NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
351 reports38,700 miles · Oct 15, 2007
Service Brakes, Hydraulic
2002 CHEVROLET K2500HD , THE ANTI-LOCK BRAKES ACTIVATE AT SLOW SPEEDS DURING GENTLE BRAKING. SAME TROUBLE AS DESCRIBED IN NHTSA CAMPAIGN # 05V379000 / CHEVY RECALL # 05068. I HAVE THE SAME SYMPTOMS AS DESCRIBED IN THIS DOCUMENT BUT MY DEALER AND THE GM CUST. SERV. LINE BOTH ADVISE THAT MY TRUCK IS NOT INCLUDED IN THE RECALL. SER…
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2002 CHEVROLET K2500HD , THE ANTI-LOCK BRAKES ACTIVATE AT SLOW SPEEDS DURING GENTLE BRAKING. SAME TROUBLE AS DESCRIBED IN NHTSA CAMPAIGN # 05V379000 / CHEVY RECALL # 05068. I HAVE THE SAME SYMPTOMS AS DESCRIBED IN THIS DOCUMENT BUT MY DEALER AND THE GM CUST. SERV. LINE BOTH ADVISE THAT MY TRUCK IS NOT INCLUDED IN THE RECALL. SERVICE MANAGER AT LOCAL CHEVROLET DEALERSHIP SAID $230 FOR THE SAME WORK AS STATED IN THE RECALL PLUS $80 FOR EACH SENSOR IF THEY BREAK WHEN BEING REMOVED WHICH THEY SEEM PRONE TO DO. OR HE SAID THAT I COULD PULL THE FUSE TO THE ABS SYSTEM, BUT THEY COULD NOT. GM CUSTOMER SERVICE CONTACT SAID THEY COULD NOT HELP WITH THE BREAK PROBLEM BUT OFFERED A COUPON FOR OTHER SERVICE IE> OIL CHANGE. *JB
NHTSA ODI #10205767
130,465 miles · Oct 15, 2007
Power Train
VIBRATION CLIP BREAKS INSIDE TRANSFER CASE RUBBING HOLE THRU REAR CASE HALF CAUSING LOSS OF FLUID AND RUINING ENTIRE TRANSFER CASE ASSEMBLY. REPAIR COST APPROX. $2000.00. *TR
NHTSA ODI #10205716
197,000 miles · Aug 27, 2007
Service Brakes, Hydraulic
2002 CHEVROLET K2500HD , THE ANTI-LOCK BRAKES ACTIVATED AT SLOW SPEEDS DURING GENTLE BRAKING. SAME TROUBLE AS DESCRIBED IN NHTSA CAMPAIGN # 05V379000 / CHEVY RECALL # 05068. I HAVE THE SAME SYMPTOMS AS DESCRIBED IN THIS DOCUMENT BUT MY DEALER AND THE GM CUST. SERV. LINE BOTH ADVISE THAT MY TRUCK IS NOT INCLUDED IN THE RECALL.…
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2002 CHEVROLET K2500HD , THE ANTI-LOCK BRAKES ACTIVATED AT SLOW SPEEDS DURING GENTLE BRAKING. SAME TROUBLE AS DESCRIBED IN NHTSA CAMPAIGN # 05V379000 / CHEVY RECALL # 05068. I HAVE THE SAME SYMPTOMS AS DESCRIBED IN THIS DOCUMENT BUT MY DEALER AND THE GM CUST. SERV. LINE BOTH ADVISE THAT MY TRUCK IS NOT INCLUDED IN THE RECALL. *JB
NHTSA ODI #10200950
46,000 miles · Aug 22, 2007
Steering
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500. WHILE DRIVING 5 MPH IN REVERSE, THE POWER STEERING FAILED. THE CONTACT SHUT OFF THE ENGINE AND HAS NOT YET TAKEN THE VEHICLE TO THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 46,000.
NHTSA ODI #10200424
21,000 miles · Aug 7, 2007
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. WHILE APPLYING THE BRAKES AT 5 MPH, THE BRAKE PEDAL WOULD PULSE AND GRIND. TWO TO THREE SECONDS LATER, THE VEHICLE WOULD STOP. THE MANUFACTURER STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA RECALL NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). THE CURRENT MILEAG…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. WHILE APPLYING THE BRAKES AT 5 MPH, THE BRAKE PEDAL WOULD PULSE AND GRIND. TWO TO THREE SECONDS LATER, THE VEHICLE WOULD STOP. THE MANUFACTURER STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA RECALL NUMBER 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). THE CURRENT MILEAGE WAS 22,000 AND FAILURE MILEAGE WAS 21,000. UPDATED 02-01-08 *BF UPDATED 02/01/08 *TR
NHTSA ODI #10198730
50,000 miles · Jul 19, 2007
Electrical System
MY 2002 CHEVY 2500 HD SILVERADO WITH 8.1 ENGINE QUITS RUNNING WHILE DRIVING. DOES NOT MATTER WHAT SPEED I'M GOING, IT JUST STOPS RUNNING. AFTER I PULL OVER PUT TRUCK IN PARK, TURN KEY OFF FOR A FEW MINUTES IT WILL USUALLY START UP. *JB
NHTSA ODI #10196894
100,000 miles · Jul 16, 2007
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. WHEN THE VEHICLE COMES TO A STOP, THE ANTILOCK BRAKING SYSTEM ACTIVATES. HOWEVER, THE VEHICLE ROLLS APPROXIMATELY FIVE MORE FEET BEFORE COMING TO A COMPLETE STOP. THE CONTACT'S VIN IS EXCLUDED FROM RECALL # 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). THE CURRENT MIL…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. WHEN THE VEHICLE COMES TO A STOP, THE ANTILOCK BRAKING SYSTEM ACTIVATES. HOWEVER, THE VEHICLE ROLLS APPROXIMATELY FIVE MORE FEET BEFORE COMING TO A COMPLETE STOP. THE CONTACT'S VIN IS EXCLUDED FROM RECALL # 05V379000 (SERVICE BRAKES, HYDRAULIC:ANTILOCK). THE CURRENT MILEAGE IS 125,000 AND FAILURE MILEAGE WAS 100,000.
NHTSA ODI #10196482
57,000 miles · Jul 10, 2007
Visibility
TL*THE CONTACT OWNS A 2005 CHEVROLET SILVERADO 2500. ON JULY 9, 2007, WHILE DRIVING 5MPH AND ENGAGING THE WIPERS, THE WIPER FLUID SOUNDED LIKE PIECES OF ICE CHIPS WERE HITTING THE WINDOW. THE FRONT WINDOW CRACKED ON THE DRIVER SIDE. THERE WERE NO INJURIES. THE CONTACT STATED THAT THE GLASS WAS DEFECTIVE. THE FAILURE HAS NOT BEE…
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TL*THE CONTACT OWNS A 2005 CHEVROLET SILVERADO 2500. ON JULY 9, 2007, WHILE DRIVING 5MPH AND ENGAGING THE WIPERS, THE WIPER FLUID SOUNDED LIKE PIECES OF ICE CHIPS WERE HITTING THE WINDOW. THE FRONT WINDOW CRACKED ON THE DRIVER SIDE. THERE WERE NO INJURIES. THE CONTACT STATED THAT THE GLASS WAS DEFECTIVE. THE FAILURE HAS NOT BEEN DIAGNOSED. THE VIN AND ENGINE SIZE ARE UNAVAILABLE. THE VEHICLE DOES NOT HAVE CRUISE CONTROL. THE FAILURE AND CURRENT MILEAGE WERE 57,000.
NHTSA ODI #10196921
38,000 miles · Jun 14, 2007
Service Brakes, HydraulicSteering
2002 CHEVROLET SILVERADO 2500HD 4WD. STEERING BOX FAILURE. VEHICLE HAS HAD A "CLUNKING" NOISE IN THE GEAR BOX SINCE NEW, WITH THE STEERING OFF CENTER TO THE 2 O'CLOCK POSITION. DEALER HAS REMEDIED SEVERAL TIMES BY GREASING THE BOX. TOOK IN FOR SERVICE ON SAME PROBLEM. DEALER FOUND THE STEERING BOX WAS BROKEN AND APPEARED TO…
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2002 CHEVROLET SILVERADO 2500HD 4WD. STEERING BOX FAILURE. VEHICLE HAS HAD A "CLUNKING" NOISE IN THE GEAR BOX SINCE NEW, WITH THE STEERING OFF CENTER TO THE 2 O'CLOCK POSITION. DEALER HAS REMEDIED SEVERAL TIMES BY GREASING THE BOX. TOOK IN FOR SERVICE ON SAME PROBLEM. DEALER FOUND THE STEERING BOX WAS BROKEN AND APPEARED TO HAVE BEEN SINCE NEW. GREASE WAS FULL OF RUST. DEALER REPLACED UNDER EXTENDED WARRANTY. CHARGED ME TO REMOVE AFTER MARKET PLOW EQUIPMENT. ANTI LOCK BRAKE FAILURE. 2ND OCCASION. BRAKES FAILURE AT LOW SPEED. DEALER REFUSED TO CORRECT UNDER EXTENDED WARRANTY. PER GM THIS IS NOT COVERED UNDER RECALL NHTSA CAMPAIGN # 05V379000 & IS A "SERVICE" ITEM. COST OVER $300 TO CLEAN. *TR
NHTSA ODI #10193322
83,000 miles · Jun 12, 2007
Power Train
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. AFTER THE VEHICLE WAS DRIVEN 65 MPH AND THEN PARKED, THE CONTACT NOTICED TRANSMISSION FLUID GUSHING OUT FROM UNDERNEATH THE VEHICLE. HE LATER DISCOVERED THAT THERE WAS A CRACK IN THE REAR TRANSMISSION ADAPTER, CAUSED BY A FAULTY UNIVERSAL JOINT. THE DEALER HAS REPAIRED T…
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TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500 HD. AFTER THE VEHICLE WAS DRIVEN 65 MPH AND THEN PARKED, THE CONTACT NOTICED TRANSMISSION FLUID GUSHING OUT FROM UNDERNEATH THE VEHICLE. HE LATER DISCOVERED THAT THERE WAS A CRACK IN THE REAR TRANSMISSION ADAPTER, CAUSED BY A FAULTY UNIVERSAL JOINT. THE DEALER HAS REPAIRED THE VEHICLE. THE CURRENT MILEAGE IS 85,000 AND FAILURE MILEAGE WAS 83,000.
NHTSA ODI #10193074
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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