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1998 Chevrolet Blazer TSBs

78 Technical Service Bulletins across 13 categories

Engine

13 bulletins
634218

SUBJECT REGARDING RUST IN COOLING SYSTEM, HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS (FLUSH COOLING SYSTEM).

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NLM

623086

SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR...

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THE COOLANT RESERVOIR HAS RUST IN IT. *TT

623034

SOME CUSTOMERS MAY COMMENT THAT THE SECURITY LAMP ILLUMINATES WHILE DRIVING; ENGINE CRANKS BUT WILL NOT START; AND / OR...

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THE ENGINE STARTS THEN STALLS AND THE SECURITY LAMP IS FLASHING. *TT

619740

SOME CUSTOMERS MAY COMMENT THAT THE SECURITY LAMP ILLUMINATES WHILE DRIVING; THE SECURITY LAMP MAY BE ON OR OFF; THE...

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SECURITY LAMP IS ILLUMINATED; THE ENGINE CRANKS BUT WILL NOT START AND THE SECURITY LAMP IS FLASHING; AND / OR THE ENGINE STARTS THEN STALLS AND THE SECURITY LAMP IS FLASHING. *TT

611277

SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR...

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THE COOLANT RESERVOIR HAS RUST IN IT. *TT

609717

SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR...

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THE COOLANT RESERVOIR HAS RUST IN IT. *TT

600192

SUBJECT ON STEERING LINKAGE IDLER ARM ATTACHING NUT UNDERTORQUED.

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*YC

600078

CONDITION WITH STEERING LINKAGE IDLER ARM ATTACHING NUT UNDERTORQUED.

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*YC

10139019

This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement...

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Concern.

10096073

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT AFTER A...

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TRANSMISSION OR TORQUE CONVERTER REPLACEMENT THE VEHICLE MAY HAVE A HARSH 1-2 UPSHIFT AND THE CHECK ENGINE LIGHT OR SERVICE ENGINE SOON INDICATOR IS ILLUMINATED. IF YOU HAVE DUPLICATED THE CUSTOMERS CONCERN AND FOUND DIAGNOSTIC TROUBLE CODE P0894 OR P1870 SET IN THE TRANSMISSION CONTROL MODULE PLEASE CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER.

10006363

4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE.

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SIT BULLETIN 1457619. *TT

10004371

RATTLE NOISE IN ENGINE.

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*TT

10004301

RATTLE NOISE IN ENGINE.

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*TT

Body & Paint

10 bulletins
634823

TECHNICAL INFORMATION - SOME CUSTOMERS MAY COMMENT THAT THE REAR PORTION OF THE ROOF HAS SOME RUST FORMING.

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*TT

629470

SOME CUSTOMERS MAY COMMENT THAT THE REAR PORTION OF THE ROOF HAS SOME RUST FORMING.

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*TT

628854

SUBJECT REGARDING REAR ROOF PERFORATION.

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*TT

628852

CONCERNS THAT THE REAR PORTION OF THE ROOF HAS SOME RUST FORMING.

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*TT

628512

SUBJECT REGARDING REAR ROOF PERFORATION (INSTALL NEW REAR ROOF SECTION) INCLUDING 1995-1997 GMC BLAZER.*JG

627489

INFORMATION REGARDING REAR ROOF PERFORATION.

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*YH

617784

CUSTOMER MAY COMMENT THAT THE REARVIEW MIRRORS, POWER DOOR LOCKS AND REAR HATCH DO NOT OPERATE.

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*TT

603166

VEHICLES EQUIPPED WITH A SUNROOF BUILT WITHIN CERTAIN VIN BREAKPOINTS MAY HAVE INSUFFICIENT REAR SEAT LIGHTING.

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*TT

10016473

WATER LEAK IN FRONT FLOOR CARPET AREA.

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GM TECH LINK. *TT

10002878

PARTS AVAILABILITY FOR SUNROOF REPAIRS.

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*TT

Fuel System

9 bulletins
634729

SOME CUSTOMERS MAY COMMENT ON AN EXHAUST BOOM / GROAN NOISE IN THE PASSENGER COMPARTMENT.

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*TT

628070

SOME VEHICLES MAY EXHIBIT AN EXHAUST NOISE, RATTLE NOISE AT 550 RPM.

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*TT

10208027

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

10171318

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

10157018

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

10137901

This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

10113443

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

10026704

GMC: FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL, CAUSING THE LOW FUEL LIGHT TO ILLUMINATE.

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*PE

10009382

FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL.

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*TT

Other

9 bulletins
634506

SUBJECT REGARDING GENERAL WATERLEAK GUIDE.

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*TT

625141

CUSTOMERS MAY COMMENT THAT THE SEAT RECLINER HANDLE IS STRIPPED.

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*JG

623792

INFORMATION REGARDING IMPROVED BUS SEAT DECLINER ASSEMBLIES, THE HANDLE ON THE RECLINER ASSEMBLY IS ATTACHED WITH A...

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NUMBER 20 TORQUE WITH A SHANK LENGTH OF 20 MILLIMETERS. *SLC

619027

SUBJECT REGARDING THE NEW RECLINCER ASSEMBLY.

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*TT

10020462

CLUNK NOISE FELT THROUGH THE FLOOR PAN.

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*KB

10013572

4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT.

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*EH

10011080

POWER SEAT INOPERATIVE FORE/AFT AFTER BEING MOVED ALL THE WAY REARWARD.

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*TT

10010877

FRONT AXLE GRIND WHINE NOISE IN 2WD GONE IN 4WD.

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*EH

10004206

CLUNK NOISE FELT THROUGH FLOOR PAN.

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*TT

Electrical

9 bulletins
629824

INFORMATION ON REPLACING CORRODED TRAILER PRE-WIRE HARNESS AT THE REAR BUMPER.

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*TT

609578

THE SCREW THAT SECURES THE LEFT AND CENTER INSULATOR PANELS TOGETHER, UNDERNEATH THE I/P ON THE DRIVER'S SIDE MAY PULL...

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THE ONE PUSH/INSERT NUT OUT OF THE CENTER INSULATOR PANEL CAUSING, THE INSTRUMENT PANEL(I/P) INSULATOR PANEL TO RATTLE. YD

10246631

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

10113258

This Preliminary Information communication provides information to the technician about vehicles that have a...

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Supplemental Inflatable Restraint lamp, Service Vehicle Soon lamp on and/or radio locked, possibly after module replacement. Technician will need to check for an incorrect or non-existent VIN number in modules that require them. Technician should ensure that all modules that are replaced are programmed per currently published Service Information. Technician should also check the Sensing and Diagnostic Module part number if it was replaced.

10018585

FUEL AND TEMPERATURE GAUGE INOPERATIVE, LOW FUEL AND BATTERY LIGHT ON, PRNDL INOPERATIVE.

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*TT

10014809

4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN.

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*TT

10012703

DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY.

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*EH

10010053

INSTRUMENT CLUSTER PRNDL INOPERATIVE AND OR BATTERY LIGHT ON.

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*SC

10000734

REVISED HEATER / VENT MODULE REPLACEMENT.

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*TT

Transmission

6 bulletins
634999

DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE.

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*TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT

634905

SOME VEHICLES WILL NOT MOVE WHEN 4-WHEEL DRIVE IS REQUESTED, NOISE, SHUDDER, POOR PERFORMANCE, TRANSMISSION / TRANSFER...

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CASE SLIPS, TRANSMISSION WILL NOT UPSHIFT, SLIPS IN 4-WHEEL DRIVE. *TT

10114443

This Preliminary Information communication provides information to the technician about vehicles that have an inaccurate fuel gauge.

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Technician should drive the vehicle to duplicate the concern. The fuel gauge will have a tendency to falsely indicate a lower fuel level than what is actually present. The fuel gauge will take a few minutes to show the correct fuel level. On vehicles equipped with an automatic transmission no buffering takes place when the transmission is in park or neutral. This is a normal characteristic and no repairs are necessary. On vehicles equipped with a manual transmission the fuel gauge is buffered in all gears and neutral. There is a timer which starts to count up when the clutch is depressed. When this timer reaches its calibrated value the buffering stops. This is a normal characteristic and no repairs are necessary.

10007838

DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN.

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*TT

10007237

4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE.

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*TT

10005566

4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION.

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*TT

Brakes

5 bulletins
626507

SUBJECT REGARDING NECESSARY RESURFACING OF THE PARK BRAKE DRUM.

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*JG

10006961

POP SNAP NOISE IN THE FRONT SUSPENSION WHEN BRAKING.

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*MR

10006115

REAR PARKING BRAKE SHOE RETAINING SPRING CLIP SERVICE KIT FOR DRUM-IN-HAT (DIH) EQUIPPED VEHICLES.

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*TT UPDATE. *TT

10000749

ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS ON VARIOUS MODELS INCLUDING THE 1995 AND 1996 ENVOY.

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*TT

10000062

ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS.

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*TT

Pre-Delivery & Maintenance

5 bulletins
10248444

Vehicle Recalls

10232287

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

10166638

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

10154641

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

10138060

This warranty administration bulletin provides policy information with the field action courtesy transportation policy.

Infotainment

5 bulletins
10168979

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable. E version update is to add administrative details.

10165876

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable.

10141381

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock.

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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.

10114947

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.

10114924

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.

Lighting

4 bulletins
6088752

CONCERNS WITH INSUFFICIENT REAR SEAT LIGHTING.

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*TT

606520

CUSTOMERS MAY COMMENT ON INOPERATIVE DAYTIME RUNNNG LAMPS (DRL) ON SOME MODELS BUILT BETWEEN VIN BREAKPOINTS WK247020 - WK258202.

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*TT

604216

BRIEF INFORMATION REGARDING INSUFFICIENT REAR SEAT LIGHTING.

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*TT

10009647

DRIVER INFORMATION CENTER (DIC) STAYS IN BULB CHECK.

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*TT

Software & Calibration

1 bulletin
10082506

THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE MEDIA DISC PLAYER WITH THE LATEST CALIBRATIONS TO CORRECT...

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A CONDITION OF THE REAR ENTERTAINMENT SYSTEM NOT OPERATING AS INTENDED IN COLDER AMBIENT TEMPERATURE AREAS DUE TO CALIBRATION CONCERNS.

HVAC & Climate

1 bulletin
10010270

HEAT COMING FROM VENTS WITH HVAC OFF.

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*TT

Tires & Wheels

1 bulletin
10001110

SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR.

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*TT