NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
300 reports217,800 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
56,000 miles · Jul 20, 2010
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 2500 HD. WHILE DRIVING 65 MPH, THE VEHICLE STALLED AND THE BATTERY WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT AFTER 10 TO 15 SECONDS THE VEHICLE WOULD START AND PERFORM AS IF THE FAILURE NEVER OCCURRED. THE VEHICLE ALSO STALLED AT A COMPLETE STOP AND …
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TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 2500 HD. WHILE DRIVING 65 MPH, THE VEHICLE STALLED AND THE BATTERY WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT AFTER 10 TO 15 SECONDS THE VEHICLE WOULD START AND PERFORM AS IF THE FAILURE NEVER OCCURRED. THE VEHICLE ALSO STALLED AT A COMPLETE STOP AND AT TIMES THE VEHICLE FAILED TO RESTART. THE DEALER WAS CONTACTED AND STATED THAT HIS VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 07V521000, ENGINE AND ENGINE COOLING. THE FAILURE WAS DIAGNOSED BY A MECHANIC STATING THAT IT WAS THE CRANKSHAFT POSITION SENSOR THAT WAS FAULTY. NO REPAIRS WERE MADE WHEN THE COMPLAINT WAS FILED. THE FAILURE MILEAGE WAS 56000 AND THE CURRENT MILEAGE WAS 61900.
NHTSA ODI #10344210
72,148 miles · Jun 29, 2010
Service Brakes, Hydraulic
I HAVE JUST EXPERIENCED MY SECOND BRAKE FAILURE DUE TO CORRODED/ RUSTED BRAKE LINES IN MY 2001 CHEVY 2500HD. BOTH INCIDENTS INVOLVED NORMAL BRAKING SITUATIONS APPROACHING INTERSECTIONS. PERSONAL INSPECTION OF BRAKE LINES SHOWS A LEAK THIS TIME ABOVE THE GAS TANK THE REMAINDER OF THE LINES IN THE VEHICLE SHOW SIGNIFICANT AMOUNT O…
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I HAVE JUST EXPERIENCED MY SECOND BRAKE FAILURE DUE TO CORRODED/ RUSTED BRAKE LINES IN MY 2001 CHEVY 2500HD. BOTH INCIDENTS INVOLVED NORMAL BRAKING SITUATIONS APPROACHING INTERSECTIONS. PERSONAL INSPECTION OF BRAKE LINES SHOWS A LEAK THIS TIME ABOVE THE GAS TANK THE REMAINDER OF THE LINES IN THE VEHICLE SHOW SIGNIFICANT AMOUNT OF RUST. *TR
NHTSA ODI #10340708
80,000 miles · Jun 21, 2010
Service Brakes, Hydraulic
BRAKES WENT ALL THE WAY TO THE FLOOR. FOUND OUT THAT BRAKE LINE FROM MASTER CYLINDER TO PROPORTIONAL VALVE HAD RUSTED AND A HOLE HAD FORMED ALLOWING BRAKE FLUID TO LEAK OUT. SECOND BRAKE LINE RUSTED BUT INTACT. AM CURRENTLY LOOKING TO HAVE BRAKE LINES REPLACED. *TR
NHTSA ODI #10339282
99,000 miles · Jun 9, 2010
Service Brakes, ElectricStructure
I WAS TRAVELING AT 40MPH AND ANOTHER VEHICLE PULLED OUT IN FRONT OF ME, I SLAMMED ON THE BRAKES AND AVOIDED AN ACCIDENT. I WENT TO USE MY BRAKES A FEW HUNDRED FEET DOWN THE ROAD AND THE PEDAL WENT TO THE FLOOR. UPON INSPECTION AFTER I GOT HOME A BRAKE LINE HAD BLOWN OUT, AFTER FURTHER INVESTIGATION I NOTICED THAT ALL OF MY BRAKE…
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I WAS TRAVELING AT 40MPH AND ANOTHER VEHICLE PULLED OUT IN FRONT OF ME, I SLAMMED ON THE BRAKES AND AVOIDED AN ACCIDENT. I WENT TO USE MY BRAKES A FEW HUNDRED FEET DOWN THE ROAD AND THE PEDAL WENT TO THE FLOOR. UPON INSPECTION AFTER I GOT HOME A BRAKE LINE HAD BLOWN OUT, AFTER FURTHER INVESTIGATION I NOTICED THAT ALL OF MY BRAKE LINE ARE RUSTED VERY BAD TO THE POINT OF ALL OF THEM NEEDING TO BE REPLACES ASAP. THIS VEHICLE IS ONLY 9 YEARS OLD, I HAVE A CAR THAT WAS BUILT IN 1980 AND THE BRAKE LINES LOOK MUCH BETTER. THE FRAME OF THE TRUCK LOOKS PRETTY RUSTED AS WELL I THINK THERE IS A SERIOUS PROBLEM WITH THE BRAKE LINES OF CHEVY TRUCKS IN THE EARLY 2000 YEARS. *TR
NHTSA ODI #10335494
75,000 miles · Jun 5, 2010
Service Brakes, Hydraulic
DRIVING WHEN A DEER CROSSED IN FRONT OF MY VEHICLE. BRAKE HARD AND BRAKES WENT TO THE FLOOR. FOUND THE BRAKE LINES UNDER THE DRIVER SIDE RUSTED OUT. REQUIRES REPLACING ALL BRAKE LINES IN THE VEHICLE. SEVERE RUST ON ALL LINES. *TR
NHTSA ODI #10334736
38,000 miles · May 27, 2010
Service Brakes, Hydraulic
REAR DISC BRAKE ROTORS ON 2001 CHEVROLET SILVERADO 2500 HD ARE RUSTING TO THE POINT WHERE THEY WILL HAVE TO BE REPLACED FOR A SECOND TIME AT 68,000 MILES. THE FIRST OCCURRENCE WAS 7/28/2005 AT 38,000 MILES, NOW AT 68,000 MILES, THE VEHICLE BRAKING PERFORMANCE HAS SEVERELY DEGRADED TO THE POINT WHERE IT FEELS LIKE IT'S BRAKING…
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REAR DISC BRAKE ROTORS ON 2001 CHEVROLET SILVERADO 2500 HD ARE RUSTING TO THE POINT WHERE THEY WILL HAVE TO BE REPLACED FOR A SECOND TIME AT 68,000 MILES. THE FIRST OCCURRENCE WAS 7/28/2005 AT 38,000 MILES, NOW AT 68,000 MILES, THE VEHICLE BRAKING PERFORMANCE HAS SEVERELY DEGRADED TO THE POINT WHERE IT FEELS LIKE IT'S BRAKING ONLY WITH THE FRONT DISC BRAKES. I WAS TOLD BY THE SERVICE PERSONAL THAT THE REAR ROTORS AND PADS WILL NEED TO BE REPLACED, NOT BECAUSE OF WEAR, BUT BECAUSE OF RUST. *TR
NHTSA ODI #10332590
64,087 miles · May 27, 2010
Service Brakes, Hydraulic
BRAKE LINE FAILURE DUE TO RUST THROUGH ON 2001 CHEVY SILVERADO 2500HD LED TO LOSS OF BRAKING AND NEARLY AN ACCIDENT. THE RESULTING LOSS OF THE VEHICLE FOR SEVERAL DAYS WHILE THE BRAKE LINES HAD TO BE COMPLETELY REPLACED AT A COST OF APPROXIMATELY $2000. *TR
NHTSA ODI #10332588
130,000 miles · May 10, 2010
Service Brakes, HydraulicCrash
TL* THE CONTACT OWNED A 2001 CHEVROLET SILVERADO 2500 HD PICKUP. THE CONTACT STATED WHILE BRAKING FROM SPEEDS OF 5 MPH, A VEHICLE CRASHED INTO THE REAR OF HIS VEHICLE, CAUSING HIS VEHICLE TO CRASH INTO THE VEHICLE AHEAD OF HIM. THE BRAKE PEDAL WAS DEPRESSED BUT DID NOT ENGAGE AND THE FRONT AND REAR OF HIS VEHICLE SUSTAINED SUBS…
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TL* THE CONTACT OWNED A 2001 CHEVROLET SILVERADO 2500 HD PICKUP. THE CONTACT STATED WHILE BRAKING FROM SPEEDS OF 5 MPH, A VEHICLE CRASHED INTO THE REAR OF HIS VEHICLE, CAUSING HIS VEHICLE TO CRASH INTO THE VEHICLE AHEAD OF HIM. THE BRAKE PEDAL WAS DEPRESSED BUT DID NOT ENGAGE AND THE FRONT AND REAR OF HIS VEHICLE SUSTAINED SUBSTANTIAL BODY DAMAGE. THE DEALER WOULD NOT PROVIDE ANY ASSISTANCE. THE FAILURE MILEAGE WAS 130,000 AND THE CURRENT MILEAGE WAS 134,000.
NHTSA ODI #10329539
92,000 miles · Apr 27, 2010
Engine And Engine Cooling
THE CONTACT OWNS A 2001 CHEVROLET 2500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40MPH THE VEHICLE STALLED. THE FAILURE HAS OCCURRED APPROXIMATELY 15 TIMES. NO LIGHTS WERE ILLUMINATED DURING ANY OF THE FAILURES. THE VEHICLE WILL START WHEN PUT IN PARK AND RESTARTED. THE VEHICLE WAS TAKEN TO A GM DEALER AND WAS IN…
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THE CONTACT OWNS A 2001 CHEVROLET 2500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40MPH THE VEHICLE STALLED. THE FAILURE HAS OCCURRED APPROXIMATELY 15 TIMES. NO LIGHTS WERE ILLUMINATED DURING ANY OF THE FAILURES. THE VEHICLE WILL START WHEN PUT IN PARK AND RESTARTED. THE VEHICLE WAS TAKEN TO A GM DEALER AND WAS INFORMED THAT A RECALL WAS IN EFFECT, NHTSA CAMPAIGN ID NUMBER 07V521000, BUT THE OWNERS VIN IS NOT INCLUDED. THE VEHICLE HAS BEEN REPAIRED AT THE OWNERS EXPENSE. THE FAILURE MILEAGE WAS APPROXIMATELY 92,000. THE CURRENT MILEAGE IS 95,500. RD
NHTSA ODI #10327768
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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