Technical Service Bulletins (TSBs) for the 1994 Blazer are official communications between Chevrolet & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    SUSPENSION:FRONT

    • TSB #02015

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10006961

      POP SNAP NOISE IN THE FRONT SUSPENSION WHEN BRAKING. *MR Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

    • TSB #240699

      Date Announced:
      JUL 24, 1999
      NHTSA ID:
      #608382

      SUBJECT REGARDING ABS 3-SENSOR EBC4 - SPECIAL POLICY. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

    • TSB #130089009

      Date Announced:
      SEP 01, 2013
      NHTSA ID:
      #10246631

      Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

    • TSB #96067A

      Date Announced:
      JUN 01, 1997
      NHTSA ID:
      #52576

      SPECIAL POLICY ADJUSTMENT - LINEAR EXHAUST GAS RECIRCULATION SYSTEM. *TW Read More »

    FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

    • TSB #566304

      Date Announced:
      AUG 01, 1995
      NHTSA ID:
      #45806

      FUEL TANK NOISE, FUEL GAGE INACCURATE, REDUCED FUEL CAPACITY.*SD Read More »

    FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

    • TSB #666309

      Date Announced:
      APR 01, 1997
      NHTSA ID:
      #52350

      ENGINE HARD TO START (REPLACE FUEL PUMP PULSATOR). *TW Read More »

    • TSB #566305

      Date Announced:
      AUG 01, 1995
      NHTSA ID:
      #45817

      VEHICLE DOES NOT START READILY UPON CRANKING (REPLACE FUEL PUMP RELAY). *SD Read More »

    POWER TRAIN

    • TSB #990730016A

      Date Announced:
      OCT 01, 2002
      NHTSA ID:
      #10007838

      DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT Read More »

    POWER TRAIN:CLUTCH ASSEMBLY

    POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

    • TSB #020730024A

      Date Announced:
      AUG 01, 2005
      NHTSA ID:
      #634999

      DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT Read More »

    ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH

    • TSB #468306

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #37934

      IMPROPERLY CONSTRUCTED INSTRUMENT CLUSTER CAUSING ERRATIC TEMPERATURE GAUGE READINGS. *TW Read More »

    ELECTRICAL SYSTEM:IGNITION:MODULE

    • TSB #676537

      Date Announced:
      JUN 01, 1997
      NHTSA ID:
      #52571

      INTERMITTENT HESTIATIONS, LOW POWER, AND ROUGH RUNNING ENGINE IN COLD TEMPERATURES (REPLACE PCM). *TW Read More »

    • TSB #476522

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39085

      BACKFIRE ON ACCELERATION. *TW Read More »

    VISIBILITY:WINDSHIELD WIPER/WASHER

    • TSB #568204

      Date Announced:
      AUG 01, 1995
      NHTSA ID:
      #45807

      WINDSHIELD WIPER BLADE CHATTER(REPLACE WIPER ARM AND BLADE). *SD Read More »

    STRUCTURE:BODY:HOOD

    • TSB #GM561204

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41076

      WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW Read More »

    LATCHES/LOCKS/LINKAGES:DOORS:LATCH

    • TSB #GM161514

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41072

      END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW Read More »

    VEHICLE SPEED CONTROL

    • TSB #GM569002

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41078

      STEPPER MOTOR CRUISE CONTROL WILL NOT RESUME OR RESET (REPLACE SMCC MODULE). *TW Read More »

    • TSB #576503

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #39816

      LIGHT SURGE AT HIGHWAY SPEEDS DURING LIGHT THROTTLE. *TW Read More »

    • TSB #576503

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #4075300

      UNKNOWN Read More »

    SEATS

    • TSB #761002

      Date Announced:
      MAR 01, 1997
      NHTSA ID:
      #52578

      CAB FLOOR CRACKED AT FRONT SEAT ANCHOR REINFORCEMENT SPOT WELDS (REPLACE REINFORCEMENT AND WELD FLOOR CRACKS). *TW Read More »

    EQUIPMENT

    • TSB #PIC4696D

      Date Announced:
      SEP 05, 2019
      NHTSA ID:
      #10165876

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #PIC4696C

      Date Announced:
      MAY 31, 2018
      NHTSA ID:
      #10141381

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Read More »

    EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES

    • TSB #PIC4696E

      Date Announced:
      NOV 22, 2019
      NHTSA ID:
      #10168979

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #PIC4696E

      Date Announced:
      NOV 22, 2019
      NHTSA ID:
      #10168979

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #PIC4696C

      Date Announced:
      MAY 31, 2018
      NHTSA ID:
      #10141381

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #PIC4696C

      Date Announced:
      MAY 31, 2018
      NHTSA ID:
      #10141381

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Read More »

    UNKNOWN OR OTHER