2001 Chevrolet Silverado 2500

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.

I was driving down the road and I heard a clunk. I lost all power and coasted into a farmers field. The dash board said lost power, nothing else. I had no warning. Oil pressure was where it should be until is quit. Keller Chevrolet contacted us and told us the engine blew. The connecting rod broke and the piston come apart. I had service done on my truck 4 days prior. I always service my vehicle every 3,000 miles or 3 months which ever comes first. I have about 121,000 miles on my 2001 pickup. It has always been serviced at either Bob Schmidt Chevrolet or Keller Chevrolet. We are in the process of getting a new engine from GM and having it installed at Keller Chevrolet. You can contact them for more information.

NHTSA ID

11696603

Incident

Oct 4, 2025

GEAR SELECTOR LIGHTS AND MILEAGE LIGHTS DONT ILLUMINATE ON DASH, INTERMITTENTLY.

NHTSA ID

11406156

Incident

Feb 16, 2019

Mileage

180,000 mi

TRUCK JUST SHUTS OFF WHILE DRIVING. AS IF THE KEY WAS TURNED OFF AND THEN WON'T TURN BACK ON. IT HAS HAPPEND 3 TIMES IN THE LAST 3 WEEKS WHERE I AM DRIVING AND IT COMPLETELY JUST SHUTS OFF. CAN'T GET IT TO START BACK UP AND HAVE TO TOW IT HOME, IT WILL THEN TURN ON AND RUN FOR A FEW DAYS AND SHUTS OFF WHILE DRIVING

NHTSA ID

11289779

Incident

Dec 17, 2019

Mileage

200,000 mi

I OWN A 2001 2500HD CHEVY SILVERADO AND LAST MONTH I HAD THE LEFT REAR STEEL BRAKE LINE RUPTURE AND AS A RESULT I LOST ALL BRAKING POWER. NEITHER THE BRAKE LIGHT COME ON AND THE PROPORTIONING VALVE DID NOT FUNCTION CORRECTLY DURING THIS MALFUNCTION SINCE FRONT BRAKES LOST ALL POWER. I WAS VERY FORTUNATE THAT THE ROAD WAS CLEAR, TRAFFIC WAS LIGHT AND THERE WERE NO PEDESTRIANS AROUND. THE PARKING BRAKE WORKED MARGINALLY SINCE I WAS CARRYING A LOAD OF WET SOIL HOME. I TRULY BELIEVE THIS IS A VERY SERIOUS DEFEAT WITH THIS GM TRUCK. THE VERY NEXT DAY I HAD THAT REAR LEFT BRAKE LINE REPLACED AND THE GARAGE TECHNICIAN SAID ALL THE REMAINING BRAKE LINES ARE IN A SIMILAR STATE. THANK YOU, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB

NHTSA ID

11052531

Incident

Nov 4, 2017

Mileage

204,000 mi

TL* THE CONTACT OWNS A 2001 CHEVROLET SILVERADO 2500 HD. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT HAD TO MAKE SEVERAL ATTEMPTS TO RESTART THE VEHICLE. THE MANUFACTURER STATED THAT THE VEHICLE WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 07V521000 (ENGINE AND ENGINE COOLING). THE MANUFACTURER PROVIDED NO RECOMMENDED SOLUTION OTHER THAN TAKING THE VEHICLE TO A DEALER FOR DIAGNOSTIC TESTING. THE VEHICLE WAS INSPECTED AND DIAGNOSED BY AN INDEPENDENT MECHANIC. THE FAILURE MILEAGE WAS NOT AVAILABLE.

NHTSA ID

10967695

Incident

Mar 21, 2017

CRANKSHAFT POSITION FAILED COMPLETELY.. THE VEHICLE STALLED WHILE DRIVING DOWN A MOUNTAIN PASS, WOULD NOT RE-START UNTIL AFTER IT COOLED DOWN. NO POWER STEERING OR POWER BRAKES WERE AVAILABLE DURING THIS TIME DUE TO ENGINE FAILURE. SAME ISSUE AS YOUR RECALL CAMPAIGN #07V521000 AND THE GM RECALL CAMPAIGN #06083

NHTSA ID

10966544

Incident

Mar 13, 2007

Mileage

36,041 mi

THE CRANKSHAFT POSITION SENSOR HAS FAILED THE VEHICLE RUNS ROUGH. THE ENGINE STALLS, MAY RE-START IMMEDIATELY OR AFTER A COOL DOWN PERIOD.

NHTSA ID

10966088

Incident

Mar 11, 2017

Mileage

83,500 mi

MY TRUCK ONLY HAS 61,000 MILES ON IT AND THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR ONE DAY ON MY WAY TO WORK. I CALLED THE DEALER AND THE PRICE TO FIX WAS $2,130.00 , I WATCHED A NEWS REPORT AND EVEN A SINGLE OWNER OF SIMILAR TRUCK WHO HAD IT WASHED EVERY WEEK HAD THE SAME PROBLEM. THE TRUCK SHOULD HAVE BEEN DESIGNED WITH A GUARD PROTECTING THE BRAKES.

NHTSA ID

10926091

Incident

Nov 2, 2016

Mileage

61,000 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.