SERVICE BULLETIN INDEX 1991 MY 91-01-7A THROUGH 91-435-1D. Chevrolet Chevy K Pickup

Subject: SERVICE BULLETIN INDEX 91-01-7A THROUGH 91-435-1D

Model and Year: 1991 INDEX

This bulletin provides an index of all 1991 Chevrolet Dealer Service Bulletins published through October 1991.

The index is supplied in "Section Sequence" to conform to your Service Bulletin Binder.

Vehicles that may be affected by each bulletin are indicated in the vehicle series column for both passenger cars and trucks. Each vehicle series can be identified by referencing a VIN card or examining the vehicle VIN plate, passenger cars "4th position" or trucks "5th position."

Chevrolet Dealer Service Bulletins are provided to inform technicians of conditions that may occur on some vehicles. Each bulletin specifies both the year/model of the vehicles covered and is intended for application on those vehicles only.

YR SEQ SEC SUBJECT/MODELS YEAR ---------- ------------------------------------------ ----- 91-285 0A CLEANING OF UPPER INSTRUMENT PANEL SURFACE 82-91 91-298 0A LABOR TIME GUIDE REQUEST FOR REVIEW UPDATES 84-91 91-388 0A AC DELCO ADVANCE EXCHANGE PROGRAMS 82-91 91-234 0B NEW DESIGN SPARK PLUGS 91 91-251 0B PAINT ETCHING/STAINING 85-91 91-350 0B FEDERAL VEHICLE THEFT PREVENTION STANDARD 87-91 91-370 0B LOCKING DIFFERENTIAL LUBRICANT 82-91 91-187 1A A/C COMPRESSOR SEALING WASHER USAGE-NEW PARTS 91 91-191 1A HEATER SYSTEM DIAGNOSIS CHART CORRECTION 90-91 91-200 1A LOSS OF HEATING OR COOLING CONTROL 91 91-230 1A A/C CONTROL HEAD LOCKS UP 91 91-252 1A HEATER & A/C REVISED SERVICE PROCEDURE 91 91-278 1A A/C EVAPORATOR DRAIN WATER LEAKS INTO 90-91 FRONT OF VEHICLE 91-279 1A WHISTLE NOISE AT HIGHWAY SPEEDS AND/OR CERTAIN 90-91 HEATER CONTROL POSITIONS 91-284 1A A/C REFRIGERANT LOSS DUE TO LOOSE OR MISSING 80-91 ACCESS FITTING CAPS 91-313 1A UNDER-DASH HEATER CASE HOT SPOT 88-91 91-324 1A INADEQUATE HEAT/AIR FLOW DISTRIBUTION TO 91 DRIVER'S SIDE FLOOR 91-329 1A NEW STYLE O RINGS AT EVAPORATOR 91 91-339 1A INADEQUATE WINDSHIELD DEFROSTER PERFORMANCE 91 91-381 1A AUXILIARY HEATER BLOWER RESISTER 91 91-413 1A LOW HEAT DELIVERY RELATED DIAG REVISED PROC 89-91 91-431 1D ABRASION A/C HOSE AGAINST ENG COOL PAN HOUSING 90-91 91-433 1D AIR CONDITIONER INOPERATIVE 91 91-435 1D AIR CONDITIONER NOISE/VIBRATION 88-91 91-263 3 NOISE FROM FRONT OF DASH WHEN TURNING 90-91 91-173 3B HIGH POWER STEERING EFFORT 89-91 91-174 3B POWER STEERING SHUDDER 90-91 91-204 3B PROPER INSTALL/SEATING OF SIR COIL ASSEMBLY 89-91 91-208 3B REDUCED PWR STRG ASSIST AT LOW AMBIENT TEMPS 80-91 91-233 3B POWER STEERING SQUAWK WHEN TURNING 88-91 91-321 3B STEERING WHEEL REMOVAL 90-91 91-323 3B PWR STEERING PUMP PULLEY REVISED SPECIAL TOOLS 90-91 91-376 3B STEERING WHEEL OSCILLATION/WOBBLE 90-91 91-408 3B POWER STEERING SHUDDER 89-91 91-430 3B PWR STEER RETURN HOSE/PUMP PULLEY CLEARANCE 91 91-168 3C *FRONT SUSPENSION SQUEAK (SEE 91-330-3C) 82-91 91-243 3C FRONT SUSPENSION 91 91-297 3C SPECIAL TOOL FOR STRUT CARTRIDGE REMOVAL 88-91 91-330 3C FRONT SUSPENSION SQUEAK 82-91 91-362 3C KNOCKING NOISE-TORSION BAR SUPPORT INSULATOR 88-91 1DAMAGED/BROKEN 91-379 3C FRONT SUSPENSION BOTTOMING NOISE 83-91 91-417 3C INNER TIE ROD BUSHING CREAK 90-91 91-423 3C SQUAWK/CLUNK NOISE FROM FRONT SUSPENSION 87-91 91-374 3D REVISED LEVER/HGT SENSING PROPORTIONING VALVE 91 91-392 3D REAR SUSPENSION AUXILIARY SPRING THUD/CLUNK 90-91 91-422 3D REAR SUSPENSION SPRING CLUNK 91

YR SEQ SEC SUBJECT YEAR ----------- -------------------------------------- ------ 91-171 3E TIRE DAMAGE CAUSED IN GM ASSY PLANTS - TREAD 88-91 CHUNKING TORN BEAD 91-178 3E SCRATCHES-FULL SIZE ALUMINUM SPARE WHEEL 91 91-302 3E FOUR-WHEEL ALIGNMENT REVISED SOFTWARE 90-91 91-303 3E HUB CAP DISTORTION 90-91 91-359 3E FRONT WHEEL BEARINGS/SEAL 85-91 91-414 3E RATTLE NOISE/RESULT OF LOOSE WHEEL CENTER CAPS 91 91-418 3E LTPWS PART NUMBERS/SENSOR COLOR CODES REVISED 91 91-427 3E RUB CAP DISTORTION DUE TO SUNLIGHT CONCENTRATED 90-91 ON CAP BY TRIM RING 91-286 3F REVISED SIR COIL ASSY CENTERING PROCEDURE 91 91-294 3F IGNITION KEY STICKS IN LOCK CYLINDER 91 91-295 4B REAR AXLE RING AND PINION ASSEMBLY REPLACEMENT 91 91-311 4C FRONT AXLE INNER C/V BOOT CONTACTS FRONT SHOCK 85-91 91-393 4C -REPLACE FR AXLE PARTS/RESULT VIB (SEE 92-23-4C) 90-91 91-378 4D DRIVELIKE IDLE AND/OR PARK VIBRATION 88-91 91-151A 5 BRAKE SQUEAL/NOISE 76-91 91-185 5 RATTLE/BUZZ FROM INSTRUMENT PANEL DURING 90-91 BRAKE APPLY/RELEASE 91-190 5 HGT SENSING BRAKE PROPORTION VALVE ADJUSTMENT 91 91-199 5 ABS LIGHT ON 91 91-212 5 IMPROVED BRAKE PEDAL FEEL 90-91 91-226 5 BRAKE BLEEDING TOOL MODIFICATION 85-91 91-228 5 ANTI-LOCK BRAKES - READING TROUBLE CODES 88-91 91-240 5 AUTO APPLY PARKING BRAKE MAY NOT RELEASE 90-91 91-241 5 ABS NOISE SELF TEST 86-91 91-254 5 RWAL CODE 7 88-91 91-262 5 CLEARING 4WAL TROUBLE CODES 88-91 91-270 5 ANTILOCK BRAKE SYSTEM DIAGNOSIS 91 91-271 5 ADDING WIRE COLORS/ABS WHEEL SPEED SENSOR ASSY 91 91-292 5 TECH1 88-91 RWAL/4WAL BRAKE CARTRIDGE DIAGNOSIS 91 91-309 5 REAR DISC BRAKE MOAN 89-91 91-326 5 NON-FACTORY INSTALLED HYDRAULIC PARKING BRAKE 82-91 91-340 5 INOP 4WD IND LIGHT/RWAL CODE 5 (SEE 91-355-8) 91 91-389 5 ABS DIAG/FRONT WHEEL SENSOR RESISTANCE VALUES 91 91-398 5 DUO-SERVO BRAKE INFORMATION 91 91-405 5 PARK BRAKE LIGHT ON WITH VEHICLE IN 'DRIVE' 91 91-424 5 REAR BRAKE CALIPER SERVICE PROCEDURE 88-91 91-429 5 BRAKE PEDAL EFFORT 90-91 91-214 6 ENGINE EXCHANGE PROGRAM 91 91-308 6 ENGINE VIBRATION-PINCHED TRANSFER VENT HOSE 90-91 91-176 6A CORRECT OIL FILTER 87-91 91-192 6A UNDERSIZED BEARING ART REPLACEMENT 91 91-207 6A OIL PUMP REMOVAL 90-91 91-227 6A CORRECT OIL FILTER 91 91-236 6A ENGINE VIN CODE CORRECTION 91 91-269 6A CAMSHAFT TIMING PULLEYS INSTALLATION 90-91 91-272 6A ENGINE OIL LEAKS 90-91 91-289 6A PISTON RING END GAP SPECS 89-91 91-317 6A VARIABLE FUEL VEHICLE ONLY-SUPP MANUAL REVISION 91 91-338 6A OIL PAN SEALANT 89-91

YR SEQ SEC SUBJECT YEAR ----------- -------------------------------------- ------ 91-428 6A NEW READ GASKET, HEAD TIGHTENING PROCEDURE 90-91 91-167 6B ENGINE OVERHEAT 88-91 91-224 6B ENGINE OVERHEAT WHEN TOWING/DURING HEAVY USAGE 88-91 91-235 6B USE OF RECYCLED ENGINE COOLANT 82-91 91-267 6B INDICATED OVERHEAT CONDITION 90-91 91-352 6B INTERFERENCE, LEAK AND/OR NOISE W/COOLANT 91 RESERVOIR TO HEATER HOSE OR A/C COMPRESSOR 91-402 6B COOLANT RECYCLING UPDATE 82-91 91-416 6B NOISE/VIBRATION DURING COOLING PAN OPERATION 89-91 91-314 6C FUEL SYSTEMS - PRESSURE RELIEF 89-91 91-395 6C FUEL TANK CLUNK NOISE 90-91 91-209 6D CHARGING SYSTEM DIAGNOSIS 90-91 91-213 6D NO START CONDITION/VEHICLE BATTERY DEAD DUE TO 80-91 EXCESS CURRENT DRAW 91-218 6D GRINDING NOISE/NO START/STARTER FAILS TO ENGAGE 90-91 91-231 6D INTERMITTENT NO START CONDITION 88-91 91-261 6D SPARK PLUG BOOTS MAY BE DAMAGED BY MISHANDLING 91 91-336 6D ENGINE WIRE HARNESS/DAMAGED BY ENGINE BLOCK 91 91-337 6D INTERMITTENT ELECTRICAL CONDITIONS 90-91 91-401 6D MELTED WIRE HARNESS CONDUIT 90-91 91-170 6E ECM TERMINAL PIN CHANGE 90-91 91-188 6E ELECTRONIC, POWERTRAIN & BODY CONTROL 91 MODULE - EXCHANGE PROGRAM 91-196 6E REVISED INTAKE PLENUM BOLT TORQUE 91 91-217 6E MULTEC FUEL INJECTORS/CLEANING (SEE 91-280-6E) 86-91 91-221 6E REDUCED PERFORMANCE & POWER (SEE 91-259-6E) 91 91-222 6E HESITATION OR STALL ON COLD ACCELERATION 90-91 91-238 6E DRIVEABILITY IMPROVEMENTS (SEE 91-300-6E) 91 91-239 6E LOW SPEED DRIVEABILITY/CHECK ENG LIGHT CODE 43 9O-91 91-257 6E COLD START/RES IDLE/UPSHIFT (SEE 91-328-6E) 90-91 91-258 6E FUEL CUT-OFF SPECIFICATIONS REVISED 90-91 91-259 6E REDUCED PERFORMANCE AND POWER 91 91-260 6E REVISED ECM TERMINAL END VIEW CHART 91 91-266 6E WHITE OR BLUE SMOKE ON COLD START-UP 91 91-274 6E COLD/HOT ENGINE RESTART DETONATION OR IDLE 90-91 ROUGHNESS DUE TO LEAN CONDITION 91-277 6E REVISED FUEL SYSTEM DIAGNOSIS CHART A-7 91 91-280 6E MULTEC PORT FUEL INJ/CLEANING (91-312-6E) 86-91 91-300 6E DRIVEBILITY IMPROVEMENTS 91 91-312 6E MULTEC PORT FUEL INJECTORS/CLEANING 86-91 91-318 6E DAMAGE ECM/PCM CIRC BOARD W/INSTALL A MEM-CAL 86-91 91-327 6E ENHANCED EGR DIAGNOSTICS 90-91 91-328 6E COLD START STALL/HESITATE IDLE ROLL/UPSHIFT SAG 90-91 91-342 6E ADD TYPICAL VOLTS/ECM CONNECTOR END VIEW CHARTS 90-91 91-344 6E STATE EMISSIONS TESTING INFORMATION 82-91 91-353 6E INTERMITTENT ENGINE ROUGHNESS/CEL CODE 13 & 44 88-91 91-357 6E * SVC ENG SOON LIGHT CODE 22 (SEE 92-02-6E) 91 91-380 6E * SHUDDER/VIBRATION AT LOW SPEEDS (SEE 92-24-6E) 90-91 91-384 6E DAMAGE ECM/PCM & MIS-DIAGNOSED ECM/PCM SYMPTOMS 82-91 DUE TO INCORRECT TAP-TESTING PROCEDURES 91-400 6E REVISED A/C CONTROL CIRCUIT DIAGNOSIS 90

YR SEQ SEC SUBJECT YEAR ......... ......................................... .....

91-411 6E ENGINE DRIVEABILITY/ROUGH IDLE 91 91-419 6E ECM TERMINAL END VIEW 90-91 91-425 6E ENGINE STALL 91 91-432 6E VSS DIAGNOSTIC TROUBLE TREE REVISED CODE 24 91 91-198 6F NOISE, EXHAUST SEAL SQUEAK 90-91 91-265 6F EXHAUST HANGER 'O-RING' UNHOOKING 90-91 91-275 6P EXHAUST MOAN/BOOM 91 91-421 6F EXHAUST HEAT SHIELD RATTLE 87-91 91-165 7A HIGH TRANSFER CASE SHIFT EFFORT 83-91 91-172 7A *3-2 TIP-IN/SLIP-BUMP 18-24NPH (SEE 91-202-7A) 89-91 91-177 7A AUTOMATIC TRANS COOLER LINE CRACKED/LEAKING 82-91 91-182 7A NEW IDENTIFICATION NAMEPLATE TAG 91 91-184 7A NEW ROLLER CLUTCH 82-91 91-186 7A LOW AND REVERSE CLUTCH 87-91 91-193 7A ADDITION OF TRANSAXLE MOUNT/STRUT REMOVE PROC 91 91-194 7A *LATE TRANSAXLE UP-SHIFTS (SEE 91-365-7A) 90-91 91-202 7A 3-2 TIP-IN PLATE/SLIP-BUMP AT 18-24 MPH 89-91 91-203 7A SERVICE REPLACE TRANSMISSION ASSEMBLY 4T60-E 91 91-210 7A AUTOMATIC TRANSMISSION DIAGNOSIS CHARTS UPDATED 91 91-223 7A AUTO TRANSMISSION CHARTS & ARTWORK UPDATES 91 91-225 7A PEDAL BUZZ AT 0 TO LIGHT THROT/FWD GEAR RANGES 90-91 91-242 7A DRIVELINE STOP CLUNK 88-91 91-256 7A ENGINE SURGE ON DECELERATION, VEHICLE SPEED 91 ERRATIC W/CRUISE ON/RANGE 1-5 MPH, NO UPSHIFT

91-283 7A BINDING/INOPERATIVE IN REVERSE-STUCK 4-3 82-91 SEQUENCE VALVE/2-3 SHIFT VALVE 91-333 7A FIRM-HARSH SHIFT/NO 4TH GEAR (SEE 91-357-6E) 91 91-348 7A BUZZ OR VIBRATION NOISE IN PARK OR NEUTRAL 91 91-360 7A 1-2 SHIFT SHUDDER, HARSH OR DOUBLE FEEL 90-91 91-365 7A LATE TRANSAXLE UP-SHIFTS 90-91 91-371 7A TRANSMISSION STUCK IN FIRST GEAR 82-91 91-372 7A 3-2 COASTDOWN CLUNK 90-91 91-386 7A DELAYED SHIFTS IN LOW GEAR - 4WD MODE 91 91-387 7A GRUNT OR SQUAWK NOISE 91 91-390 7A OUTPUT SHAFT/INPUT HOUSING TO OUTPUT SHAFT SEAL 82-91 91-396 7A EVALUATING PEENED SPACER PLATES 82-91 91-399 7A 3-4 CLUTCH/2-4 BAND SERVICE INFORMATION 82-91 91-404 7A HIGH TRANSFER CASE SHIFT EFFORT 88-91 91-407 7A INTERMEDIATE SERVO 91 91-409 7A SQUEAK NOISE FROM SHIFT LEVER 91 91-420 7A LINE AND GOVERNOR PRESSURE TEST-AUTO TRANS 89-91 91-183 7B DRIVELINE MOAN/DROAN/RESONANCE VIB AT 2800 RPM 84-91 91-201 7B TRANSAXLE UNIT REPAIR CORRECTIONS 89-91 91-237 7B MANUAL TRANSMISSION ART CORRECTIONS 91 91-305 7B HUSH PANEL REWORK/CONTACT WITH CLUTCH PEDAL 90-91 91-197 7C CLUTCH PEDAL NOISE, SQUEAK 84-91 91-290 7C CLUTCH ALIGNMENT ARBOR 89-91 91-299 7C NON-SVC CLUTCH RELEASE BEARING (SEE 91-341-7C) 91 91-304 7C CLUTCH CHATTER/SHUDDER ON LAUNCH 88-91 91-331 7C CLUTCH CHATTER/SHUDDER ON LAUNCH 88-91 91-341 7C NON-SVC CLUTCH RELEASE BEAR (SEE 91-364-7C) 91

YR SEQ SEC SUBJECT YEAR ----------- -------------------------------------- ------ 91-364 7C NON-SERVICEABLE CLUTCH RELEASE BEARING 91 91-366 7C DECREASED PERFORMANCE IN CLUTCH SYSTEM 89-91 91-180 7D TRANSFER CASE UNIT REPAIR 91 91-245 8A *AUTOMATIC SAFETY BELTS (SEE 91-250-8A) 90-91 91-250 8A AUTOMATIC SAFETY BELTS 90-91 91-273 8A INST PNL CLUST LIGHT REMAIN ON/BATTERY RUN DOWN 90-91 91-301 8A WARNINGS AND ALARM UPDATED TEST PROCEDURE 90-91 91-346 8A HATCH PULL-DOWN/RELEASE UNIT & CONVERTIBLE 91 REAR LID LATCH ASSEMBLY 91-397 8A HORN FUSE AND HORN CIRCUIT IDENTIFICATION 91 91-115 8B DELAYED ACCESSORY BUS 91 91-355 8B INOPERATIVE 4-WD INDICATOR LIGHT/RWAL CODE 5 91 91-377 8B COMPOSITE HEADLAMP LENSE/BULB REPLACEMENT 90-91 91-403 8C INSTRUMENT PANEL AIR OUTLET/VENT ASSEMBLY LOOSE 91 91-373 8D REAR WDW DEFOG &/ WIPER SWITCHES/HOT TO TOUCH 91 91-166 8E REAR WIPE SYS/PARTIAL WIPE/WASH (SEE 91-205-8E) 90-91 91-195 8E WINDSHIELD WIPER BLADE CHATTER/WIPEABILITY 82-91 91-205 8E REAR WIPER SYSTEMS/PARTIAL WIPE & WASH PATTERN 90-91 91-358 8E WINDSHIELD WIPER BLADE CHATTER 88-91 91-219 9 *SIR SYS DIAG REVISED (SEE 91-310-9) 90-91 91-310 9 SIR SYSTEM DIAGNOSIS REVISED FACING PAGES 90-91 91-229 9A RADIO MAY LOSE SOME FUNCTIONS 90-91 91-293 9A NO RADIO DISPLAY W/PARK LAMP/HEADLAMPS ON 91 91-315 9A POPPING NOISE IN REAR SPEAKERS 91 91-322 9A DELCO BOSE RADIO EXCHANGE PROGRAM 91 91-343 9A INTERMITTENT RADIO CONDITIONS 90-91 91-361 9A POLICE BAND RADIO INTERFERENCE 91 91-368 9A FRONT SPEAKER IMBALANCE 91 91-434 9A AM RADIO INTERFERENCE OR STATIC 85-91 91-363 9B CLICK NOISE ORIGINATING/CRUISE CONTROL SERVO 87-91 91-244 9J SUPPLEMENTAL INFLATABLE RESTRAINT DIAGNOSIS 91 91-347 9J RETURN UNDEPLOYED SIR INFLATOR MODULES 90-91 REPLACED UNDER WARRANTY 91-349 9J DISPOSAL OF LIVE (UNDEPLOYED) SIR DRIVER 90-91 SIDE INFLATOR MODULE 91-169 10 FRONT UNDERBODY/UNDERHOOD RATTLE 88-91 91-175 10 POWER WINDOW, POPPING NOISE WHEN OPERATING 91 91-179 10 BENCH SEAT SQUEAKS/RATTLES 85-91 91-181 10 HOOD FLUTTER 89-91 91-189 10 WAVY UP EDGE/LOOSE/NO ENGAGE/CLIP ON AERO MLDG 91 91-206 10 WIND BUFFETING AT ROOF RACK 91 91-211 10 CREAK/SQUEAK NOISE IN B PILLAR 91 91-215 10 DOOR GLASS TO WEATHERSTRIP SQUEAKING 82-91 91-216 10 PROTECTIVE 'TRANSIT COATING- FOR EXTERIOR PAINT 91 91-220 10 INOPERATIVE INTERMEDIATE SWING-OUT DOOR 85-91 91-232 10 *FUELTANK/UNDERBODY CREAK/GROAN (SEE 91-232A-10) 90-91 91-232A 10 FUEL TANK/UNDERBODY CREAK/GROAN NOISE 90-91 91-246 10 SQUEAKS FROM REAR OF DOORS 82-91 91-247 10 DOOR ALIGNMENTS, GAPS AND FLUSHNESS CHECKS 91 91-248 10 *REAR COMPARTMENT WATERLEAKS (SEE 91-325-10) 82-91 91-249 10 LOCK MODULE ASSY RATTLES AGAINST INNER DR PANEL 90-91

YR SEQ SEC SUBJECT YEAR ----------- -------------------------------------- ------

91-255 10 *CLEAR COAT THICKNESS (SEE 91-282-10) 84-91 91-264 10 SQUEAK AND RATTLE DIAGNOSTIC GUIDE 91 91-268 10 FRONT DOORS WON'T HOLD OPEN ON SLIGHT INCLINE 91 FRONT DOORS HARD TO OPEN 91-276 10 WATER LEAK INTO VEHICLE THRU #5 BOW LATCH 89-91 91-281 10 INTERMEDIATE SIDE DOOR RATTLE 85-91 91-282 10 IMPORTANCE OF CHECKING CLEAR COAT THICKNESS 84-91 BEFORE & AFTER PAINT FINESSE OPERATIONS 91-287 10 NUMBER TWO BOW ACTUATOR 90-91 91-288 10 FRONT DOOR WINDOW REGULATOR MOTORS 90-91 91-291 10 RUST FORMING ON LUGGAGE RACK SLAT SCREWS 91 91-296 10 SEAT BELT RESTRAINT SOLENOIDS REMAIN ON 90-91 91-306 10 REAR BUCKET SEAT SQUEAL/RATTLE/SEAT BACK LOOSE 90-91 91-307 10 T-TOP SEALING STRIPS - AWNINGS 82-91 91-316 10 ROOF PINGING NOISE/BOOM 91 91-319 10 TWIN LIFT-OFF PANEL WATERLEAKS 82-91 91-320 10 SLIDING SIDE DOOR, HARD TO OPEN/CLOSE 90-91 91-325 10 REAR COMPARTMENT WATERLEAKS 82-91 91-332 10 EXTERIOR MIRROR VIBRATION/SHAKE 88-91 91-334 10 HVLP-HIGH VOLUME LOW PRESSURE PAINT APPLICATION 82-91 91-335 10 PASSENGER SEAT WILL NOT LOCK INTO POSITION 89-91 91-345 10 *CLUNK/SNAP FROM FR DOOR GLASS (91-34SA-10) 91 91-345A 10 CLUNK OR SNAPPING NOISE FROM FRONT DOOR GLASS 91 91-351 10 COWL 'POP'/TAPPING NOISE 83-91 91-354 10 WIND NOISE DIAGNOSIS AND CORRECTION 90-91 91-356 10 SPARE TIRE CARRIER RATTLE 90-91 91-367 10 CHILD SEAT TOP STRAP ANCHOR 90-91 91-369 10 HIGH HANDLE EFFORT SLIDING DOOR 85-91 91-375 10 RATTLE FROM 'B' PILLAR CAB MOUNT CUSHION AREA 91 91-382 10 DOOR TRIM PAD CHANGE FOR SERVICE 90-91 91-383 10 WATER LEAKS INTO REAR COMPARTMENT 88-91 91-385 10 DUST ENTERING PSGR COMPARTMENT/REAR COMPARTMENT 87-91 91-391 10 T-TOP W/STRIPS W/DRAIN PROVISIONS AT BUTT JOINT 82-91 91-394 10 WARRANTY PARTS RETURN PROGRAM (SEE 91-394A-10) 90-91 91-394A 10 WARRANTY PARTS RETURN PROGRAM 90-91 91-406 10 FRONT DOOR LOCK ROD RATTLE 83-91 91-410 10 SQUEAKS AND RATTLES 87-91 91-412 10 *PARTIAL DISENGAGE CTR ROLLER (SEE 91-412A-10) 90-91 91-412A 10 PARTIAL DISENGAGEMENT OF CENTER ROLLER BRACKET 90-91 91-415 10 CENTER HIGH MOUNT STOP LAMP CONTACT REAR WINDOW 91 91-426 10 OUTER DR HANDLE RATTLES/LOCK CYLINDER FREEZES 88-91

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.