2001 Chevrolet Silverado 3500

IN A LETTER DATED NOVEMBER 7, 2007, GENERAL MOTORS (GM) REPORTED TO THE OFFICE OF DEFECTS INVESTIGATION (ODI) THAT IT WILL CONDUCT A SAFETY RECALL (07V-521) TO REPLACE THE CRANK POSITION SENSOR (CKP) IN APPROXIMATELY 12,000 MODEL YEAR (MY) 2001 CHEVROLET SILVERADO AND GMC SIERRA VEHICLES EQUIPPED WITH 8.1 LITER ENGINES MANUFACTURED ON OR BEFORE NOVEMBER 15, 2000.ACCORDING TO GM, THE CKP CAN FAIL INTERMITTENTLY OR PERMANENTLY.A PERMANENT CKP FAILURE WOULD RESULT IN AN ENGINE STALL WITHOUT RESTART.AN INTERMITTENT CKP FAILURE COULD CAUSE THE SERVICE ENGINE SOON LIGHT TO ILLUMINATE, THE VEHICLE TO RUN ROUGH OR THE ENGINE TO STALL BUT ALLOWS RESTART.AS A REMEDY, AN IMPROVED CKP WILL BE INSTALLED IN THE SUBJECT VEHICLES.THE RECALL CAMPAIGN WILL START IN DECEMBER 2007. DURING THE PRELIMINARY EVALUATION (PE06-016), AND THIS EA INVESTIGATION, GM AND ODI INDEPENDENTLY CONDUCTED DETAILED REVIEWS OF CERTAIN FIELD DATA TO UNDERSTAND THE NATURE AND RATE OF SUBJECT VEHICLE STALLING DUE TO CKP FAILURES.GM AND ODI REVIEWED GM'S WARRANTY CLAIMS FOR THE CKP WITH THE OBJECTIVE OF ASCERTAINING AN ESTIMATE OF THOSE CLAIMS REPRESENTING AN ENGINE STALL WHILE DRIVING.THE CKP WARRANTY CLAIMS WITHOUT VERBATIM TEXT WERE THE LARGEST SEGMENT OF WARRANTY CLAIMS.USING THOSE CLAIMS, GM SURVEYED VEHICLE OWNERS TO GATHER ADDITIONAL INFORMATION TO DETERMINE IF THE CLAIM WAS ASSOCIATED WITH A STALL WHILE DRIVING EVENT.BASED ON THE SURVEY, GM ESTIMATED THAT APPROXIMATELY 49% OF ALL WARRANTY REPAIRS FOR THE CKP INVOLVED A STALL WHILE DRIVING.ODI?S REVIEW OF GM'S SURVEY DATA PRODUCED A HIGHER ESTIMATE (71%) FOR STALL WHILE DRIVING.GM FURTHER ESTIMATED THE RATE OF STALL WHILE DRIVING FOR THE SUBJECT VEHICLES OVER TIME.IT ESTIMATED STALLING WHILE DRIVING RATES OF 1.6%, 4.6% AND 8.9% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY.ODI'S REVIEW OF THE GM'S SURVEY DATA FINDS HIGHER ESTIMATED STALL WHILE DRIVING RATES OF 2.2%, 6.8% AND 13% AT 1, 3 AND 6 YEARS IN SERVICE RESPECTIVELY. ODI ALSO CONDUCTED A SURVEY OF VEHICLE OWNERS USING CONSUMER COMPLAINTS REPORTED TO BOTH ODI AND GM.THE OBJECTIVE WAS TO ASCERTAIN THE POTENTIAL SAFETY CONSEQUENCES OF AN ENGINE STALL DUE TO THE ALLEGED DEFECT.WITH RESPECT TO THE ABILITY TO RESTART THE VEHICLE AFTER A STALL, 11% REPORTED IMMEDIATE RESTART, 69% REPORTED DELAYED RESTART AND 20% REPORTED NO RESTART.OVER HALF NOTED AT LEAST ONE ENGINE STALL INCIDENT AT SPEEDS IN EXCESS OF 40MPH. ABOUT ONE-THIRD NOTED THE VEHICLE WAS STRANDED EITHER PARTIALLY OR FULLY IN A LANE OF TRAFFIC AFTER THE ENGINE STALL.ALL OF THE CONSUMERS SURVEYED NOTED MULTIPLE STALLING EVENTS PRIOR TO PROPER DIAGNOSIS AND REPLACEMENT OF THE CKP.BASED ON GM'S DECISION TO CONDUCT A SAFETY RECALL, THIS INVESTIGATION IS CLOSED.

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.

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.

Front right brake overheated.

NHTSA ID

11613397

Incident

Sep 5, 2024

While driving engine cuts off intermittently, usually will restart. This is caused by the Crank position sensor. Once replaced, the issue was resolved. This vehicle was NOT covered by NHTSA recall 07U521000.

NHTSA ID

11533991

Incident

May 20, 2023

TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 3500. WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE STALLED WITHOUT WARNING IN THE MIDDLE OF THE FREEWAY. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER A FEW ATTEMPTS. THE CONTACT STATED THAT THE FAILURE OCCURRED ON SEVERAL OCCASIONS. THE DEALER (F.H. DAILEY CHEVROLET, 800 DAVIS ST, SAN LEANDRO, CA 94577) STATED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 07V521000 (ENGINE). THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 33,000.

NHTSA ID

11090163

Incident

Jul 1, 2015

Mileage

33,000 mi

TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 3500. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING AND WAS UNABLE TO BE DRIVEN. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO REPLACED THE CRANK SHAFT POSITION SENSOR. THE CONTACT WAS NOT INCLUDED IN NHTSA ACTION NUMBER: EA06016 (ENGINE AND ENGINE COOLING). THE MANUFACTURER INDICATED THAT THE VEHICLE WAS EXCLUDED FROM A MANUFACTURER RECALL AND PROVIDED NO SOLUTION. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 49,376.

NHTSA ID

10979675

Incident

Apr 18, 2017

Mileage

49,376 mi

THE DIMMER SWITCH FOR INTERIOR LIGHTING IS PRONE TO FAILURE. WHEN IT FAILS, ALL DASH AND GAUGE CLUSTER ILLUMINATION WILL CEASE TO FUNCTION, CAUSING DANGEROUS DRIVING CONDITIONS AFTER DARK. THE DRIVER WILL NOT BE ABLE TO SEE ANY GAUGES OR CLIMATE CONTROL FEATURES, WHICH MAY CAUSE A CRASH.

NHTSA ID

10978652

Incident

Apr 10, 2017

Mileage

156,000 mi

MY 2001 CHEVY ONE TON SILVERADO PICK-UP WITH 90,000 MILES ON IT , HAS MAJORLY RUSTED OUT BRAKE LINES. WHILE DRIVING DOWN THE ROAD, I BLEW A BRAKE LINE. WHEN I LOOKED TO SEE WHAT LINE IT WAS,I WAS AMAZED AT HOW BADLY ALL THE LINES WERE RUSTED. MY MECHANIC QUOTED ME LIKE $ 1400 DOLLARS TO REPLACE ALL OF THE LINES,AND GUARANTEE HIS WORK. I UNDERSTAND THAT ALL GM TRUCKS FROM 2000 TO 2009 HAD THIS MAJOR PROBLEM . I HAVE FOUND AN AFTER MARKET LINE KIT FOR $ 280 WITH ABOUT 3 DAYS LABOR FOR A DIY GUY.

NHTSA ID

10955530

Incident

Feb 3, 2017

Mileage

90,000 mi

BRAKES FAILED. RUPTURED BRAKE LINE & BARELY AVOIDED ACCIDENT. ON A STREET, VEHICLE MOVING.

NHTSA ID

10875275

Incident

Jun 10, 2016

Mileage

80,000 mi

BRAKE LINE RUPTURED WHILE TOWING LOAD. 76000 MILES ON THE TRUCK. I HAVE OWNED THIS TRUCK SINCE 2004 AND HAVE PARKED IT INSIDE SINCE OWNING IT. ANNUAL INSPECTION AND MAINTENANCE ON DRIVE TRAIN BY MECHANIC. NO WARNING THAT THE BRAKES WOULD FAIL. BRAKE LINE OVER REAR AXLE LEAKING FLUID. HAD THE BOAT/TRAILER TOWED HOME BY FRIEND AND TOOK TRUCK TO REPAIR SHOP FOR REPAIR.

NHTSA ID

10784936

Incident

Sep 26, 2015

Mileage

76,700 mi

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.