NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
50 reports19,500 miles · Sep 7, 2006
Service Brakes, Hydraulic
DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT 10 MPH, THE ANTILOCK BRAKES ACTIVATED UNDER NORMAL CONDITIONS AND THERE WAS AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS INSPECTED BY A DEALER WHO DETERMINED THE WHEEL SPEED SENSORS WERE CORROSIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS EXPOSED TO EXCESSIVE ROADS …
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DT*: THE CONTACT STATED WHILE APPLYING BRAKE PRESSURE AT 10 MPH, THE ANTILOCK BRAKES ACTIVATED UNDER NORMAL CONDITIONS AND THERE WAS AN INCREASED STOPPING DISTANCE. THE VEHICLE WAS INSPECTED BY A DEALER WHO DETERMINED THE WHEEL SPEED SENSORS WERE CORROSIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS EXPOSED TO EXCESSIVE ROADS SALTS DURING THE WINTER MONTHS. 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.
NHTSA ODI #10167540
26,600 miles · Jul 16, 2006
Tires
RIGHT REAR TIRE TREAD SEPARATED FROM TIRE AT HIGHWAY SPEED (APPROXIMATELY 65 MPH). CREATED SIDE DAMAGE TO MY CHEVROLET. 3500 VAN. TIRE DID NOT BLOW OUT. WAS FLAT NEXT MORNING. *JB
NHTSA ODI #10162497
50,000 miles · Nov 21, 2005
Service Brakes, Hydraulic
DT: THE CONTACT STATES THERE IS A NHTSA RECALL CAMPAIGN 05379000 CONCERNING THE ANTI LOCK BRAKES . THIS VEHICLE MANIFESTS THE SAME PROBLEMS AS INDICATED IN THE RECALL, BUT IS NOT INCLUDED IN THE RECALL DUE TO VIN. THE CONTACT REPAIRED THE VEHICLE AT HIS OWN EXPENSE.*AK
NHTSA ODI #10143367
39,000 miles · Nov 10, 2005
Service Brakes, Hydraulic
UNDER NORMAL BRAKING JUST BEFORE STOPPING THE ABS ACTIVATES. *JB
NHTSA ODI #10142416
54,000 miles · Oct 3, 2005
SuspensionCrash
DT: WHILE IN A PARKING LOT CONSUMER'S VEHICLE ACCELERATED TO AVOID ANOTHER CAR AT A LOW SPEED WHEN THE LEFT REAR FRONT SPRING EYE OF THE REAR SUSPENSION BROKE OFF, CAUSING THE VEHICLE TO STRIKE A PILLAR. THIS OCCURRED WHEN THE REAR END OF THE VEHICLE LOST CONTROL, AND TURNED SIDEWAYS, STRIKING THE PILLAR DUE TO THE LOSS OF THE …
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DT: WHILE IN A PARKING LOT CONSUMER'S VEHICLE ACCELERATED TO AVOID ANOTHER CAR AT A LOW SPEED WHEN THE LEFT REAR FRONT SPRING EYE OF THE REAR SUSPENSION BROKE OFF, CAUSING THE VEHICLE TO STRIKE A PILLAR. THIS OCCURRED WHEN THE REAR END OF THE VEHICLE LOST CONTROL, AND TURNED SIDEWAYS, STRIKING THE PILLAR DUE TO THE LOSS OF THE SPRING. THE CONSUMER HAD THE VEHICLE TOWED TO A BODY SHOP. THE CONSUMER MADE THE DETERMINATION ABOUT THIS ISSUE. THE TRUCK IS AT THE BODY SHOP NOW. IT HAS NOT BEEN TO A DEALER. NO REPAIRS OR CORRECTIONS AT THIS TIME. THIS WAS THE FIRST ISSUE WITH THE REAR SUSPENSION. THERE WAS DAMAGE ONLY TO THE VEHICLE, NO POLICE REPORT WAS TAKEN. *AK
NHTSA ODI #10138333
26,000 miles · Aug 9, 2005
Engine And Engine CoolingService Brakes, HydraulicSuspension
DT: THE CONTACT OWNS 2002 CHEVROLET DUMP TRUCK. WHEN HE FIRST BOUGHT IT THE BRAKES WERE BAD. HE TOOK IT BACK TO THE DEALER, AND THEY PUT NEW ROTORS ON THE FRONT. HE WAS STILL HAVING PROBLEMS WITH THE BRAKES, AND HE TOOK IT BACK, AND THEY SAID THE BRAKES WERE FINE. HE TOOK IT TO MIDAS, AND THE BACK ROTORS WERE SHOT. THEY PUT NE…
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DT: THE CONTACT OWNS 2002 CHEVROLET DUMP TRUCK. WHEN HE FIRST BOUGHT IT THE BRAKES WERE BAD. HE TOOK IT BACK TO THE DEALER, AND THEY PUT NEW ROTORS ON THE FRONT. HE WAS STILL HAVING PROBLEMS WITH THE BRAKES, AND HE TOOK IT BACK, AND THEY SAID THE BRAKES WERE FINE. HE TOOK IT TO MIDAS, AND THE BACK ROTORS WERE SHOT. THEY PUT NEW BRAKES AND ROTORS ON THE BACK. ALSO, THE FUEL GAUGE SENSOR WAS DEFECTIVE. THEY REPLACED THE SENSOR. THE REAR END WAS BAD. THEY REBUILT THE REAR END. THEN THE EXHAUST SYSTEM MALFUNCTIONED, *AK AND THEY PUT NEW MANIFOLDS ON IT. *AK
NHTSA ODI #10132049
92,000 miles · Jun 13, 2005
Tires
TIRE FAILURE: THE 2002 CHEVROLET 3500 TRUCK PURCHASED HAD GOODYEAR WRANGLER TIRES ON AS ORIGINAL EQUIPMENT. THEY ALL BULGED AROUND THE RIM AND EVENTUALLY ONE "BLEW OUT" I TOOK THEM TO THE GOODYEAR DEALER AND THEY REPLACED THEM UNDER ROAD HAZARD. THE REPLACEMENT SET RAN HALF LIFE AND THEY STARTED TO BULGE IN THE SAME SPOT. ONE BL…
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TIRE FAILURE: THE 2002 CHEVROLET 3500 TRUCK PURCHASED HAD GOODYEAR WRANGLER TIRES ON AS ORIGINAL EQUIPMENT. THEY ALL BULGED AROUND THE RIM AND EVENTUALLY ONE "BLEW OUT" I TOOK THEM TO THE GOODYEAR DEALER AND THEY REPLACED THEM UNDER ROAD HAZARD. THE REPLACEMENT SET RAN HALF LIFE AND THEY STARTED TO BULGE IN THE SAME SPOT. ONE BLEW OUT ON THE FREEWAY.THIS TIME I REPLACED THEM WITH DIFFERENT TIRES, BUT SAVED THE OLD ONES IN CASE YOU WISHED TO LOOK AT THEM. SERIOUS INJURY COULD HAPPEN FROM THIS AND I THINK THAT IF I HAD REPLACED THEM WITH GOODYER TIRES, THE PROBLEM WOULD BE BURRIED WITHIN THE COMPANY.IF YOU ARE NOT INTERESTED THEN I NEED TO RECYCLE THEM.
NHTSA ODI #10125198
19,000 miles · May 2, 2005
Fuel System, Gasoline
THE CONSUMER PURCHASED A 2002 CHEVROLET 1 TON TRUCK IN 2003, EVER ONCE IN A WHILE IT HAS A COLD START. THIS BEGAN THE SAME MONTH THE VEHICLE WAS PURCHASED. FOUR TIMES SINCE DECEMBER THE VEHICLE HAS BEEN TO DEALER WHO CAN NOT FIND OUT WHAT IS WRONG WITH THE VEHICLE, BUT STARTS BACK AND QUITS OFTEN ON ROAD. HAS BEEN TOWED, WHI…
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THE CONSUMER PURCHASED A 2002 CHEVROLET 1 TON TRUCK IN 2003, EVER ONCE IN A WHILE IT HAS A COLD START. THIS BEGAN THE SAME MONTH THE VEHICLE WAS PURCHASED. FOUR TIMES SINCE DECEMBER THE VEHICLE HAS BEEN TO DEALER WHO CAN NOT FIND OUT WHAT IS WRONG WITH THE VEHICLE, BUT STARTS BACK AND QUITS OFTEN ON ROAD. HAS BEEN TOWED, WHICH GMC HAS REIMBURSED BUT NOT REPAIRED. THIS VEHICLE IS USED FOR WORK. COLD WEATHER RELATED, 30+ DEGREES NO PROBLEMS.*AK
NHTSA ODI #10118860
Mileage unknown · Sep 28, 2004
Service Brakes, Hydraulic
THE VEHICLE HAD SEVERAL MECHANICAL PROBLEMS TO INCLUDE THE EMERGENCY BRAKE, TRANSMISSION AND 4-WHEEL DRIVE. *NM THE CONSUMERS VEHICLE WAS PARKED ON A HILL AND THE EMERGENCY BRAKE FAILED CAUSING THE TRUCK TO ROLL OFF THE HILL. THE VEHICLE SUSTAINED 15000.00 DOLLARS WORTH OF DAMAGE. CONSUMER CONTACTED THE DEALER AND CONTACT…
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THE VEHICLE HAD SEVERAL MECHANICAL PROBLEMS TO INCLUDE THE EMERGENCY BRAKE, TRANSMISSION AND 4-WHEEL DRIVE. *NM THE CONSUMERS VEHICLE WAS PARKED ON A HILL AND THE EMERGENCY BRAKE FAILED CAUSING THE TRUCK TO ROLL OFF THE HILL. THE VEHICLE SUSTAINED 15000.00 DOLLARS WORTH OF DAMAGE. CONSUMER CONTACTED THE DEALER AND CONTACTED CHEVROLET BUT TO NO AVAIL BECAUSE THEY WILL NOT TAKE RESPONSIBILITY FOR THE DAMAGES. THE MECHANICS AT CHEVROLET STATED THAT THE EMERGENCY BRAKE IS DEFECTIVE BUT NO MECHANICAL DEFECTS. THE CONSUMERS VEHICLE IS UNDRIVABLE. *TC
NHTSA ODI #10095421
40,639 miles · Jul 1, 2004
EquipmentTires
WHILE DRIVING MY 2002 CHEVY SILVERADO 3500, WITH APPROX 41000 MILES ON THE ODOMETER, THE SPARE TIRE FELL OFF FROM UNDER THE TRUCK BED AND WENT SKIDDING DOWN THE HIGHWAY. THE STEEL CABLE THAT WAS HOLDING THE SPARE TIRE WAS OBSERVED TO BE SHREDDED. I WAS DRIVING AT APPROX. 35 MILES AN HOUR ON A FLAT HIGHWAY, UNDER NORMAL ROAD COND…
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WHILE DRIVING MY 2002 CHEVY SILVERADO 3500, WITH APPROX 41000 MILES ON THE ODOMETER, THE SPARE TIRE FELL OFF FROM UNDER THE TRUCK BED AND WENT SKIDDING DOWN THE HIGHWAY. THE STEEL CABLE THAT WAS HOLDING THE SPARE TIRE WAS OBSERVED TO BE SHREDDED. I WAS DRIVING AT APPROX. 35 MILES AN HOUR ON A FLAT HIGHWAY, UNDER NORMAL ROAD CONDITIONS WHEN THIS OCCURRED. THE SPARE TIRE HAS NEVER BEEN SERVICED OR MOVED AND WAS PUT IN PLACE AT THE FACTORY. THIS FAILURE OF THE STEEL CABLE THAT HOLDS THE SPARE TIRE ALMOST RESULTED IN A SERIOUS ACCIDENT. I CONTACTED THE CHEVY DEALER (BILL KOENIG CHEVROLET IN PORT ANGELS WA) AND THE SERVICE DEPARTMENT INDICATED THAT THIS FAILURE WAS NOT A RECALL ISSUE AND DECLINED TO REPAIR UNDER WARRANTY. CLEARLY, THIS FAILURE POSES A SERIOUS TRAFFIC SAFETY ISSUE AND NEEDS TO BE INVESTIGATED AND ADDRESSED. *NM
NHTSA ODI #10079144
NHTSA investigations
2EA04012 · 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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