TR
NHTSA ODI #10296051
80,000 miles · Sep 3, 2008
Electrical System
I HAVE A 2001 2500 HD CHEVROLET WITH THE 8.1 LITER ENGINE. THE VEHICLE WILL STALL IN TRAFFIC AND WILL NOT START AGAIN. THE TRUCK WILL RUN ROUGH SOMETIMES WILL START AFTER A COOL DOWN PERIOD. THIS IS A VERY DANGEROUS SITUATION WITH IT STALLING IN TRAFFIC. THIS IS THE CRANKSHAFT SENSOR WHICH IS COVERED FOR SAME PICKUP WITH SAM…
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I HAVE A 2001 2500 HD CHEVROLET WITH THE 8.1 LITER ENGINE. THE VEHICLE WILL STALL IN TRAFFIC AND WILL NOT START AGAIN. THE TRUCK WILL RUN ROUGH SOMETIMES WILL START AFTER A COOL DOWN PERIOD. THIS IS A VERY DANGEROUS SITUATION WITH IT STALLING IN TRAFFIC. THIS IS THE CRANKSHAFT SENSOR WHICH IS COVERED FOR SAME PICKUP WITH SAME ENGINE OUT OF A DIFFERENT PLANT. THEY SAY EVEN THOUGH IT IS THE SAME FAULTY PART MY PICKUP IS NOT COVERED BECAUSE IT IS FROM A DIFFERENT PLANT. THIS ALMOST CAUSED A ACCIDENT WHILE I WAS DRIVING AS IT STALLED AS I WAS MAKING A TURN. *TR
NHTSA ODI #10240799
58,000 miles · Sep 2, 2008
Electrical System
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 2500 HD. WHILE PASSING TWO TRACTOR TRAILERS AT 55 MPH, THE VEHICLE SHUT OFF. THE CONTACT WAS ABLE TO SLOW THE VEHICLE DOWN AND MANEUVER TO THE SHOULDER. HE WAITED UNTIL THE VEHICLE RESTARTED. THE DEALER STATED THAT THE IGNITION SENSOR WAS FAULTY AND A HOLE WOULD NEED TO BE CUT I…
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 2500 HD. WHILE PASSING TWO TRACTOR TRAILERS AT 55 MPH, THE VEHICLE SHUT OFF. THE CONTACT WAS ABLE TO SLOW THE VEHICLE DOWN AND MANEUVER TO THE SHOULDER. HE WAITED UNTIL THE VEHICLE RESTARTED. THE DEALER STATED THAT THE IGNITION SENSOR WAS FAULTY AND A HOLE WOULD NEED TO BE CUT IN THE FLOORBOARD TO MAKE THE NECESSARY REPAIRS. THE CONTACT REFUSED TO SUSTAIN MORE DAMAGE TO THE VEHICLE. THE FAILURE MILEAGE WAS 58,000 AND CURRENT MILEAGE WAS 70,000.
NHTSA ODI #10240610
78,500 miles · Mar 20, 2008
Electrical System
INSTRUMENT CLUSTER INOPERATIVE. VOLTS GAUGE WOULD READ LOW. I HAD IT CHECKED OUT AND THE BATTERY WAS PROVIDING THE PROPER 13.8 VOLTS. *TR
NHTSA ODI #10221865
Mileage unknown · Feb 19, 2008
Electrical SystemFuel System, Gasoline
THE FUEL GAUGE WILL SHOW EMPTY EVEN IF THE TANK IS FULL. IT WILL GO FROM BELOW EMPTY AND THE LOW FUEL LIGHT WILL COME ON AND THEN IF YOU ROCK THE VEHICLE BACK AND FORTH IT WILL READ THE PROPER AMOUNT. *TR
NHTSA ODI #10218489
65,000 miles · Sep 18, 2006
Electrical SystemEngine And Engine Cooling
NHTSA ACTION NUMBER PE06016 2001 CHEVY 2500 HD 4X4 WITH 8.1 L; STALLING AT HIGHWAY SPEEDS, LOSS OF POWER STEERING AND BRAKES. BATTERY/SECURITY LIGHT COMES ON WHEN VEHICLE STALLS; VEHICLE MAY OR MAY NOT START FOR ABOUT 10-30 MIN AFTER STALL; CRANKING BUT NOT STARTING. ADDITIONAL, AFTER VEHICLE IS PARKED IT WILL CRANK BUT N…
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NHTSA ACTION NUMBER PE06016 2001 CHEVY 2500 HD 4X4 WITH 8.1 L; STALLING AT HIGHWAY SPEEDS, LOSS OF POWER STEERING AND BRAKES. BATTERY/SECURITY LIGHT COMES ON WHEN VEHICLE STALLS; VEHICLE MAY OR MAY NOT START FOR ABOUT 10-30 MIN AFTER STALL; CRANKING BUT NOT STARTING. ADDITIONAL, AFTER VEHICLE IS PARKED IT WILL CRANK BUT NOT START. REPLACED FUEL FILTER, CAP AND ROTOR, WIRES & PLUGS; HAD INJECTORS CLEANED AND THE PROBLEM HAS NOT BEEN FIXED. *NM
NHTSA ODI #10168486
62,000 miles · Sep 5, 2006
Electrical SystemEngine And Engine Cooling
I OWN A CHEVROLET 2500HD EQUIPPED WITH A 8.1 LITER ENGINE AND ALLISON TRANSMISSION. MY PROBLEM BEGAN WITH THE ENGINE REFUSING TO START AFTER BEING DRIVEN A SHORT WHILE. THIS PROBLEM DID NOT OCCUR EVERY TIME BUT WAS FREQUENT ENOUGH TO BE OF CONCERN. AFTER SEVERAL ATTEMPTS LASTING SOME 2 TO THREE MINUTES THE ENGINE WOULD START.…
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I OWN A CHEVROLET 2500HD EQUIPPED WITH A 8.1 LITER ENGINE AND ALLISON TRANSMISSION. MY PROBLEM BEGAN WITH THE ENGINE REFUSING TO START AFTER BEING DRIVEN A SHORT WHILE. THIS PROBLEM DID NOT OCCUR EVERY TIME BUT WAS FREQUENT ENOUGH TO BE OF CONCERN. AFTER SEVERAL ATTEMPTS LASTING SOME 2 TO THREE MINUTES THE ENGINE WOULD START. THE PROBLEM ESCALATED TO THE ENGINE STALLING WHILE DRIVING ON THE HIGHWAY, SOMETIMES ON THE INTERSTATE AT SPEEDS UP TO 70 MPH. DURING THESE STALLS THE ENGINE WOULD SOMETIME RESTART ON ITS OWN WITHOUT TURNING THE KEY OR SHIFTING OUT OF GEAR. DURING TIMES OF STALLING THE ONLY WAY TO MAINTAIN SOME CONTROL OF THE VEHICLE IS TO SHIFT INTO NEUTRAL AND TURN THE KEY TO ATTEMPT A RESTART. AT THESE TIMES THE ENGINE TURNING OVER PROVIDES ENOUGH COMPRESSION TO ALLOW THE POWER STEERING AND BRAKES TO BE AFFECTIVE AS LONG AS THE STARTER IS ENGAGED. *JB
NHTSA ODI #10167340
75,000 miles · Apr 25, 2006
Electrical SystemEngine And Engine CoolingEquipment
DT*: THE CONTACT STATED WHILE APPROACHING A STOP, DRIVING 5 MPH AND APPLYING THE BRAKES, THE ANTI- LOCK BRAKE SYSTEM ACTIVATED. THIS CAUSED AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS TAKEN TO A DEALER. UPON INSPECTION THE SPEED SENSOR HUB WAS CORRODED DUE TO ROAD SALT AND WAS REPLACED. THERE IS A NHTSA RECALL, # 05V3790…
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DT*: THE CONTACT STATED WHILE APPROACHING A STOP, DRIVING 5 MPH AND APPLYING THE BRAKES, THE ANTI- LOCK BRAKE SYSTEM ACTIVATED. THIS CAUSED AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS TAKEN TO A DEALER. UPON INSPECTION THE SPEED SENSOR HUB WAS CORRODED DUE TO ROAD SALT AND WAS REPLACED. THERE IS A NHTSA RECALL, # 05V379000, REGARDING THE SERVICE BRAKES, ANTI-LOCK. THE CONSUMERS VEHICLE IDENTIFICATION NUMBER WAS NOT INCLUDED IN THE RECALL. THE ALTERNATOR FAILED. THE ROTORS AND BRAKES HAD TO BE REPLACED DUE TO THE ROTORS RUSTING FROM THE INSIDE. THE ROTORS COULD NOT BE TURNED BECAUSE THEY WERE HEAVILY RUSTED. THE LEFT POWER WINDOW FAILED, THE MANUFACTURER USED A STEEL CABLE FOR THE ASSEMBLY, WHICH ALLOWED WATER TO SEEP IN WHICH CAUSED CORROSION. THE LEFT REAR OUTSIDE AXLE WAS LEAKING. THE A/C IDLER PULLEY AND TENSIONER WAS MAKING A LOUD NOISE. THE RIGHT POWER WINDOW FAILED. THE TIRES WERE CRACKING ALONG THE EDGES CLOSE TO THE RIM. GREASE LEAKED OUT FROM THE CV JOINT. THE REAR OIL SEAL WAS LEAKING. THE RIMS WERE DELAMINATING. THE CD WOULD NOT EJECT FROM THE PLAYER. THE IGNITION SWITCH WAS REPLACED, THE PASSENGER WINDSHIELD WIPER WAS LOOSE, THE MULTI-FUNCTION SWITCH WAS REPLACED. THE ACCELERATOR WOULD STICK SOMETIMES AND THE DRIVER SIDE MIRROR WAS BROKEN. UPDATED 07/10/06. *JB
NHTSA ODI #10156085
50,000 miles · Dec 1, 2005
Electrical SystemVisibility
DT: THE CONTACT NOTICED AN ONGOING CONSUMPTION OF WINDSHIELD WASHER FLUID. UPON FURTHER INVESTIGATION HE DISCOVERED THE WINDSHIELD WASHER HOSE CRACKED AND WAS LEAKING FLUID ONTO HIS BATTERY. HE TOOK THE VEHICLE TO A DEALER, WHO REPLACED THE BATTERY, WINDSHIELD WASHER HOSE, AND MOTOR. THE REPAIRS WERE NOT COVERED BY WARRANTY …
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DT: THE CONTACT NOTICED AN ONGOING CONSUMPTION OF WINDSHIELD WASHER FLUID. UPON FURTHER INVESTIGATION HE DISCOVERED THE WINDSHIELD WASHER HOSE CRACKED AND WAS LEAKING FLUID ONTO HIS BATTERY. HE TOOK THE VEHICLE TO A DEALER, WHO REPLACED THE BATTERY, WINDSHIELD WASHER HOSE, AND MOTOR. THE REPAIRS WERE NOT COVERED BY WARRANTY AND WAS MADE AT THE CONTACT'S EXPENSE. *AK
NHTSA ODI #10144115
NHTSA investigations
3EA06016 · Crank Position Sensor Failure - Stall
Opened Sep 14, 2006 · Closed Nov 9, 2007
Status: closed (inferred from source dates) · Engine And Engine Cooling; Engine And Engine Cooling:engine
IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.
Additional source detail variants (2)
Engine And Engine Cooling:engine
IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.
Engine And Engine Cooling
IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.
EA04012 · Hydraulic Pump Failres
Opened Apr 30, 2004 · Closed Feb 28, 2005
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist; Steering:hydraulic Power Assist System
GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.
Additional source detail variants (2)
Service Brakes, Hydraulic:power Assist
GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.
Steering:hydraulic Power Assist System
GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.
PE04004 · Hydraulic Pump Shaft Failures
Opened Jan 8, 2004 · Closed Apr 30, 2004
Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:power Assist; Service Brakes, Hydraulic:power Assist:hydraulic; Steering:hydraulic Power Assist System; Steering:hydraulic Power Assist:pump
THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.
Additional source detail variants (5)
Service Brakes, Hydraulic
THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.
Service Brakes, Hydraulic:power Assist
THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.
Service Brakes, Hydraulic:power Assist:hydraulic
THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.
Steering:hydraulic Power Assist:pump
THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.
Steering:hydraulic Power Assist System
THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.
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