NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
117 reportsClear category filter99,900 miles · Jul 4, 2010
Service Brakes, Hydraulic
WHILE DRIVING MY 2002 CHEVY SILVERADO 2500HD TRUCK AND ATTEMPTING TO STOP, THE BRAKE PEDAL WENT TO THE FLOOR. INSPECTION REVEALED THE BRAKE LINE FROM THE MASTER CYLINDER TO THE PROPORTIONING VALVE UNDER THE CAB OF THE TRUCK HAD BURST DUE TO A VERY RUSTY BRAKE LINE. INSPECTION REVEALED THAT ALL THE BRAKE LINES ARE VERY RUSTY AN…
Read full complaint
WHILE DRIVING MY 2002 CHEVY SILVERADO 2500HD TRUCK AND ATTEMPTING TO STOP, THE BRAKE PEDAL WENT TO THE FLOOR. INSPECTION REVEALED THE BRAKE LINE FROM THE MASTER CYLINDER TO THE PROPORTIONING VALVE UNDER THE CAB OF THE TRUCK HAD BURST DUE TO A VERY RUSTY BRAKE LINE. INSPECTION REVEALED THAT ALL THE BRAKE LINES ARE VERY RUSTY AND NEED TO BE REPLACED. *TR
NHTSA ODI #10341373
80,000 miles · Jun 23, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500. WHILE BRAKING FROM THE SPEEDS OF 8 MPH, THE ANTI LOCK BRAKES ENGAGED AND CAUSED AN UNUSUAL INCREASE IN STOPPING DISTANCE AND TIME. THE CONTACT LOCATED A RECALL FOR THE FAILURE HOWEVER, THE DEALER ADVISED THE RECALL WAS LIMITED TO SPECIFIC STATES ONLY. THE CONTACTS VIN WAS NO…
Read full complaint
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500. WHILE BRAKING FROM THE SPEEDS OF 8 MPH, THE ANTI LOCK BRAKES ENGAGED AND CAUSED AN UNUSUAL INCREASE IN STOPPING DISTANCE AND TIME. THE CONTACT LOCATED A RECALL FOR THE FAILURE HOWEVER, THE DEALER ADVISED THE RECALL WAS LIMITED TO SPECIFIC STATES ONLY. THE CONTACTS VIN WAS NOT INCLUDED IN THE RECALL. A DIAGNOSTIC WAS PERFORMED WHICH DETERMINED THE FAILURE TO BE CAUSED BY THE RIGHT ABS SENSOR. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000 AND THE CURRENT MILEAGE WAS 84,000.
NHTSA ODI #10339770
51,580 miles · Jun 19, 2010
Service Brakes, Hydraulic
2002 CHEVROLET SILVERADO 2500 HD WITHOUT WARNING, EXHIBITS VERY SOFT BRAKE PEDAL ACCOMPANIED BY SENSATION THAT BRAKE PEDAL "GOES TO THE FLOOR," APPARENT ACTIVATION OF ABS, AND DIFFICULTY STOPPING SAFELY. ORIGINAL EQUIPMENT FRONT BRAKE PADS AND ROTORS ARE INSPECTED BY SERVICE FACILITY AND DEEMED ACCEPTABLE FOR CONTINUED USE AT T…
Read full complaint
2002 CHEVROLET SILVERADO 2500 HD WITHOUT WARNING, EXHIBITS VERY SOFT BRAKE PEDAL ACCOMPANIED BY SENSATION THAT BRAKE PEDAL "GOES TO THE FLOOR," APPARENT ACTIVATION OF ABS, AND DIFFICULTY STOPPING SAFELY. ORIGINAL EQUIPMENT FRONT BRAKE PADS AND ROTORS ARE INSPECTED BY SERVICE FACILITY AND DEEMED ACCEPTABLE FOR CONTINUED USE AT THIS TIME. REAR DISK BRAKE PAD AND ROTOR INSPECTED AND DEEMED UNSERVICEABLE DUE TO PREMATURE FAILURE APPARENTLY CAUSED BY EXTENSIVE, PROGRESSIVE UNDERCARRIAGE CORROSION THAT WAS OBSERVABLE FROM DELIVERY DATE OF VEHICLE WHEN PURCHASED NEW. REAR BRAKE PAD INABILITY TO "FLOAT" DUE TO EXTENSIVE CORROSION CAUSED PREMATURE REAR PAD AND REAR ROTOR FAILURE. BRAKE LINES ARE ALSO OBSERVED TO BE CORRODING IN AN EXCESSIVE, PREMATURE MANNER AS ARE VEHICLE FRAME AND TRAILER HITCH STRUCTURAL COMPONENTS. OBSERVATION OF SIMILARLY SITUATED PICK-UP TRUCKS MANUFACTURED BY OTHERS DO NOT DEMONSTRATE CORROSION OF THIS EXCESSIVE MAGNITUDE. *TR
NHTSA ODI #10339120
51,750 miles · May 15, 2010
Service Brakes, Hydraulic
BRAKE LINE FAILURE DUE TO CORROSION WHILE DRIVING MY 2002 CHEVROLET SILVERADO HD2500 PICKUP. BRAKE PEDAL WENT TO THE FLOOR AND COULD NOT STOP, COULD ONLY STOP BY USING THE EMERGENCY BRAKE. SCARY. THE LINE FAILED THAT FOLLOWS THE FRAME JUST IN FRONT OF THE DRIVERS DOOR. *TR
NHTSA ODI #10330567
137,000 miles · May 14, 2010
Service Brakes, Hydraulic
DURING BRAKING MY 2002 CHEVROLET SILVERADO 2500 HD'S ABS IS ACTIVATED WHEN THE VEHICLE IS ALMOST STOPPED. IT HAPPENS INTERMITTENTLY BUT SEEMS TO BE GETTING WORSE. THE FAILURE HAS NOT YET BEEN REPAIRED. I CONFIRMED WITH CHEVY THAT THERE IS NO OPEN RECALL ON THIS VEHICLE BUT THERE SHOULD BE. *TR
NHTSA ODI #10330450
74,856 miles · Apr 20, 2010
Service Brakes, Hydraulic
I WAS USING MY CHEVY SILVERADO TO TOW MY HORSE TRAILER (HORSE ON BOARD) TO A WEEKEND EVENT. BY THE TIME I ARRIVED AT THE CAMP GROUND I REALIZED THAT MY TRUCK'S BRAKES WERE NOT AS FIRM AS THEY SHOULD BE AND THE BRAKE PEDAL WAS GETTING LOWER AND LOWER. I LEFT MY TRAILER AT THE CAMP AND DROVE MY TRUCK TO A NEARBY GARAGE. A MECHANIC…
Read full complaint
I WAS USING MY CHEVY SILVERADO TO TOW MY HORSE TRAILER (HORSE ON BOARD) TO A WEEKEND EVENT. BY THE TIME I ARRIVED AT THE CAMP GROUND I REALIZED THAT MY TRUCK'S BRAKES WERE NOT AS FIRM AS THEY SHOULD BE AND THE BRAKE PEDAL WAS GETTING LOWER AND LOWER. I LEFT MY TRAILER AT THE CAMP AND DROVE MY TRUCK TO A NEARBY GARAGE. A MECHANIC LOCATED A LEAKING BRAKE LINE DIRECTLY BENEATH THE DRIVER'S SIDE DOOR AND NOTED THAT ALL THE VISIBLE BRAKE LINES LOOKED CORRODED. I TOPPED OFF THE BRAKE FLUID AT THE GARAGE AND AFTER MY CAMPING WEEKEND I WAS ABLE TO CAREFULLY DRIVE THE TRUCK AND TRAILER HOME BUT I HAD TO USE THE TRAILER'S BRAKE CONTROLLER TO INCREASE THE TRAILER BRAKING TO ASSIST THE TRUCK BRAKING. DURING THE FOLLOWING WEEK THE TRUCK WAS TAKEN TO A GM DEALERSHIP AND THEY DID A SO CALLED REPAIR BY SPLICING NEW PIECES OF ALUMINUM BRAKE LINE INTO THE CORRODED ORIGINAL LINES. *TR
NHTSA ODI #10326615
56,000 miles · Apr 17, 2010
Service Brakes, HydraulicCrash
I WAS GOING NORTH ON ROUTE 106, LACONIA, NH IN MY 2002 CHEVROLET SILVERADO PICK UP TRUCK. A SCHOOL BUS IN FRONT OF ME WAS ABOUT TO STOP. WHEN I ATTEMPTED TO STOP MY VEHICLE, THE BRAKES FAILED CAUSING MY VEHICLE TO STRIKE THE BACK OF THE BUS. THERE WAS A TRAIL OF BRAKE FLUID IN THE ROAD PRIOR TO THE POINT OF IMPACT. UPON INSPECT…
Read full complaint
I WAS GOING NORTH ON ROUTE 106, LACONIA, NH IN MY 2002 CHEVROLET SILVERADO PICK UP TRUCK. A SCHOOL BUS IN FRONT OF ME WAS ABOUT TO STOP. WHEN I ATTEMPTED TO STOP MY VEHICLE, THE BRAKES FAILED CAUSING MY VEHICLE TO STRIKE THE BACK OF THE BUS. THERE WAS A TRAIL OF BRAKE FLUID IN THE ROAD PRIOR TO THE POINT OF IMPACT. UPON INSPECTION OF MY VEHICLE THE POLICE OFFICER FOUND BRAKE FLUID LEAKING FROM THE AREA OF THE MASTER CYLINDER. MY VEHICLE SUSTAINED EXTENSIVE DAMAGE AND REQUIRED TOWING. THE BUS RECEIVED MINOR SCRATCHES TO THE REAR BUMPER. *TR
NHTSA ODI #10326160
68,000 miles · Apr 16, 2010
Service Brakes, Hydraulic
THE BRAKE LINES ON MY 2002 CHEVY SILVERADO 2500 HD CORRODED AND RUPTURED LEAVING ME WITH NO BRAKES! I WAS ON A CAMPING TRIP IN TENNESSEE AND LUCKILY CAUGHT IT AT THE CAMPGROUNDS. THIS CONDITION COULD HAVE ENDED IN TRAGEDY! I PULL A 33 FOOT FIFTH WHEEL CAMPER AND THE VEHICLE BRAKES ARE A MUST ESPECIALLY GOING DOWN MOUNTAINS! I HA…
Read full complaint
THE BRAKE LINES ON MY 2002 CHEVY SILVERADO 2500 HD CORRODED AND RUPTURED LEAVING ME WITH NO BRAKES! I WAS ON A CAMPING TRIP IN TENNESSEE AND LUCKILY CAUGHT IT AT THE CAMPGROUNDS. THIS CONDITION COULD HAVE ENDED IN TRAGEDY! I PULL A 33 FOOT FIFTH WHEEL CAMPER AND THE VEHICLE BRAKES ARE A MUST ESPECIALLY GOING DOWN MOUNTAINS! I HAD THE DRIVERS SIDE BRAKE LINE REPLACED IMMEDIATELY AT A GOODYEAR SERVICE CENTER AT A COST OF $180.00! *TR
NHTSA ODI #10326027
60,000 miles · Apr 11, 2010
Service Brakes, Hydraulic
CORROSION OF BRAKE LINES ON A 2002 CHEV 2500HD, FAILURE IN WINTER OF 06, LINE REPAIRED. FAILURE IN WINTER OF 08, LINE REPAIRED. IN 08 ALL LINES SHOW SIGNS OF FLAKING, DELAMINATING AND CORROSION. *TR
NHTSA ODI #10324935
50,825 miles · Apr 10, 2010
Service Brakes, HydraulicCrash
DEAR NHTSA, I WAS READING THIS ARTICLE (I.E. LINK HTTP://TRUCKS.ABOUT.COM/B/2010/04/08/BRAKE-LINE-CORROSION-SUSPECTED-IN-GM-TRUCKS.HTM) AND THIS PROMPTED ME TO CONTACT YOU. I HAVE A 2002 CHEVY SILVERADO 2500 PICKUP TRUCK. DUE TO CORRODED AND EXCESSIVE RUSTED-OUT BRAKE LINES, I EXPERIENCED TOTAL BRAKE LINE FAILURE CAUSING ME T…
Read full complaint
DEAR NHTSA, I WAS READING THIS ARTICLE (I.E. LINK HTTP://TRUCKS.ABOUT.COM/B/2010/04/08/BRAKE-LINE-CORROSION-SUSPECTED-IN-GM-TRUCKS.HTM) AND THIS PROMPTED ME TO CONTACT YOU. I HAVE A 2002 CHEVY SILVERADO 2500 PICKUP TRUCK. DUE TO CORRODED AND EXCESSIVE RUSTED-OUT BRAKE LINES, I EXPERIENCED TOTAL BRAKE LINE FAILURE CAUSING ME TO GET INTO AN ACCIDENT. THIS HAPPENED IN NOVEMBER OF 2008 AND; I ONLY HAD 50,825 MILES ON MY VEHICLE AT THE TIME. LUCKILY FOR ME, I WAS (FOR THE MOST PART) IN STOP AND GO TRAFFIC. IF I WASN'T, I TRULY BELIEVE THINGS COULD HAVE BEEN MUCH WORSE RESULTING IN SEVERE INJURY OR DEATH. THIS HAPPENED ON ROUTE 495 NORTH, A THREE-LANE HIGHWAY NEAR LOWELL MASSACHUSETTS. AS IT WAS, I REAR-ENDED A PICKUP TRUCK IN FRONT OF ME THAT SUBSEQUENTLY HIT THE VEHICLE IN FRONT OF HER. FORTUNATELY... NO ONE WAS SERIOUSLY HURT. I DON'T EVEN WANT TO THINK WHAT MIGHT OF HAPPENED IF I WAS DOING 65 - 70 MPH AND HAD TO AVOID ANOTHER VEHICLE OR BRAKE QUICKLY. I CONTACTED GM ABOUT THIS BUT NEVER RECEIVED A REPLY BACK. MY TOTAL FAILURE OF BRAKES WAS VERIFIED AT THE SCENE BY THE TOW TRUCK DRIVER (CERTIFIED MA MECHANIC), THE STATE POLICE PERSON, MY INSURANCE COMPANY, AND LANNAN CHEVROLET OF LOWELL WHO HAD TO REPLACE EVERY BIT OF BRAKE LINE(S). *TR
NHTSA ODI #10324849
NHTSA investigations
4EA07013 · Trailer Hitch Receiver Failure
Opened Sep 14, 2007 · Closed Sep 12, 2008
Status: closed (inferred from source dates) · Trailer Hitches
COMPLAINT REPORTS ALLEGE POOR WELD QUALITY AND/OR BENDING OF THE SUBJECT VEHICLE ORIGINAL EQUIPMENT TRAILER HITCH RECEIVER.THE AGENCY'S INVESTIGATION INCLUDED ANALYSIS OF MANUFACTURER AND AGENCY INCIDENT REPORTS, REVIEW OF POLICE REPORTS, ANALYSIS OF THE AGENCY'S FATAL ANALYSIS REPORTING SYSTEM, A VEHICLE OWNER SURVEY, INSPECTION OF TOW VEHICLES/HITCHES AND ANALYSIS OF FAILED PARTS.INCIDENTS OF WELD FAILURE WERE RARE AND ASSOCIATED WITH VERY LOW-SPEED DRIVING (TURNING, BACKING AND SUDDEN STOPPING).INCIDENTS OF BENDING WERE ASSOCIATED WITH IMPROPER TRAILER HITCH ADJUSTMENT OR OVERLOADING. A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL MONITOR THIS ISSUE AND RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE DOCUMENT SEARCH FILE FOR ADDITION INFORMATION.
PE07025 · Trailer Hitch Receiver Failure
Opened May 14, 2007 · Closed Sep 14, 2007
Status: closed (inferred from source dates) · Trailer Hitches
GM PROVIDED ADDITIONAL DATA REGARDING ALLEGATIONS OF FAILURE OF THE TRAILER HITCH.ODI REVIEWED THAT AS WELL AS OTHER DATA PROVIDED BY PEER MANUFACTURERS.BASED ON OUR REVIEW, ODI FINDS THE NEED TO FURTHER INVESTIGATE THIS ISSUE.THIS PRELIMINARY EVALUATION IS UPGRADED TO AN ENGINEERING ANALYSIS (EA07-013) FOR FURTHER ASSESSMENT AND STUDY OF THIS ISSUE.
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.
Illustration