BROUGHT MY TRUCK IN FOR AN OIL CHANGE, THEY COME IN TO TELL ME, HEY, YOUR BRAKE LINE BLEW. I WENT DOWN TO CHECK IT OUT, THE LINES ARE PRETTY SEVERELY RUSTED, AND SURE ENOUGH BRAKE FLUID WAS LEAKING OUT ONE OF THEM. BRAKES GO TOTALLY TO THE FLOOR, ABSOLUTE MINIMAL BRAKE PEDAL PRESSURE. GOES RIGHT TO FLOOR EVERY TIME. IT DOESN'T C…
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BROUGHT MY TRUCK IN FOR AN OIL CHANGE, THEY COME IN TO TELL ME, HEY, YOUR BRAKE LINE BLEW. I WENT DOWN TO CHECK IT OUT, THE LINES ARE PRETTY SEVERELY RUSTED, AND SURE ENOUGH BRAKE FLUID WAS LEAKING OUT ONE OF THEM. BRAKES GO TOTALLY TO THE FLOOR, ABSOLUTE MINIMAL BRAKE PEDAL PRESSURE. GOES RIGHT TO FLOOR EVERY TIME. IT DOESN'T COUNTERACT THE LOSS OF PRESSURE BY ALLOWING THE BACK BRAKE PRESSURE TO STILL WORK (THE FRONT LINE WAS THE LEAKER) LIKE GM SAYS THEY SHOULD. NO BRAKING AT ALL. HAD TO DRIVE IT HOME WITH E BRAKE, AND REPLACE ALL CORRODED BRAKE LINES. I'VE HEARD OF LOTS OF OTHERS HAVING THE SAME ISSUE, GM BRAKE LINES AREN'T UP TO PAR. *TR
NHTSA ODI #10545672
173,000 miles · Sep 23, 2013
Service Brakes
WHEN I APPLIED PRESSURE TO THE BRAKE PEDAL, AS I BACKED UP IN MY DRIVEWAY, THE PEDAL WENT TO THE FLOORBOARDS. I STOPPED THE VEHICLE AND LOOKING UNDER THE TRUCK SAW A PUDDLE OF BRAKE FLUID. A CLOSER VISUAL INSPECTION REVEALED A LEAK IN THE BRAKE LINE FEEDING THE REAR WHEELS (NEXT TO THE FUEL TANK). I INSPECTED THE REMAINING …
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WHEN I APPLIED PRESSURE TO THE BRAKE PEDAL, AS I BACKED UP IN MY DRIVEWAY, THE PEDAL WENT TO THE FLOORBOARDS. I STOPPED THE VEHICLE AND LOOKING UNDER THE TRUCK SAW A PUDDLE OF BRAKE FLUID. A CLOSER VISUAL INSPECTION REVEALED A LEAK IN THE BRAKE LINE FEEDING THE REAR WHEELS (NEXT TO THE FUEL TANK). I INSPECTED THE REMAINING LINES AND ALL APPEAR SERIOUSLY DETERIORATED. I WILL NEED TO HAVE ALL THE BRAKE LINES REPLACED. I FEEL FORTUNATE THAT I HAD NOT LEFT THE DRIVEWAY WHEN THIS BRAKE SYSTEM FAILURE OCCURRED. AND, JUST AS A SIDE NOTE, THE FRAME OF THE TRUCK, PARTICULARLY THE CROSS PIECES HOLDING THE SPARE TIRE AND BRACKET FOR THE SHOCK ABSORBER, HAVE RUSTED TO SUCH AN EXTENT THAT IT WILL HAVE TO REINFORCED/REPLACED. CORROSION THIS SEVERE COULD BE EXPECTED OF THE SHEET METAL, BUT NOT THE FRAME.
NHTSA ODI #10544939
92,000 miles · Sep 16, 2013
Service Brakes
WHEN I STARTED OUT OF MY DRIVEWAY & HIT THE BRAKES, THEY WENT TO THE FLOOR. EMERGENCY BRAKE SLOWED, BUT WOULD NOT STOP. BRAKE LINES BEHIND LEFT FRONT WHEEL ON TOP OF FRAME HAD HOLE(S) RUSTED IN THEM & FLUID RUNNING OUT. EMERGENCY BRAKE WOULD NOT WORK PROPERLY BECAUSE OF LEAKING RIGHT REAR WHEEL SEAL THAT HAD GREASED THE EMERGEN…
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WHEN I STARTED OUT OF MY DRIVEWAY & HIT THE BRAKES, THEY WENT TO THE FLOOR. EMERGENCY BRAKE SLOWED, BUT WOULD NOT STOP. BRAKE LINES BEHIND LEFT FRONT WHEEL ON TOP OF FRAME HAD HOLE(S) RUSTED IN THEM & FLUID RUNNING OUT. EMERGENCY BRAKE WOULD NOT WORK PROPERLY BECAUSE OF LEAKING RIGHT REAR WHEEL SEAL THAT HAD GREASED THE EMERGENCY BRAKE SHOES. TRUCK HAD TO BE HAULED TO A GARAGE, WHERE IT IS NOW. *TR
NHTSA ODI #10543937
Mileage unknown · Sep 10, 2013
Service Brakes
I WENT TO MOVE THE TRUCK TO HOOK UP A TRAILER AND THE PEDAL WENT TO THE FLOOR. LOOKED UNDER VEHICLE AND BRAKE LINES WERE RUSTED AND BRAKE FLUID EVERYWHERE. *TR
NHTSA ODI #10542856
138,000 miles · Sep 8, 2013
Service Brakes
I WAS DRIVING DOWN THE ROAD WHEN ALL OF A SUDDEN THE BRAKE PEDAL WENT TO THE FLOOR. COME TO FINED OUT ONE OF THE BRAKE LINES RUSTED OUT.
NHTSA ODI #10542510
107,000 miles · Aug 28, 2013
Service Brakes
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, HE ATTEMPTED TO ENGAGE THE BRAKES BUT THE PETAL ABNORMALLY TRAVELED TO THE FLOOR BOARD. THE CONTACT STATED THAT AFTER INSPECTING THE VEHICLE HE NOTICED THAT THE BRAKE LINES WERE CORRODED. THE VEHICLE WAS NOT TAKEN TO THE DEALER…
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TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, HE ATTEMPTED TO ENGAGE THE BRAKES BUT THE PETAL ABNORMALLY TRAVELED TO THE FLOOR BOARD. THE CONTACT STATED THAT AFTER INSPECTING THE VEHICLE HE NOTICED THAT THE BRAKE LINES WERE CORRODED. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 107,000.
NHTSA ODI #10537635
55,000 miles · Aug 22, 2013
Service Brakes
EXPERIENCED COMPLETE BRAKE FAILURE WITHOUT ANY WARNING LIGHTS DUE TO RUSTED BRAKE LINES.THE PLACEMENT OF THE ANTILOCK BRAKE CONTROLLER THREE FEET BEHIND THE DRIVERS SIDE TIRE AT THE TOP OF FRAME AND NO APPARENT CORROSION PROTECTION SEEMS TO HAVE CAUSED THIS TO HAPPEN. *TR
NHTSA ODI #10536837
130,000 miles · Aug 19, 2013
Service Brakes
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. THE CONTACT STATED THAT WHILE REVERSING FROM A DRIVE WAY, THE BRAKES FAILED TO STOP. THE CONTACT NOTICED BRAKE FLUID LEAKING FROM THE BRAKE LINE. THE CONTACT WAS ABLE TO USE THE EMERGENCY PARKING BRAKE TO STOP THE VEHICLE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER W…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. THE CONTACT STATED THAT WHILE REVERSING FROM A DRIVE WAY, THE BRAKES FAILED TO STOP. THE CONTACT NOTICED BRAKE FLUID LEAKING FROM THE BRAKE LINE. THE CONTACT WAS ABLE TO USE THE EMERGENCY PARKING BRAKE TO STOP THE VEHICLE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 130,000.
NHTSA ODI #10536117
105,000 miles · Aug 4, 2013
Service Brakes
THE TRUCK IS PRIMARILY USED FOR TOWING TRAILERS. ONCE IN 2012 WHEN TOWING A 10K LBS TRAVEL TRAILER A REAR BRAKE LINE THAT APPEARED SOLID DEVELOPED A HOLE AND RELEASED ANY HYDRAULIC PRESSURE. THE TRUCK WAS SAFELY STOPPED AND REPAIRED. AUGUST OF 2013 WHILE TOWING PWCS ON A TRAILER ANOTHER LINE THAT APPEARED TO BE SOLID BRAKE LINE …
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THE TRUCK IS PRIMARILY USED FOR TOWING TRAILERS. ONCE IN 2012 WHEN TOWING A 10K LBS TRAVEL TRAILER A REAR BRAKE LINE THAT APPEARED SOLID DEVELOPED A HOLE AND RELEASED ANY HYDRAULIC PRESSURE. THE TRUCK WAS SAFELY STOPPED AND REPAIRED. AUGUST OF 2013 WHILE TOWING PWCS ON A TRAILER ANOTHER LINE THAT APPEARED TO BE SOLID BRAKE LINE DEVELOPED A HOLE AND LEAKED OUT THE BREAK FLUID. TRUCK WAS SAFELY STOPPED AND IS AWAITING REPAIRS. THE TRUCK APPEARS TO HAVE AN ABNORMAL AMOUNT OF RUST ON THE BRAKE LINES BRAKE COMPONENTS FRAME AND SUSPENSION COMPONENTS FOR THE AGE OF TRUCK. FRONT AND REAR BRAKES WERE REPLACED 3 TIMES DUE TO RUST ALSO. BODY OF THE TRUCK HAS NO RUST OR DAMAGE TO IT. *TR
VEHICLE DESCRIPTION: CERTAIN PICKUP TRUCKS EQUIPPED WITH 6.6L DIESEL ENGINES FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 105, "HYDRAULIC AND ELECTRIC BRAKE SYSTEMS." THESE VEHICLES HAVE A BRAKE SYSTEM WARNING LIGHT IN THE INSTRUMENT CLUSTER THAT MAY NOT ILLUMINATE WHEN THE BRAKE FLUID IS LOW. IN ADDITION, WHEN THE BRAKE FLUID IS LOW, THE VEHICLE MAY NOT MEET THE PARTIAL SYSTEM REQUIREMENTS OF FMVSS NO. 105.
Consequence & remedy
Consequence: THESE CONDITIONS COULD RESULT IN REDUCED BRAKING CAPABILITY, WHICH COULD LEAD TO A CRASH.
Remedy: DEALERS WILL CHANGE THE LOCATION OF A WIRE CONNECTION IN THE UNDERHOOD BUSSED ELECTRICAL CENTER. OWNER NOTIFICATION BEGAN JULY 9, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4
EA07013 · 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.
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