NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
50 reportsMileage unknown · Jul 20, 2011
Service Brakes, Hydraulic
S10 APPROPRIATE HANDLING -COPY OF A LETTER TO THE PRESIDENT RE THE DANGERS OF RUPTURING BRAKE LINES ON A 2002 CHEVROLET SILVERADO 3500. *TGW THE CONSUMER STATED THE VEHICLE NEEDED FRONT BRAKE PADS, ROTORS WHICH WERE MORE RUSTED OUT THAN WORN AND ONE CALIPER. AS THE CONSUMER WAS BLEEDING THE AIR FROM THE HYDRAULIC CIRCUIT, HE …
Read full complaint
S10 APPROPRIATE HANDLING -COPY OF A LETTER TO THE PRESIDENT RE THE DANGERS OF RUPTURING BRAKE LINES ON A 2002 CHEVROLET SILVERADO 3500. *TGW THE CONSUMER STATED THE VEHICLE NEEDED FRONT BRAKE PADS, ROTORS WHICH WERE MORE RUSTED OUT THAN WORN AND ONE CALIPER. AS THE CONSUMER WAS BLEEDING THE AIR FROM THE HYDRAULIC CIRCUIT, HE NOTICED BRAKE FLUID POURING OUT OF THREE LOCATIONS ON THE DRIVER'S SIDE. THE STEEL BRAKE LINES HAD RUPTURED ON BOTH HYDRAULIC CIRCUITS DUE TO THE STEEL LINES RUSTING OUT. THE CONSUMER REPLACED ALL OF THE STEEL LINES, AS SOME OF THE RUST WAS HIDDEN FROM VIEW WITHIN PLASTIC RETAINERS. *JB
NHTSA ODI #10414353
Mileage unknown · May 16, 2011
Tires
ON SUNDAY MAY THE 15TH THE WALMART TLE ON BUSH RIVER RD IN COLUMBIA SC INSTALLED TWO FRONT TIRES ON A 2002 CHEVY 3500 VAN. THEY INSTALLED TWO P RATED TIRES EVEN THOUGH THE VEHICLE CALLS FOR LT. THEY ALL SO PUT 55PSI IN THE TIRES WHEN THE TIRES ARE ONLY RATED FOR 44PSI. THE TIRES ARE NOT RATED FOR THIS. ALSO THERE WAS NO DOT CARD…
Read full complaint
ON SUNDAY MAY THE 15TH THE WALMART TLE ON BUSH RIVER RD IN COLUMBIA SC INSTALLED TWO FRONT TIRES ON A 2002 CHEVY 3500 VAN. THEY INSTALLED TWO P RATED TIRES EVEN THOUGH THE VEHICLE CALLS FOR LT. THEY ALL SO PUT 55PSI IN THE TIRES WHEN THE TIRES ARE ONLY RATED FOR 44PSI. THE TIRES ARE NOT RATED FOR THIS. ALSO THERE WAS NO DOT CARD GIVEN OUT. *TR
NHTSA ODI #10401172
80,000 miles · May 5, 2011
Service Brakes, Hydraulic
HUSBAND PERFORMED OIL CHANGE ON TRUCK. TRUCK IS DRIVEN INFREQUENTLY, ONLY USED FOR TOWING MY HORSE TRAILER, SO OIL IS ONLY CHANGED ABOUT ONCE A YEAR, AND TRUCK IS GARAGE KEPT. WHEN UNDERNEATH TRUCK, HUSBAND NOTICED THAT ALL BRAKE LINES FEEDING INTO THE ABS UNIT ARE SEVERELY CORRODED AND COULD FAIL AT ANY TIME. BASED ON CONDIT…
Read full complaint
HUSBAND PERFORMED OIL CHANGE ON TRUCK. TRUCK IS DRIVEN INFREQUENTLY, ONLY USED FOR TOWING MY HORSE TRAILER, SO OIL IS ONLY CHANGED ABOUT ONCE A YEAR, AND TRUCK IS GARAGE KEPT. WHEN UNDERNEATH TRUCK, HUSBAND NOTICED THAT ALL BRAKE LINES FEEDING INTO THE ABS UNIT ARE SEVERELY CORRODED AND COULD FAIL AT ANY TIME. BASED ON CONDITION OF BRAKE LINES, HUSBAND (A MECHANIC) FEELS ABS UNIT IS PROBABLY FULL OF RUST AS WELL. ENTIRE BRAKING SYSTEM MAY BE COMPROMISED AND FULL OF RUST. TRUCK WILL NOT BE SAFE TO DRIVE UNTIL BRAKE LINES ARE REPLACED, AND POTENTIALLY ENTIRE BRAKING SYSTEM IS OVERHAULED. CALLED DEALERSHIP, THEY REFUSED TO DO ANYTHING BECAUSE THE TRUCK IS OUT OF WARRANTY. WE HAVE CONTACTED CHEVROLET DIRECTLY AND ARE AWAITING A RETURN PHONE CALL. MY HUSBAND HAS 30 AND 40 YEAR OLD CARS AT HOME THAT HAVE CLEANER ORIGINAL BRAKE LINES THAN OUR 10 YEAR OLD TRUCK DOES.
NHTSA ODI #10400098
34,000 miles · May 2, 2011
Engine And Engine Cooling
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 3500. THE CONTACT STATED THE VEHICLE WOULD SHUT DOWN WITHOUT WARNING. THERE WAS NO INDICATION THAT THE VEHICLE WAS SHUTTING OFF, BUT THE VEHICLE WOULD START BACK UP WITHIN A FEW MINUTES. THE CONTACT REPLACED THE FUEL FILTER AND HAD THE FUEL SYSTEM CHECKED, BUT NONE OF THE REPAIRS C…
Read full complaint
TL*THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 3500. THE CONTACT STATED THE VEHICLE WOULD SHUT DOWN WITHOUT WARNING. THERE WAS NO INDICATION THAT THE VEHICLE WAS SHUTTING OFF, BUT THE VEHICLE WOULD START BACK UP WITHIN A FEW MINUTES. THE CONTACT REPLACED THE FUEL FILTER AND HAD THE FUEL SYSTEM CHECKED, BUT NONE OF THE REPAIRS CORRECTED THE FAILURE. THE CONTACT FOUND NHTSA CAMPAIGN ID NUMBER: 01V521000 (ENGINE AND ENGINE COOLING), DEALING WITH THE CRANKSHAFT POSITION SENSOR FOR THE 2001 MODEL YEAR AND INDICATED THAT THE 2002 MODEL YEAR HAD THE IDENTICAL FAILURE. THE FAILURE MILEAGE WAS 34,000 AND THE CURRENT MILEAGE WAS 35,000. UPDATED 5/24/11 *CN THE CONSUMER STATED HE REPLACED THE CRANKSHAFT POSITION SENSOR AT HIS EXPENSE. UPDATED 06/06/11
NHTSA ODI #10398494
30,000 miles · Oct 1, 2010
Visibility
TL*THE CONTACT OWNS A 2002 CHEVROLET 3500 . THE CONTACT STATED THAT THE REAR WINDOWS ON BOTH SIDES FELL OUT ON THE ROAD AT DIFFERENT TIMES. THE DEALER WAS NOT NOTIFIED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT STATED THAT THE WINDOWS WERE MANUFACTURED BY C. R. LAURENCE COMPANY IN HOUSTON TEXAS. THE CURRENT MILEAGE WAS 30,000.…
Read full complaint
TL*THE CONTACT OWNS A 2002 CHEVROLET 3500 . THE CONTACT STATED THAT THE REAR WINDOWS ON BOTH SIDES FELL OUT ON THE ROAD AT DIFFERENT TIMES. THE DEALER WAS NOT NOTIFIED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT STATED THAT THE WINDOWS WERE MANUFACTURED BY C. R. LAURENCE COMPANY IN HOUSTON TEXAS. THE CURRENT MILEAGE WAS 30,000.
NHTSA ODI #10358716
40,000 miles · Sep 28, 2010
Service Brakes, Hydraulic
ANTI-LOCK BRAKING SYSTEM CONSISTENTLY ENGAGES WHEN AT SLOW-SPEED STOPPING (5-8 MPH). PROBLEM STARTED AT THE 40,000 MILE MARK. DEALER INFORMED THAT THERE IS A RECALL ON THE ISSUE BUT MY VIN DOES NOT QUALIFY. *TR
NHTSA ODI #10357983
62,000 miles · Jun 4, 2010
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 3500. THE CONTACT STATED WHEN AT SPEEDS OF AT LEAST 60 MPH SITTING IDLE AT A TRAFFIC STOP, THE VEHICLE WOULD STALL WITHOUT WARNING. WHEN THE FAILURE WOULD OCCUR, THE VEHICLE WOULD LOSE POWER STEERING AND BRAKING POWER AS HE WOULD COAST TO THE SIDE OF THE ROADWAY. THE CONTACT WOULD …
Read full complaint
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 3500. THE CONTACT STATED WHEN AT SPEEDS OF AT LEAST 60 MPH SITTING IDLE AT A TRAFFIC STOP, THE VEHICLE WOULD STALL WITHOUT WARNING. WHEN THE FAILURE WOULD OCCUR, THE VEHICLE WOULD LOSE POWER STEERING AND BRAKING POWER AS HE WOULD COAST TO THE SIDE OF THE ROADWAY. THE CONTACT WOULD BE ABLE TO RESTART THE VEHICLE AND ON OCCASION, IT WOULD TAKE SEVERAL ATTEMPTS. THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE AND THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER FILED A CLAIM FOR THE CONTACT BUT WOULD NOT PROVIDE ANY IMMEDIATE ASSISTANCE. THE FAILURE MILEAGE WAS 62,000 AND THE CURRENT MILEAGE IS 69,976. THE CONSUMER STATED SINCE THE REPORT WAS FILED, HE HAD THE CRANK SENSOR REPLACED AND IT ELIMINATED THE PROBLEM. UPDATED EVOQ 10/22/10
NHTSA ODI #10334547
Mileage unknown · Feb 23, 2010
Service Brakes, HydraulicSteering
HYDRAULIC:ANTILOCK DURING LOW-SPEED BRAKE APPLICATIONS THE BRAKES PUSH BACK AND DON'T NOT STOP THE TRUCK THE POWER STEERING ALSO CUTS OUT WHEN THIS HAPPENS. *TR
NHTSA ODI #10313032
87,000 miles · Dec 28, 2009
Engine And Engine CoolingFuel System, Gasoline
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 2500. THE FUEL INJECTOR THAT CONNECTS TO THE MOTOR HAS FAILED. THE VEHICLE DEALER AND MANUFACTURER WERE NOTIFIED. HE WAS ADVISED TO THAT HE WOULD HAVE TO BEAR THE EXPENSE OF THE REPAIR. THE FAILURE MILEAGE WAS 87,000. UPDATED 2/17/10 *CN UPDATED 02/22/10
NHTSA ODI #10297122
135,000 miles · Dec 22, 2009
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2002 CHEVROLET SILVERADO 3500. THE FRONT BRAKE SENSOR HAS FAILED BECAUSE OF CORROSION. THE VEHICLE WAS TAKEN TO THE DEALER AND HE WAS ADVISED THAT SINCE THE WARRANTY EXPIRED NO ASSISTANCE WOULD BE PROVIDED. THE FAILURE MILEAGE WAS 135,000.
NHTSA ODI #10296662
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.
Illustration