NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
351 reports51,250 miles · May 2, 2007
Service Brakes, Hydraulic
WHEN APPLYING THE BRAKES WHEN COMING TO A STOP, THE ANTILOCK BRAKE SYSTEM ACTIVATES, CAUSING THE VEHICLE TO TAKE MUCH LONGER TO STOP, AND FEEL AS THOUGH IT MAY NOT STOP. THE PROBLEM BECAME PROGRESSIVELY WORSE AND WAS A SAFETY ISSUE WHICH NEEDED TO BE CORRECTED. ALTHOUGH THIS PROBLEM IS WELL DOCUMENTED FOR CHEVY VEHICLES (CASE …
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WHEN APPLYING THE BRAKES WHEN COMING TO A STOP, THE ANTILOCK BRAKE SYSTEM ACTIVATES, CAUSING THE VEHICLE TO TAKE MUCH LONGER TO STOP, AND FEEL AS THOUGH IT MAY NOT STOP. THE PROBLEM BECAME PROGRESSIVELY WORSE AND WAS A SAFETY ISSUE WHICH NEEDED TO BE CORRECTED. ALTHOUGH THIS PROBLEM IS WELL DOCUMENTED FOR CHEVY VEHICLES (CASE #05V379000), WE DID NOT RECEIVE A RECALL NOTICE. WE TOOK THE VEHICLE TO A DEALER, WHO CONFIRMED THAT THE VIN WAS NOT ONE OF THOSE RECALLED. I CALLED CHEVY, WHO ALSO CONFIRMED THAT THE VIN WAS NOT INCLUDED IN THE RECALL. BECAUSE IT WAS A SAFETY HAZARD WHICH COULD HAVE RESULTED IN AN ACCIDENT, WE HAD THE VEHICLE FIXED. THE DEALER CHARGED US TO CORRECT IT, WITH THE SAME EXACT SOLUTION AS IN THE RECALL. THE ANTILOCK BRAKE SENSORS WERE REMOVED, CLEANED AND PUT BACK IN, CORRECTING THE PROBLEM. IT SEEMS AS THOUGH THE 2002 CHEVY SILVERADO HD PICKUP WAS EXCLUDED FROM THE RECALL, EVEN THOUGH THE SAME PROBLEM EXISTS AS IN THE OTHER SILVERADO PICKUPS. IT IS EVEN MORE OF A SAFETY HAZARD SINCE IT IS A HEAVIER TRUCK. CHEVY NEEDS TO RECALL ALL OF THE VEHICLES THAT HAVE THIS SAME PROBLEM, OR AT LEAST COVER THE EXPENSES FOR THOSE WHO BRING IT IN FOR SERVICE FOR THE SAME ISSUE AS RECALLED IN OTHER VEHICLES. *TR
NHTSA ODI #10189588
Mileage unknown · Feb 22, 2007
Steering
I HAVE A 2002 CHEVY SILVERADO 2500 HD TRUCK. THE STEERING WHEEL COLUMN, STEERING SHAFT. AND INTERMEDIATE SHAFT MAKE CLUNKING NOISES WHILE TURNING RIGHT OR LEFT AND IS FELT IN THE STEERING WHEEL. CHEVY'S FIX IS TO REMOVE THE INTERMEDIATE SHAFT AND LUBRICATE IT, THEN RE-ASSEMBLE THE STEERING SHAFT. THIS PROBLEM FIRST HAPPENED T…
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I HAVE A 2002 CHEVY SILVERADO 2500 HD TRUCK. THE STEERING WHEEL COLUMN, STEERING SHAFT. AND INTERMEDIATE SHAFT MAKE CLUNKING NOISES WHILE TURNING RIGHT OR LEFT AND IS FELT IN THE STEERING WHEEL. CHEVY'S FIX IS TO REMOVE THE INTERMEDIATE SHAFT AND LUBRICATE IT, THEN RE-ASSEMBLE THE STEERING SHAFT. THIS PROBLEM FIRST HAPPENED TO ME 6/04 WITH ONLY 19,748 MILES ON MY TRUCK UNDER WARRANTY NOW ITS HAPPENED AGAIN 2/07 WITH 36,100 MILES ON MY TRUCK. AGAIN, THERE FIX IS PER THERE SERVICE BULLETIN 02-02-35-006A,REMOVE SHAFT AND LUBRICATE THEN RE-ASSEMBLE, NOW IT COST ME NOT WARRANTY. THIS SEEMS TO BE A ON GOING PROBLEM WITH MY TRUCK. WHAT HAPPENS IF I DON"T SPEND THE MONEY AND GET IT RE-LUBED EVERY COUPLE OF YEARS. WILL THE SPINES WEAR- OUT OR BRAKE, THEN POSSIBLE CAUSING STEERING FAILURE WHILE DRIVING???? THIS PROBLEM MAY BE ABLE TO BE RESOLVED BY INSTALLING A GREASE FITTING ON THE SHAFT. I FELL THIS SHOULD BE A RECALL TO BE FIXED BY CHEVY. CHEVY HAS A SERVICE BULLETIN THAT SHOWS SEVEN DIFFERENT MODELS THAT HAVE THE SAME MECHANICAL PROBLEM. BULLETIN NO. 00-02-35-003K *JB
NHTSA ODI #10183302
58,049 miles · Jan 26, 2007
Service Brakes, Hydraulic
TL* - THE CONTACT STATED THAT WHILE DRIVING AT 10 MPH THE 2002 CHEVROLET SILVERADO THE HARD BRAKE LINE RUPTURED. T THERE WERE NO WARNING INDICATORS. . THE CONTACT HAD JUST PICKED UP THE VEHICLE FROM THE DEALER AFTER HAVING ROUTINE MAINTENANCE PERFORMED ON THE VEHICLE. THE DEALER DIAGNOSED THE FAILURE AS THE BRAKE LINE HAV…
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TL* - THE CONTACT STATED THAT WHILE DRIVING AT 10 MPH THE 2002 CHEVROLET SILVERADO THE HARD BRAKE LINE RUPTURED. T THERE WERE NO WARNING INDICATORS. . THE CONTACT HAD JUST PICKED UP THE VEHICLE FROM THE DEALER AFTER HAVING ROUTINE MAINTENANCE PERFORMED ON THE VEHICLE. THE DEALER DIAGNOSED THE FAILURE AS THE BRAKE LINE HAVING CORRODED. *AK
NHTSA ODI #10180807
43,000 miles · Jan 2, 2007
Parking Brake
PARKING BRAKE DOES NOT HOLD VEHICLE AFTER RECALLED REPAIRS PERFORMED. DEALER REFUSED REPAIR. *JB
NHTSA ODI #10177467
16,000 miles · Dec 19, 2006
Parking Brake
TL*- WHEN CONTACT PARKS ON A HILL AND APPLIES THE PARKING BRAKE, QUITE OFTEN THE VEHICLE TRIES TO DRIFT. THE CONTACT STATES THAT WEATHER CONDITION AREN'T A PROBLEM WITH THE DRIFTING. HE HAS PARKED ON A HILL WHEN IT HAS BEEN DRY, WET OR SNOWING AND THE PROBLEM CONTINUES. THE CONTACT IS CONCERN BECAUSE HE HAS BROUGHT HIS VEHICLE…
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TL*- WHEN CONTACT PARKS ON A HILL AND APPLIES THE PARKING BRAKE, QUITE OFTEN THE VEHICLE TRIES TO DRIFT. THE CONTACT STATES THAT WEATHER CONDITION AREN'T A PROBLEM WITH THE DRIFTING. HE HAS PARKED ON A HILL WHEN IT HAS BEEN DRY, WET OR SNOWING AND THE PROBLEM CONTINUES. THE CONTACT IS CONCERN BECAUSE HE HAS BROUGHT HIS VEHICLE OVER AND OVER TO THE DEALERSHIP AND THEY STATED THAT THERE ISN'T ANYTHING WRONG WITH THE VEHICLE. THE CONTACT CAN PROVIDE COPIES OF INVOICES IF NEEDED.
NHTSA ODI #10176613
89,562 miles · Dec 8, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHEN SLOWING THE VEHICLE TO A STOP, THE ABS SYSTEM FAILED WHEN THE VEHICLE SLOWED TO 10 MPH AND CAUSED THE PEDAL TO VIBRATE BADLY AND THE VEHICLE CONTINUED FORWARD MOTION FOR ANOTHER 5-10 FEET. THE SERVICE DEALER REPAIRED THE PROBLEM. THE MANUFACTURER WAS NOTIFIED.
NHTSA ODI #10175558
138,000 miles · Oct 31, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT LOW SPEEDS, THE ABS ACTIVATED AND THERE WAS AN INCREASED STOPPING DISTANCE WITHOUT WARNING. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT REPAIR SHOP WHO DETERMINED THE ABS WHEEL SENSORS NEEDED TO BE REPLACED. THERE WAS A NHTSA RECALL, # 05V379000, REGARDING THE ANTILOCK …
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DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT LOW SPEEDS, THE ABS ACTIVATED AND THERE WAS AN INCREASED STOPPING DISTANCE WITHOUT WARNING. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT REPAIR SHOP WHO DETERMINED THE ABS WHEEL SENSORS NEEDED TO BE REPLACED. THERE WAS A NHTSA RECALL, # 05V379000, REGARDING THE ANTILOCK BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. THE MANUFACTURER WAS ALERTED. UPDATED 11/30/2006 - *NM
NHTSA ODI #10172283
54,000 miles · Oct 13, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED THE ABS WAS NOT FUNCTIONING AT LOW SPEEDS WHICH BECAME PROGRESSIVELY WORSE. THERE WAS A NHTSA RECALL #05V379000 PERTAINING TO SERVICE BRAKES, HYDRAULIC:ANTILOCK. THE DEALER WAS CONTACTED, AND DETERMINED THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. THE MANUFACTURER WAS ALSO CONTACTED, AND C…
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DT*: THE CONTACT STATED THE ABS WAS NOT FUNCTIONING AT LOW SPEEDS WHICH BECAME PROGRESSIVELY WORSE. THERE WAS A NHTSA RECALL #05V379000 PERTAINING TO SERVICE BRAKES, HYDRAULIC:ANTILOCK. THE DEALER WAS CONTACTED, AND DETERMINED THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. THE MANUFACTURER WAS ALSO CONTACTED, AND CONFIRMED THE VEHICLE WAS NOT INCLUDED IN THE RECALL. *NM
NHTSA ODI #10170760
74,950 miles · Oct 10, 2006
Engine And Engine Cooling
2002 2500HD SILVERADO WITH 8.1 ENGINE. TWO TIMES IT CRANKED WITH NO START. TWO OTHER TIMES IT SHUT OFF AT HIGHWAY SPEEDS WITH NO WARNING OF ANY KIND. CHANGED THE FUEL PUMP AND FUEL FILTER. FINALLY CHANGED THE CRANK SENSOR. THE SENSOR FIXED THE PROBLEM. *JB
NHTSA ODI #10170441
54,000 miles · Sep 27, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT 5 MPH, THERE WAS AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT REPAIR SHOP WHO DETERMINED THE WHEEL SPEED SENSOR NEEDED TO BE REPLACED. THERE WAS A NHTSA RECALL, #05V379000, REGARDING THE ANTILOCK BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE …
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DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT 5 MPH, THERE WAS AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT REPAIR SHOP WHO DETERMINED THE WHEEL SPEED SENSOR NEEDED TO BE REPLACED. THERE WAS A NHTSA RECALL, #05V379000, REGARDING THE ANTILOCK BRAKES. THE VEHICLE WAS NOT INCLUDED IN THE RECALL DUE TO THE VIN. THE MANUFACTURER WAS NOTIFIED. UPDATED 10/17/2006 - *NM
NHTSA ODI #10169449
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.
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