NHTSA owner reports · September 18, 2026 snapshot.
Steering complaints
11 reportsClear category filter155,342 miles · Feb 15, 2013
SteeringCrashInjury
TL* THE CONTACT OWNS A 2001 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE SUDDENLY JERKED TO THE LEFT THEN SPUN AROUND 180 DEGREES BEFORE CRASHING INTO A MEDIAN. THE CONTACT SUSTAINED A DISLOCATED HIP. THE VEHICLE WAS PERSONALLY INSPECTED BY THE CONTACT, WHO DETERMINED THAT THE DRIVER'S SIDE FRONT…
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TL* THE CONTACT OWNS A 2001 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE SUDDENLY JERKED TO THE LEFT THEN SPUN AROUND 180 DEGREES BEFORE CRASHING INTO A MEDIAN. THE CONTACT SUSTAINED A DISLOCATED HIP. THE VEHICLE WAS PERSONALLY INSPECTED BY THE CONTACT, WHO DETERMINED THAT THE DRIVER'S SIDE FRONT TIE ROD HAD FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 159,350.
NHTSA ODI #10498302
120,000 miles · Feb 15, 2013
SteeringCrashInjury
WAS TRAVELING EAST ON RT 460 NEAR GLEN LYN VIRGINIA 4:30 AM IN THE EARLY MORNING TRUCK SWERVED AND I TRIED TO CONTROL IT DID A 360 OR MORE RAN BACKWARDS UP ON A BANK ON WET ROADS TURNED BACK AROUND CAME OFF BANK AND WENT BACK INTO THE EMBANKMENT WHERE IT MADE CONTACT WITH CONCRETE THROWN BACK OUT INTO HIGHWAY ENGINE WAS STALLE…
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WAS TRAVELING EAST ON RT 460 NEAR GLEN LYN VIRGINIA 4:30 AM IN THE EARLY MORNING TRUCK SWERVED AND I TRIED TO CONTROL IT DID A 360 OR MORE RAN BACKWARDS UP ON A BANK ON WET ROADS TURNED BACK AROUND CAME OFF BANK AND WENT BACK INTO THE EMBANKMENT WHERE IT MADE CONTACT WITH CONCRETE THROWN BACK OUT INTO HIGHWAY ENGINE WAS STALLED THE LEFT FRONT TIEROD BROKE IT IS APPROXIMATELY 1/2 INCH OR LESS IN DIAMETER WAY TOO SMALL FOR A HEAVY DUTY DIESEL TRUCK ITS SMALLER THAN MOST CAR TIEROD END I WAS AT COVINGTON COLLISION AND WAS ADVISED OF AT LEAST THREE MORE OF THESE TIEROD ENDS BREAKING INCIDENTS THESE TRUCKS NEED RECALLED NOW AND UP SIZED BAD I HAVE NEVER IN MY LIFE AS A MECHANIC SEEN A TIE ROD END BREAK EXCEPT THAT THE SOCKETS WERE SO WORN OUT IT WASN'T FUNNY BUT THEN YOU TURN YOUR WHEEL SO FAR BEFORE YOU TURN YOUR WHEELS THIS THING JUST BROKE OUT OF NOWHERE DIDN'T MATTER WHO WAS DRIVING THIS WAS GOING TO HAPPEN I CAN NOT BELIEVE SOMEONE HASN'T DID SOMETHING ABOUT THIS BEFORE NOW THEY NEED RECALLED NOW THEY BREAK UNDER THE GREECE BOOT JUST IN FRONT OF JOINT CANNOT DETECT WHEN ONE IS READY TO BREAK WITHOUT DISASSEMBLING IT. THANK YOU *TR
NHTSA ODI #10498301
181,000 miles · Apr 12, 2012
Service Brakes, HydraulicSteeringStructureCrash
FIRST POWER STEERING AND HYDROBOOST LINES RUSTS THROUGH. BRAKE LINES RUPTURES IN CRASH DUE TO ACCIDENT. GM NEEDS TO RECALL THEIR TRUCKS AND FIX THE PROBLEM OF THERE FAULTY RUSTLY BRAKE AND POWER STEERING SYSTEM LINES. *TR
NHTSA ODI #10454973
61,210 miles · Sep 5, 2004
Service Brakes, HydraulicSteering
I WAS DRIVING MY 2001 GMC HD PICKUP WHEN I LOST POWER STEERING AND POWER BRAKES AT THE SAME TIME DUE TO A SHAFT IN THE POWER STEERING PUMP BREAKING. THE POWER STEERING AND BRAKES ARE BOTH DRIVEN BY THE SAME PUMP. THE REPAIR SHOP INDICATED THIS WAS NOT THE FIRST TIME THEY HAVE SEEN THIS PROBLEM AND THE SHAFT WAS A "POOR" DESIGN…
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I WAS DRIVING MY 2001 GMC HD PICKUP WHEN I LOST POWER STEERING AND POWER BRAKES AT THE SAME TIME DUE TO A SHAFT IN THE POWER STEERING PUMP BREAKING. THE POWER STEERING AND BRAKES ARE BOTH DRIVEN BY THE SAME PUMP. THE REPAIR SHOP INDICATED THIS WAS NOT THE FIRST TIME THEY HAVE SEEN THIS PROBLEM AND THE SHAFT WAS A "POOR" DESIGN BECAUSE IT NARROWS AT ONE END WHICH IS WHERE THEY HAVE SEEN THEM BREAK IN SIMILAR VEHICLES. *JB
NHTSA ODI #10090477
30,320 miles · Jul 9, 2004
Steering
POWER STEERING PUMP FAILED , LOST COMPLETE CONTROL OF STEERING AND BRAKING, DEALER INSTALLED NEW PUMP, SAID SHAFT WAS BROKEN. *AK
NHTSA ODI #10080725
25,000 miles · Mar 16, 2004
Service Brakes, AirSteering
2001 GMC HD2500 PICKUP, LOSS OF POWER STEERING AND POWER BRAKES. *JB
NHTSA ODI #10062357
28,999 miles · Feb 27, 2004
Steering
WHEN YOU START THE MOTOR AT ANY TIME YOU HERE KNOCKING NOISES COMING FROM THE MOTOR.WHEN YOU START TO SLOW DOWN THERE IS A RUBBING OR BUMPING NOISE COMING FROM THE DRIVERS SIDE. IT SEEMS TO BE COMING UP THROUGH THE BRAKE PEDAL. ALSO BRAKE PEDAL IS LOOSE WITH NO ADJUSTMENT.*AK
NHTSA ODI #10059095
30,200 miles · Jan 21, 2004
Steering
I OWN A 2001 GMC 2500HD 4WD, AUTOMATIC TRANSMISSION, EXTENDED CAB, SHORTBED, 6.0 LITRE GAS ENGINE. PURCHASED IN OCTOBER 2000. THE TRUCK IS COMPLETELY STOCK EXCEPT FOR AN TIRE UPGRADE TO 285/75 R16. ON DEC 17, 2003, I TOOK A WIDE LEFT TURN ON TO A STREET. AFTER MAKING THE FIRST LEFT, THE STEERING FELT STRANGE. WHILE MAKING THE S…
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I OWN A 2001 GMC 2500HD 4WD, AUTOMATIC TRANSMISSION, EXTENDED CAB, SHORTBED, 6.0 LITRE GAS ENGINE. PURCHASED IN OCTOBER 2000. THE TRUCK IS COMPLETELY STOCK EXCEPT FOR AN TIRE UPGRADE TO 285/75 R16. ON DEC 17, 2003, I TOOK A WIDE LEFT TURN ON TO A STREET. AFTER MAKING THE FIRST LEFT, THE STEERING FELT STRANGE. WHILE MAKING THE SECOND LEFT THE POWER STEERING DISAPPEARED COMPLETELY AND SO DID THE BRAKES. THE VEHICLE WAS NOW HEADING TOO WIDE RIGHT AND I WAS STOMPING ON THE BRAKES TO TRY AND STOP IT. I ALMOST RAN INTO A POST TO THE RIGHT OF THE TURN. LUCKILY THERE WAS NO TRAFFIC AND I WAS ABLE TO BRING THE TRUCK TO A STOP. THE POWER STEERING WAS COMPLETELY GONE AND SO WERE POWER BRAKES. I HAD TO MUSCLE THE 8600 LB. TRUCK BACK AND FINISH THE TURN IN A VERY PHYSICAL MANNER. THIS WAS NO EASY TASK. I DROVE IT A SHORT WAY HOME VERY SLOWLY AND WITH GREAT DIFFICULTY. I DISCOVERED THE POWER STEERING PULLEY SHAFT HAD SHEARED INSIDE THE POWER STEERING PUMP. I REPLACED THE POWER STEERING PUMP.THE DAY AFTER THE SECOND UNIT WAS INSTALLED, THE VERY SAME THING HAPPENED AGAIN. I SNAPPED THE SAME SHAFT ON THE SECOND PUMP. FEARING I HAD JUST RECEIVED A BAD PART, I AGAIN REPLACED THE POWER STEERING PUMP. I SPOKE TO MANY MECHANICS SPECIALIZING IN FRONT END AND STEERING WORK. THEY HAVE ALL CONFIRMED THAT THIS IS THE SAME PUMP THAT HAS BEEN USED IN OLDER GM TRUCK MODELS. THE ONLY DIFFERENCE IS NOW THE PUMP PROVIDES ADDITIONAL WORK TO THE POWER BRAKE ASSIST. THIS IS BEYOND THE ABILITY OF THE OLDER DESIGN PUMP, ORIGINALLY ONLY DESIGNED TO PROVIDE POWER STEERING. THE SITUATION THAT MOST COMMONLY OCCURS WHEN THIS PUMP FAILS IS USUALLY WHEN THE VEHICLE IS IN MOTION AND DURING A TURN. TO LOSE CONTROL OF THESE HEAVY TRUCKS IN THIS INSTANCE IS DANGEROUS AND COULD VERY LIKELY CAUSE AND ACCIDENT. I AM VERY CONCERNED ABOUT THE DESIGN OF THIS CRITICAL COMPONENT AND THE IMMEDIATE LOSS OF VEHICLE CONTROL THAT HAPPENED TO ME. THERE ARE MANY OF THESE TRUCKS OUT THERE THAT HAVE THIS SAME FLAW. *AK
NHTSA ODI #10054560
Mileage unknown · Jul 24, 2003
Service Brakes, HydraulicSteering
VEHICLE LOST POWER STEERING AND POWER BRAKES WHILE DRIVING.*MR DEALER NOTIFIED. *CB
NHTSA ODI #10031965
Mileage unknown · Sep 9, 2002
SteeringSuspensionCrash
OWNER WAS DRIVING WHEN VEHICLE SLIGHTLY WENT OFF THE ROAD. ONCE VEHICLE RESUMED NORMAL OPERATIONS SPINDLE BROKE, CAUSING IT TO LOSE CONTROL AND ROLL OVER FOUR TIMES. PLEASE DESCRIBE DETAILS. *AK
NHTSA ODI #8018206
NHTSA investigations
2EA06016 · 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.
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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