IllustrationTIRE TREAD SEPARATION. *AK
2000 Chevrolet Silverado 3500
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2000 Chevrolet Silverado 3500 do not stand out strongly from the model-year median of 35.
About this comparison →How this year compares
Owner complaints by model year
Compare all Silverado 3500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
110–25K
825–50K
750–75K
575–100K
6100–150K
1150K+
38 reports with mileage · 42 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes, Hydraulic. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Tires. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports1 fire reports2 injury reports
What owners actually said
80 reportsTIRE TREAD SEPARATION. *AK
I PURCHASED A NEW 2000 CHEVY 3500 4 DOOR DULLY. IT NOW HAS 67,000 MILES. THE TRUCK HAS WORN OUT SEVEN SETS OF BRAKES AND AT THIS MOMENT IT NEEDS THE 8TH SET PLUS THE FRONT ROTORS ARE CRACKED FROM EXCESSIVE HEAT AND NEED TO BE REPLACED. EVEN WITH NEW BRAKE PADS THE TRUCK WILL NOT STOP AS IT SHOULD YOU MUST DRIVE IT LIKE YOUR DRI…
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I PURCHASED A NEW 2000 CHEVY 3500 4 DOOR DULLY. IT NOW HAS 67,000 MILES. THE TRUCK HAS WORN OUT SEVEN SETS OF BRAKES AND AT THIS MOMENT IT NEEDS THE 8TH SET PLUS THE FRONT ROTORS ARE CRACKED FROM EXCESSIVE HEAT AND NEED TO BE REPLACED. EVEN WITH NEW BRAKE PADS THE TRUCK WILL NOT STOP AS IT SHOULD YOU MUST DRIVE IT LIKE YOUR DRIVING IN SNOW. I SELDOM DRIVE IT OVER 55 MILES PER HOUR UNLESS I AM ON THE OPEN ROAD WITH NO CARS IN SIGHT. I HAVE HAD NO ACCIDENTS JUST SEVERAL CLOSE CALLS. BUT THAT IS A RESULT ONLY OF MY DEFENSIVE DRIVING HABITS. I PURCHASED THIS TRUCK FOR HEAVY HAULING BUT THE TRUCK WON'T STOP ITSELF MUCH LESS A LOADED TRAILER. THE DEALER WAS HAPPY TO PUT NEW BRAKES ON AS LONG AS THE GENERAL WAS PAYING THE BILL BUT NOW THAT THE 3 YEARS 36,000 HAS EXPIRED IT'S JUST ME AND MY CHECK BOOK. *LA
THE FRAME WAS CRACKING AROUND THE FRONT WHEELS. THE VEHICLE WAS TAKEN TO THE DEALER WHO SAW THE CRACKS BUT COULD NOT DETERMINE WHAT CAUSED THE CRACKS. THE INSURANCE COMPANY TOOK PICTURES AND DETERMINED THAT THE VEHICLE DID NOT HIT ANYTHING TO CAUSE THE CRACKS IN THE FRAME. *NM THE CONSUMER USES THE VEHICLE AS A TRASH TRUCK…
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THE FRAME WAS CRACKING AROUND THE FRONT WHEELS. THE VEHICLE WAS TAKEN TO THE DEALER WHO SAW THE CRACKS BUT COULD NOT DETERMINE WHAT CAUSED THE CRACKS. THE INSURANCE COMPANY TOOK PICTURES AND DETERMINED THAT THE VEHICLE DID NOT HIT ANYTHING TO CAUSE THE CRACKS IN THE FRAME. *NM THE CONSUMER USES THE VEHICLE AS A TRASH TRUCK. HE REPLACES THE VEHICLES PARTS FREQUENTLY BECAUSE OF THE AMOUNT OF WEAR THE VEHICLE SUSTAINS. THE CONSUMER FEELS THE FRAME SHOULD NEVER HAVE CRACKED. *NM
I HAVE HAD 6 TIRES REPLACED ON THIS VEHICLE DUE TO TIRE SEPARATION. TWO CAUSED BODY DAMAGE CHEVROET REPLACE 2 TIRES UNDER WARRANTY FOR OUT OF ROUND AT APPROX 1000 MILES. (11/2000) I REPLACED THE LEFT FRON APR 18000 MILES WITH NO DAMAGE. THE RT FRONT CAUSE 1200 IN DAMAGE TO THE RT FENDER IN 2002 AND THE RT REAT CAUSE DAMAGE TO T…
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I HAVE HAD 6 TIRES REPLACED ON THIS VEHICLE DUE TO TIRE SEPARATION. TWO CAUSED BODY DAMAGE CHEVROET REPLACE 2 TIRES UNDER WARRANTY FOR OUT OF ROUND AT APPROX 1000 MILES. (11/2000) I REPLACED THE LEFT FRON APR 18000 MILES WITH NO DAMAGE. THE RT FRONT CAUSE 1200 IN DAMAGE TO THE RT FENDER IN 2002 AND THE RT REAT CAUSE DAMAGE TO THE REAR OUTER FENDER 1500 IN DAMAGE IN APRIL 2004. GENERAL TIRE DID SEND A CHECK TO REPAIR THE DAMAGE IN WHICH I AM THANKFUL. HOWEVER I RECIEVED THE REIMBURSMENT CHECK ON 6/30/04 CLAIM#4117006. I WAS DRIVING HOME 7/1/04 AND NOTICED A VIBRATION AGAIN. ON 7/3/04 I FOUND YET ANOTHER TIRE SEPERATING SEE FILE #75617. I AM VERY UNHAPPY THAT MY VEHICLE IS BEING DAMAGED FROM THESE TIRES LET ALONE THE INCONVEANCED OF TIME FROM WORK AND RENTAL CAR EXPLENCE. I THING CONTENINTAL TIRE SHOULD REPALCE ALL OF THESE TIRES WITH SOME THING ELSE. AS IT SEAMS TO BRING BACK MEMORIES OF AN OTHER COMPANY (FIRESTONE) I AM VERY FORTUNET THAT NO INJURYS HAVE OCURED FROM THESE TIRE CONSERNS. THE DATE OF THE INCIDENT IS THE LAST TIRE CONCERN TO DATE.*AK
WHILE DRIVING 5 MPH THE RIGHT FRONT OF THE VEHICLE COLLASPED. THE TIE ROD AND BALL JOINT FAILED. *AK *JB
CONSUMER STATES VEHICLE PULLS TO THE RIGHT AND LEFT WHEN BRAKING, IN ADDITION, THERE WAS A RATTLE NOISE IN THE LEFT FRONT END WHEN GOING OVER BUMPS. *LA THE LEFT REAR TAIL LIGHT BULB WAS INOPERATIVE. THE LEFT FRONT WHEEL COVER CAME OFF. THE TAIL PIPE MADE A RATTLE NOISE, THE DEALER REPLACED THE TAIL PIPE. THE FOG LIGHT BUL…
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CONSUMER STATES VEHICLE PULLS TO THE RIGHT AND LEFT WHEN BRAKING, IN ADDITION, THERE WAS A RATTLE NOISE IN THE LEFT FRONT END WHEN GOING OVER BUMPS. *LA THE LEFT REAR TAIL LIGHT BULB WAS INOPERATIVE. THE LEFT FRONT WHEEL COVER CAME OFF. THE TAIL PIPE MADE A RATTLE NOISE, THE DEALER REPLACED THE TAIL PIPE. THE FOG LIGHT BULB WAS INOPERATIVE. THE FRONT BRAKES MADE A GRINDING NOISE WHEN THEY WERE APPLIED. THE AIR CONDITION WAS NOT COOLING PROPERLY. THE WOOD TRIM ON THE DASH WAS LOOSE. THE RIGHT REAR AXLE SEAL LEAKED. THE PLASTIC COMPARTMENT ABOVE THE GLOVE BOX WAS CRACKED. THE BASE OF THE WINDSHIELD WAS CRACKED. *JB
WHILE PULLING INTO THE DRIVEWAY BRAKES AND STEERING SIMULTANEOUSLY FAILED. EMERGENCY BRAKE HAD TO BE USED TO STOP THE TRUCK. THIS FAILURE WAS CAUSED BY THE STEERING SHAFT BREAKING. DEALERSHIP REPLACED STEERING SHAFT BUT THE PROBLEM RECURRED WITHIN THE NEXT 15,000 MILES WHILE DRIVING AT 25-35 MPH. *AK
2000 CHEVY K3500,I HAVE HAD 5 TIRES REPLACED UNDER WARRANTY TREAD SEPERATION. NONE OF THEM HAD THE TREAD COME COMPLETELY OFF DUE TO THE FACT THAT I AM A SHOP FOREMAN/TECHNICIAN WITH 25 YEARS IN THE BUSINESS AND MAINTAIN MY VEHICLE RELIGIOUSLY. PRESSURE WAS ADJUSTED TO 65 FRONT AND REAR WHEN TOWING. 65 FRONT AND 50 REAR WHEN USI…
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2000 CHEVY K3500,I HAVE HAD 5 TIRES REPLACED UNDER WARRANTY TREAD SEPERATION. NONE OF THEM HAD THE TREAD COME COMPLETELY OFF DUE TO THE FACT THAT I AM A SHOP FOREMAN/TECHNICIAN WITH 25 YEARS IN THE BUSINESS AND MAINTAIN MY VEHICLE RELIGIOUSLY. PRESSURE WAS ADJUSTED TO 65 FRONT AND REAR WHEN TOWING. 65 FRONT AND 50 REAR WHEN USING AS A DAILY DRIVER. NONE OF THESE TIRES HAD PUNCTURE REPAIRS DURING THIER USE. THEY ALL SEPERATED IN THE EXACT SAME PLACE, THE OUTSIDE TWO ROWS OF TREAD IS WERE IT WOULD START. FRONT OR BACK IT DIDNT MATTER. THE TRUCK WOULD DEVELOPE A VIBRATION AND I WOULD BRING IT IN AND HAVE THE TIRES CHECKED.THEY WERE AMERITRAC 550 AS 245/75R16. I HAVE WITTNESSED MANY TIRES OF THIS SIZE AND BRAND DEVELOPE THE EXACT SAME CONDITION AND MANY OF THEM WILL BLOWOUT AND DAMAGE THE VEHICLES SEVERLY. I FINALLY REPLACED ALL OF THEM WITH A DIFFERENT BRAND BECAUSE I DIDNT FEEL CONFIDENT THAT THEY WERE SAFE TO TRAVEL OUT OF TOWN ON. I RETAINED THE TIRES THAT CAME OFF WITH THE EXCEPTION OF THE ONE THAT HAD SEPERATED FOR THE LAST TIME. I WORK FOR ONE OF THOUSANDS OF GM DEALERS ACROSSED THE COUNTRY AND I AM SHOCKED AT THE NUMBER OF TIRES THAT WE SEE WITH DEFECTS. MY CURRENT POSITION IS SHOPFOREMAN AND YES I AM IN CHARGE OF THE TIRE DEPARTMENT. THE OTHER BRAND THAT I SEE ALOT OF WITH COMPLETE TREAD SEPERATION AND THE TIRE IS STILL HOLDING AIR IS THE FIRESTONE STEELTEX 245/75R16. I AM NOTE SURE HOW ALL THE POLITICS WORK BETWEEN THE TIRE MAN. AND THE AUTO MAN. BUT IT SURE SEEMS THAT ALOT OF THIS MUST BE GOING UNCHECKED BY THE AGENCIES THAT ARE REGULATING DEFECTS. I WRITE AS A CONCERNED CITIZEN.*AK
THE STEERING LINKAGES FAILED WHILE DRIVING. AS A RESULT, VEHICLE PRODUCED A VIOLENT SHAKING MOTION. RECAL 00V054000 WAS ISSUED; HOWEVER, THIS VEHICLE WAS NOT INCLUDED DUE TO VIN. *AK
Official recalls
100V054000 · Steering:linkages:drag:link:connection
Feb 28, 2000
VEHICLE DESCRIPTION: CHASSIS CABS. THE TAPERED HOLE IN THE DRAG LINK END THAT ATTACHES TO THE PITMAN ARM TAPERED BALL STUD MAY BE MACHINED TOO DEEP CAUSING THE HOLE TO BE OVERSIZED. A DRAG LINK WITH AN OVERSIZED HOLE MAY NOT "SEAT" THE PITMAN ARM TAPERED BALL WHEN ASSEMBLED. THIS COULD CAUSE HIGHER THAN NORMAL FRICTION BETWEEN COMPONENTS DURING OPERATION, AND POSSIBLY RESULT IN JOINT SEPARATION OR A BROKEN BALL STUD.
Consequence & remedy
Consequence: IF THE JOINT SEPARATED OR THE BALL STUD BRAKE WHILE THE VEHICLE WAS MOVING, STEERING CONTROL WOULD BE LOST.
Remedy: DEALERS WILL INSPECT THE STEERING LINKAGE ASSEMBLY AND, IF NECESSARY, REPLACE THE DRAG LINK AND THE PITMAN ARM.
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
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.