LABOR TIME GUIDE REQUEST FOR REVIEW UPDATES. Geo Storm 1991

For 1990-2009 cars

# LABOR TIME GUIDE REQUEST FOR REVIEW UPDATES

#### Subject: LABOR TIME GUIDE REQUEST FOR REVIEW UPDATES

#### Model and Year: 1988-93 PASSENGER CARS AND TRUCKS

This bulletin addresses changes to the published Chevrolet/GEO Labor Time Guides. These changes are the result of dealer "Requests For Review" being handled by the Service Technology Group.

These updates will be included in future revisions as printed, and at that time it is recommended that you discard the paper copy.

In the case of past model year updates, it is recommended that this bulletin be retained with the appropriate model year labor time guide. A complete revision will not be provided.

A-1

REQUEST FOR REVIEW- GEO VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION Trkr Trkr M R S NUMBER VIN CODE 2WD 4WD

EMBLEM, FENDER OR DOOR - REPLACE NOTE: Applicable model years: 1991-92 RIGHT B7400 .3 LEFT B7401 .3

GLASS, FRONT DOOR-ALIGN NOTE: Applicable model years: 1990-91 RIGHT C0100 CONVERTIBLE .4 LEFT C0101 CONVERTIBLE .4

PAD, INSTRUMENT PANEL COVER C2500 2.5 - REPLACE PART GP: 10.230 NOTE: Applicable model years: 1990-92

PANEL/CARRIER ASSEMBLY, INSTRUMENT C2540 2.7 CONTROL - REPLACE PART GP: 10.230 INC: Enable and Disable SIR system. INC: Transfer of all nec. parts. NOTE: Applicable model years: 1990-92

HEAD, CYLINDER - REPLACE J0518 6.7 6.7 5.4 INC: Test compression, use of plastic type guage. NOTE: Applicable model years: M Series 1989-91 NOTE: Applicable model years: Tracker 1991 ADD: A- With A/C .3 .3 .2 B- With Automatic Transmission .2 .2 C- To Clean Parts On Vehicles Over .2 .2 .2 30,000 Miles If Nec

VALVE - RECONDITION OR REPLACE INC: Test compression. ONE CYL J0528 ENGINE CODE 6 (1989-91) 4.1 ENGINE CODE 5 (1990-91) 6.9 ADD: A- With A/C .2 B- To Recondition All Valves (INC: Replace valves as nec.) .7 1.6 C- To Replace Shims (Each) .1 D- To Replace Shims (All) 1.4 E- To Replace Valve Guides .1 .1 F- To Clean Parts On Vehicles Over 30,000 Miles If Nec .2 .2

ENGINE, PARTIAL - REPLACE J1820 5.6 5.6 PART GP: 0.033 NOTE: Applicable model years: 1991-93

A-2 REQUEST FOR REVIEW GEO VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION Trkr Trkr M R S NUMBER VIN CODE 2WD 4WD

ENGINE, PARTIAL - REPLACE ADD: A- With A/C .9 .9 B- W/Skid Plate - .1 C- To Recondition All Valves 2.2 2.2 D- To Clean Parts On Vehicles Over .3 .3 30,000 Miles If Nec

MODULE, DISTRIBUTOR IGNITION J4440 .6 CONTROL - REPLACE PART GP: 2.383 POLICY: E NOTE: Applicable model years: 1990-93

SWITCH - REPLACE INC: Replace fuse where nec. ENGINE OIL PRESSURE N2220 .3 NOTE: Applicable model years: 1991-93 NOTE: Switch or sending unit. ADD: A- With A/C .5 HEADLAMP N2290 .4 INC: Enable and Disable SIR System. NOTE: Applicable model years: 1989-91 INHIBITOR N2323 .6 NOTE: Applicable model years: 1991-92

LIGHTER ASSEMBLY, CIGARETTE N4010 .4 - REPLACE PART GP: 9.709 NOTE: Applicable model year: 1991

ANTENNA COMPONENTS-REPLACE NOTE: Applicable model years: 1991-92 STANDARD COMPLETE ASSEMBLY R0280 .6

RECEIVER, RADIO - R&R R0750 .5 POLICY: S

#### NOTE: This operation is to be used when radio is sublet to AC-Delco (ACD 1078) or other qualified service outlet. NOTE: Applicable model years: 1990-91

CHEVROLET GEO

A-1

REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

GUARD, FRONT BUMPER - REPLACE NOTE: Applicable model years: 1990,91,92 ONE B0086 .5 BOTH B0087 .5

BUMPER ASSEMBLY, FRONT B0260 .5 .5 - ALIGN NOTE: Applicable model years: 1988,89,90,91,92

BAR, REAR BUMPER FACE B0800 - REPLACE NOTE: Applicable model years: 1988,89,90,91,92 ADD: A- W/Step Pads .2 .2 .2

DOOR ASSEMBLY, FRONT - ALIGN NOTE: Applicable model years: 1988,89,90,91,92 RIGHT B4000 .3 .3 .5 .3 .3 .3 .3 LEFT B4001 .3 .3 .5 .3 .3 .3 .3

LOCK, FRONT DOOR - R&R OR REPLACE NOTE: Applicable model years: 1989,90,91,92 RIGHT B4260 LEFT B4261 ADD: A- W/DoorTrim .3

STRIKER, SLIDING OR SWING OUT DOOR LOCK - ADJUST OR REPLACE NOTE: Applicable model years: 1987,88,89,90,91,92 DOOR LOCK B5050 ADD: A- W/Door Trim .3

COVER, TONNEAU - R&R OR B5350 REPLACE NOTE: Applicable model year 1992 SYCLONE, SONOMA GT .2

INDICATOR, TRANSFER CASE C2785 .3 SHIFT CONTROL - REPLACE NOTE: Applicable model years: 1987,88,89

PANEL, FOLDING SECOND SEAT CUSHION - R&R OR REPLACE NOTE: Applicable model year 1988,89,90,91.92 SINGLE SEAT C7570 ADD: A- To Color Coat .4 .4 PB PB

A-2 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

ARMREST AND/OR SUPPORT ASSEMBLY, SECOND OR THIRD SEAT - REPLACE NOTE: Applicable model years: 1988,89,90,91,92 RIGHT C7820 .2 .2 LEFT C7821 .2 .2

MOTOR AND/OR FAN, BLOWER - R&R OR REPLACE NOTE: Applicable model years: 1990,91,92 HEATER D1320 EXC DIESEL .9 .9 DIESEL .9 .9 A/C D1322 EXC DIESEL .9 .9 DIESEL .9 .9

VALVE, AIR DISTRIBUTION D1495 2.7 - R&R OR REPLACE NOTE: Applicable model years: 1988,89,90,91,92

HANGER, SPRING (FORWARD) - REPLACE NOTE: Applicable model year 1990 RIGHT E5330 1.0 LEFT E5331 1.0 BOTH E5337 1.5

GEAR ASSEMBLY, POWER STEERING E9720 1.1 1.1 - R&R NOTE: Applicable model years: 1988,89,90,91,92

GEAR ASSEMBLY, POWER STEERING E9740 1.0 1.0 - REPLACE NOTE: Applicable model years: 1988,89,90,91,92

CARRIER ASSEMBLY - R&R NOTE: Applicable model years: 1989,90,91,92 FRONT DIFFERENTIAL F2122 ADD: A- To Reseal Case - .2 - .2 .2

DRUM, BRAKE - R&R OR REPLACE NOTE: Applicable model years: 1988,89,90,91,92 REAR BOTH H0207 DEMOUNTABLE DRUM .6 .6

COVER AND/OR GASKET, ROCKER - REPLACE NOTE: Applicable model year: 1992 RIGHT BANK J0300 1.0

A-3 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

COVER AND/OR GASKET, ROCKER - REPLACE LEFT BANK J0301 .7 BOTH BANKS J0307 1.3 ADD: A- With A/C (Left Or Both) .5 B- W/Cruise Control (Left Or Both) .1

ROCKER ARM - REPLACE NOTE: Applicable model year: 1992 ONE CYL RIGHT BANK J0350 1.2 LEFT BANK J0351 .9 BOTH BANKS J0357 1.6 ADD: A- With A/C (Left Or Both) .5 B- W/Cruise Control (Left Or Both) .1

STUD, ROCKER ARM-REPLACE NOTE: Applicable model year: 1992 ONE STUD RIGHT BANK J0380 1.4 LEFT BANK J0381 1.2 ADD: A- With A/C (Left) .5 B- W/Cruise Control (Left) .1

PLUG AND/OR GASKET, OIL J0990 .3 .3 .3 .3 .3 .3 .3 .3 PAN DRAIN - REPLACE NOTE: Applicable model years: 1988,89,90,91,92 NOTE: Applies to all engines.

PAN AND/OR GASKET, OIL J1000 - REPLACE NOTE: Applicable model years: 1988,89,90,91,92 NOTE: Applies to engine code 'K' (5.7L) EXC 3500HD 1.7

SEALS(S), CRANKSHAFT REAR J1120 MAIN - REPLACE NOTE: Applicable model years: 1990,1991 NOTE: Applies to engine code 'K' (5.7L) AUTO TRANS 2.1 3.5

FLYWHEEL (AUTOMATIC J1400 2.0 3.4 TRANSMISSION) - REPLACE NOTE: Applicable model years: 1990,91 NOTE: Applies to engine code 'K' (5.7L)

CHEVROLET TRUCK

A-4 REQUEST FOR REVIEW - TRUCK VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

FLYWHEEL (MANUAL J1420 3.0 TRANSMISSION) - REPLACE NOTE: Applicable model years: 1989,90,91,92 NOTE: Applies to engine code 'N' (7.4L)

ENGINE, UNIVERSAL - J1840 8.1 8.1 REPLACE NOTE: Applicable model years: 1988,89,90,91,92 NOTE: Applies to engine codes "C,J' (6.2L Diesel)

ENGINE ASSEMBLY - REPLACE J1880 5.4 5.4 NOTE: Applicable model years: 1988,89,90,91,92 NOTE: Applies to engine codes 'C,J' (6.2L Diesel)

MOTOR ASSEMBLY, STARTER - J4640 REPLACE NOTE: Applicable model years: 1989,90,91,92 V6 WITH AUTO TRANS (S/T SERIES) .6 V6 WITH MANUAL TRANS (S SERIES) .6 V6 WITH MANUAL TRANS (T SERIES) 1.2

FILTER ASSEMBLY, CRANKCASE J6010 .2 .2 .2 .2 .2 .2 .2 .2 VENTILATION - REPLACE POLICY: E NOTE: Applicable model years: 1990,91,92

HOSE(S), CYLINDER CASE J6020 .3 .3 .3 .3 .3 .3 .3 .3 VENTILATION - REPLACE POLICY: E NOTE: Applicable model years: 1990,91,92

HOUSING AND/OR GASKET, J6025 .4 .4 .4 .4 .4 .4 .4 .4 CRANKCASE BREATHER - REPLACE POLICY: E NOTE: Applicable model years: 1990,91,92

GROMMET, CRANKCASE J6040 .3 .3 .3 .3 .3 .3 .3 .3 VENTILATION - REPLACE NOTE: Applicable model years: 1990,91,92

CONTROLLER, ECM J6360 - REPLACE NOTE: Applicable model years: 1991,92

SWITCH - REPLACE NOTE: Applicable model years: 1988,89,90,91,92 INSTRUMENT PANEL COMPARTMENT LAMP N2280 .3

CHEVROLET TRUCK

A-5 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

INSTRUMENT PANEL CLUSTER COMPONENTS (DIGITAL/ELECTRO MECHANICAL - R&R OR REPLACE NOTE: Applicable model years: 1988,89 INSTRUMENT PANEL CLUSTER ASSEMBLY N4180 .6

ANTENNA COMPONENTS - REPLACE NOTE: Applicable model years: 1989,90,91,92 STANDARD LEAD IN R0260 .7

SPEAKER, RADIO - REPLACE NOTE: Applicable model years: 1988,89,90,91,92 REAR RIGHT R0950 EXC DOOR MOUNTED C/K CLUB CAB 1.0 1.0 REAR LEFT R0951 EXC DOOR MOUNTED C/K CLUB CAB .8 .8

GUARD& DOOR EDGE - REPLACE R2500 NOTE: Applicable model year 1992 ONE .2 .2 - .2 TWO OR MORE .3 .3 - .3

DOOR - CORROSION PERFORATION REPAIR NOTE: Applicable model years: 1987,88,89 POLICY: C FRONT RIGHT S5250 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 LEFT S5251 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 REAR RIGHT S5252 1.5 1.5 - - - 1.5 1.5 LEFT S5253 1.5 1.5 - - - 1.5 1.5 SLIDING S5254 - - 1.5 1.5 SWING-OUT FRONT S5255 - - 1.5 REAR S5256 - - 1.5 BACK RIGHT S5257 1.5 1.5 1.5 1.5 LEFT S5258 1.5 1.5 1.5 1.5

A-1 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

BODY, ENTIRE BELOW BELT NOTE: Applicable model years: 1988,89,90,91 REFINISH/CLEAR COAT A5530 CONV CAB 8.0 8.0 SP SP

HINGE, FRONT DOOR (BOLT ON) - REPLACE NOTE: Applicable model years: 1988,89,90,91 RIGHT UPPER B4012 .7 .7

HANDLE, BACK DOOR - REPLACE NOTE: Applicable model years: 1988,89,90,91,92,93 RIGHT B6160 LEFT B6161 ADD: A- To Open Door W/Broken Handle .2 .2 .2 .2

HEADLINING ASSEMBLY - REPLACE NOTE: Applicable model years: 1992,93 ONE PIECE C3128 YUKON/BLAZER/JIMMY (TWO DOOR) 1.5 ADD: A- W/Roof Console .1

ACTUATOR, VACUUM DIAPHRAGM - REPLACE NOTE: Applicable model years: 1989,90,91,92,93 DEFROSTER D1780 2.0 UPPER AND/OR LOWER MODE D1787 2.0

HOSES AND/OR LINES, REFRIGERANT - REPLACE NOTE: Applicable model years: 1991,92,93 COMPRESSOR SUCTION AND DISCHARGE HOSE ASSEMBLY D3088 EXC 'G' VAN DIESEL WITH REAR A/C .9 .9 ADD: A- W/Rear A/C .2 .2 FRONT TO REAR UNIT D3093 ONE OR BOTH 1.4 1.4

AXLE ASSEMBLY, DRIVE - R&R NOTE: Applicable model year 1990 (T Truck only) FRONT RIGHT F1500 1.0 LEFT F1501 1.0 BOTH F1507 1.7 ADD: A- To Replace Shaft (Each) .7

A-2 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

TUBE ASSEMBLY, DIFFERENTIAL F2115 1.6 OUTPUT SHAFT - R&R OR REPLACE NOTE: Applicable model years: 1988,89,90

MODULE, ELECTRONIC BRAKE AND TRACTION CONTROL (ABS & TCS) - REPLACE NOTE: Applicable model years: C/K Suburban/Yukon/Blazer (1992,93) G-Van (1 993) M/L Vans Exc Cargo (1990,91,92,93) S/T Blazer/Jimmy 2 door (1992,93) S/T Jimmy/Blazer 4 door (1990,91,92,93) Syclone (1991) FOUR WHEEL ANTI-LOCK H2505 1.8 1.8 2.0 2.6 1.8

ENGINE OIL LEAK - ANALYZE J0030 .5 .5 .5 .5 .5 .5 .5 .5 NOTE: Applicable model year. 1989 (All Engines) INC: Add dye, run engine, inspect for leaks with black light.

#### NOTE: This labor operation is for reference only. The allowable labor hours for the performance of this procedure should be included in 'Other Labor Hours' of the labor operation submitted for the repair of the leak.

MANIFOLD, EXHAUST - REPLACE NOTE: Applicable model years: 1989,90,91,92 NOTE: Applies to engine codes 'H,K,M'(5.7L) RIGHT BANK J0100 .6 LEFT BANK J0101 .9

MANIFOLD AND/OR GASKET, J0200 2.1 INTAKE - REPLACE NOTE: Applicable model year 1990 NOTE: Applies to engine codes 'H,K,M' (5.7L)

GASKET, CYLINDER HEAD - REPLACE NOTE: Applicable model years: 1989,90,91,92 NOTE: Applies to engine codes 'H,K,M' (5.7L) RIGHT BANK J0500 4.4 LEFT BANK J0501 4.5 BOTH BANKS J0507 6.7

HEAD, CYLINDER - REPLACE NOTE: Applicable model years: 1989,90,91,92 NOTE: Applies to engine codes 'H,K,M' (5.7L) RIGHT BANK J0510 5.7 LEFT BANK J0511 5.8 BOTH BANKS J0517 8.8

A-3 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

VALVE - RECONDITION OR REPLACE NOTE: Applicable model years: 1989,90,91,92 NOTE: Applies to engine codes 'H,K,M' (5.7L) ONE CYL RIGHT BANK J0520 4.9 LEFT BANK J0521 5.1 BOTH BANKS J0527 7.7

SPRING, CAP AND/OR SEAL, VALVE - REPLACE NOTE: Applicable model years: 1987,88,89,90,91,92,93 NOTE: Applies to engine code 'Z' (4.3L) ONE CYL RIGHT BANK J0540 LEFT BANK J0541 BOTH BANKS J0547 ADD: A- With A/C (Left Or Both) .5

BELT, DRIVE - ADJUST NOTE: Applicable model years: 1990,91,92,93 NOTE: Applies to engine codes 'H,K,M (5.7L) and 'N' (7.4L) ONE J0656 .2 ALL J0657 .3

BELT, DRIVE - REPLACE NOTE: Applicable model years: 1990,91,92,93 NOTE: Applies to engine codes 'H,K,M' (5.7L) and 'N' (7.4L) A/C J0660 .3 AIR J0661 .2 FAN/GENERATOR J0663 .2 P/S J0665 .5

SEAL(S), CRANKSHAFT REAR J1120 MAIN - REPLACE NOTE: Applicable model years: 1988,89,90,91 NOTE: Applies to engine codes 'H,K,M' (5.7L) AUTO TRANS 3.1

ENGINE ASSEMBLY - REPLACE J1880 9.6 NOTE: Applicable model years: 1992,93 (L VAN only) NOTE: Applies to engine cods 'W' (4.3L) ADD- A- With A/C 1.1

A-4 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

COOLING SYSTEM LEAK - J3010 .3 .3 .3 .3 .3 .3 .3 .3 ANALYZE NOTE: Applicable model year: 1989 (All Engines) INC: Pressure test or add dye and inspect for leaks with black light.

#### NOTE: This labor operation is for reference only. The allowable labor hours for the performance of this procedure should be included in 'Other Labor Hours' of the labor operation submitted for the repair of the leak.

GENERATOR ASSEMBLY - J4100 .4 .4 REPLACE NOTE: Applicable model years: 1988,89,90,91 NOTE: Applies to engine codes 'H,K,M' (5.7L)

TRANSMISSION OIL LEAK - K6105 .5 .5 .5 .5 .5 .5 .5 .5 ANALYZE NOTE: Applicable model year 1989 (Automatic Transmissions)

INC: Add dye, run engine, inspect for leaks with black light or tracing powder.

#### NOTE: This labor operation is for reference only. The allowable labor hours for the performance of this procedure should be included in 'Other Labor Hours' of the labor operation submitted for the repair of the leak.

TUBE AND/OR SEAL K6140 1.0 1.0 TRANSMISSION FILLER - REPLACE NOTE: Applicable model year 1991 NOTE: Applies to 4L80E Transmission only

INSTRUMENT PANEL CLUSTER COMPONENTS (DIGITAL/ELECTRO MECHANICAL) - R&R OR REPLACE NOTE: Applicable model years: 1990,91 INSTRUMENT PANEL CLUSTER N4180 .4 .4 ASSEMBLY

SPEAKER, RADIO - REPLACE NOTE: Applicable model years: 1990,91,92,93 REAR RIGHT R0950 EXC DOOR MOUNTED AND EXC C/K .8 .8 CLUB CAB REAR LEFT R0951 EXC DOOR MOUNTED AND EXC C/K .8 .8 CLUB CAB

A-1 REQUEST FOR REVIEW - TRUCK VEHICLE SERIES OPERATION C K G ML ST R V P OPERATION DESCRIPTION NUMBER VIN CODE

FLARE, FRONT WHEEL OPENING - R&R OR REPLACE NOTE: Applicable model year 1992 RIGHT B7490 LEFT B7491

ADD: .3 .3 A- To Color Coat GC GC

FLARE, QUARTER OUTER AT WHEEL OPENING - R&R OR REPLACE NOTE: Applicable model year 1992 RIGHT B8280 LEFT B8281 ADD: A- To Color Coat .3 .3 GC GC

CONSOLE ROOF - R&R OR C2870 .6 .5 REPLACE NOTE: Applicable model years: 1992,93 (M/L Van), 1993 (S/T). ADD: A- To Color Coat .3 .4 PB PB

BEZEL FRONT DOOR INSIDE HANDLE - REPLACE NOTE: Applicable model years: 1989,90,91,92,93 RIGHT C3230 .4 LEFT C3231 .4

ADJUSTER ASSEMBLY, FRONT SEAT MANUAL - R&R OR REPLACE NOTE: Applicable model year 1993 SPLIT/DIVIDED SEAT PASSENGER C6020 ONE SIDE .4 SPLIT/DIVIDED SEAT DRIVER C6021 ONE SIDE .3

COVER AND/OR PAD, FRONT SEAT CUSHION - R&R OR REPLACE NOTE: Applicable model year 1993 SPLIT/DIVIDED SEAT PASSENGER C6880 .8 DRIVER C6881 .7

COVER AND/OR PAD, FRONT SEAT BACK CUSHION - R&R OR REPLACE NOTE: Applicable model year 1993 SPLIT/DIVIDED SEAT PASSENGER C7060 .6 DRIVER C7061 .6

A-2 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

SAFETY BELT ASSEMBLY, BACK - REPLACE NOTE: Applicable model years: 1992,93 THIRD SEAT RIGHT C9400 .9 .9 LEFT C9406 .9 .9

MOTOR AND/OR FAN, SLOWER - R&R OR REPLACE NOTE: Applicable model years: 1988,89,90,91,92,93 A/C D1322 EXC DIESEL .5 A/C REAR D1325 .3

VALVE, EXPANSION - REPLACE D3220 1.2 1.2 NOTE: Applicable model years: 1992,93 NOTE: Applies to rear A/C.

BRAKE SYSTEM - BLEED H0700 NOTE: Applicable model years: 1988,89,90,91,92,93 EXC RWAL,4WAL - - .4 .4 .4 .4 .4 .4 RWAL 1.0 1.0 1.0 1.0 1.0 4WAL - 1.2 1.2 1.4 1.2

SENSOR, WHEEL SPEED - REPLACE NOTE: Applicable model year 1992 INC: T Truck only. REAR RIGHT H2414 - - - - .9 LEFT H2415 - - - - .9 BOTH H2417 - - - - 1.3

MANIFOLD, INTAKE UPPER - J0220 R&R OR REPLACE NOTE: Applicable model years: 1992,93 NOTE: Applies to engine codes 'WZ' ADD: A- With A/C .9

MANIFOLD, INTAKE LOWER - J0224 R&R OR REPLACE NOTE: Applicable model year 1992,93 NOTE: Applies to engine codes 'WZ' ADD: A- With A/C .9

FLYWHEEL (AUTOMATIC J1400 3.8 TRANSMISSION/TRANSAXLE) - REPLACE NOTE: Applicable model year 1990 NOTE: Applies to L-Van with engine code 'Z'

A-3 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

ENGINE ASSEMBLY - REPLACE J1880 9.0 NOTE: Applicable model years: 1992,93 NOTE: Applies to L-Van with engine code 'W' ADD: A- With A/C 1.1

PLUGS. GLOW (DIESEL) - REPLACE NOTE: Applicable model years: 1992,93 RIGHT J4760 6.2L .3 .3 6.5 L 1.0 1.0 LEFT J4761 6.2L .3 .3 6.5L .3 .3 BOTH J4767 6.2L .6 .6 6.5L 1.1 1.1

INJECTOR, CENTRAL J5547 MULTIPORT FUEL - REPLACE NOTE: Applicable model years: 1992,93 NOTE: Applies to engine codes 'W,Z' POLICY: E ADD: A- With A/C .9

INJECTOR AND/OR GASKET, THROTTLE BODY - REPLACE NOTE: Applicable model years: 1990,91,92,93 ONE J5666 .6 .6 BOTH J5557 .6 .6

SENSOR, VEHICLE SPEED J6373 .9 .9 (IN DASH) - REPLACE NOTE: Applicable model years: 1990,91

VALVE. FUEL TANK J8016 1.0 SOLENOID - REPLACE NOTE: Applicable model years: 1992,93 ADD: A- To Replace Each Additional Valve .6

VALVE, FUEL TANK PRESSURE J8017 .8 RELIEF - REPLACE NOTE: Applicable model year 1992,93 ADD: A- To Replace Each Additional Valve .4

TRANSMISSION ASSEMBLY- K2720 REPLACE NOTE: Applicable model years: 1990,91,92,93 BORG WARNER 2.4

A-4 REQUEST FOR REVIEW - TRUCK

VEHICLE SERIES OPERATION DESCRIPTION OPERATION C K G ML ST R V P NUMBER VIN CODE

RELAY - REPLACE NOTE. Applicable model years: 1991,92,93 DOOR LOCK N2840 .6

PANEL, PICKUP BOX SIDE - REPLACE NOTE: Applicable model years: 1988,89,90,91,92,93 RIGHT S1250 SHORT BOX-FLEETSIDE/WIDESIDE 9.2 9.2 SHORT BOX INNER PANEL-SPORTSIDE 4.1 4.1 LONG BOX-FLEETSIDE/WIDESIDE 10.4 10.4 LONG BOX-FLEETSIDE/WIDESIDE 12.5 12.5 (W/DUAL REAR WHEELS) LEFT S1251 SHORT BOX-FLEETSIDE/WIDESIDE 9.6 9.6 SHORT BOX INNER PANEL-SPORTSIDE 4.1 4.1 LONG BOX- FLEETSIDE/WIDESIDE 10.8 10.8 LONG BOX-FLEETSIDE/WIDESIDE 12.9 12.9 (W/DUAL REAR WHEELS) ADD: A- W/Dual Wheels Fender Transfer 1.0 1.0 (Fleetside/Wideside) B- W/Inner Wheelhouse Panel .4 .4 (Fleetside/Wideside) C- To Transfer Fender (Sportside) 2.7 2.7

FENDER, REAR - REPLACE NOTE- Applicable model years 1988,89,90,91,92,93 RIGHT S1280 FLEETSIDE/WIDESIDE-DUAL S 1.4 1.4 REAR WHEEL SPORTSIDE 2.9 2.9 LEFT S1281 FLEETSIDE/WIDESIDE - DUAL 1.4 1.4 REAR WHEELS SPORTSIDE 2.9 2.9

A-1 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

BODY, COMPLETE NOTE: Applicable model years: 1987-93 COLOR/CLEAR COAT A5435 COUPE 16.7 JR CONVERTIBLE 15.7 JR ZR1 17.1 JR REFINISH/CLEAR COAT A5440 COUPE 19.7 KW CONVERTIBLE 18.8 KX ZR1 20.1 KW

CHEMICAL PAINT SPOTTING (HORIZONTAL SURFACES)

INC: Hood, top of fenders, roof, deck lid and top of quarter panels for operations A5550 and A5560.

#### NOTE: Applicable model years: 1993 COLOR/CLEAR COAT A5550 11.5 IK REFINISH/CLEAR COAT A5560 13.4 JE

SUPPORT, HOOD (GAS TUBE) - REPLACE PART GP: 8.015 NOTE: Applicable model year: 1991 RIGHT B1670 .2 LEFT B1671 .2 BOTH B1677 .3

BOW ASSEMBLY, NO. 4 - B3340 REPLACE NOTE: Applicable Model Year: 1992 1ST DESIGN 3.0 2ND DESIGN 4.1

HANDLE, FRONT DOOR OUTSIDE - REPLACE NOTE: Applicable model years: 1991-92 RIGHT B4120 .7 LEFT B4121 .7 ADD: A- To Replace Insert .1

PAD, INSTRUMENT PANEL COVER C2500 .7 - REPLACE PART GP: 10.230 NOTE: Applicable model years: 1990-91

A-2 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

SOLENOID, ELECTRIC VACUUM D1775 .6 - REPLACE NOTE: Applicable model years: 1990-91

COVER, HEATER CORE - D2260 .8 R&R OR REPLACE NOTE: Applicable model years: 1991-93

CORE, HEATER - R&R POLICY: S NOTE: Applicable model years: 1990-93 AUXILIARY HEATER D2801 1.4 A/C D2802 1.3

CORE, HEATER - REPLACE NOTE: Applicable model years: 1990-93 AUXILIARY HEATER D2821 1.4 A/C D2822 1.2

HOSES AND/OR LINES, REFRIGERANT - REPLACE NOTE: Applicable model years: 1992-93 CONDENSER TO D3083 .7 EVAPORATOR (LIQUID LINE) EVAPORATOR TO D3085 ACCUMULATOR EXC LT5, QUAD 4 AND DOHC V-6 .6 - QUAD 4 .9

COMPRESSOR SUCTION AND D3088 1.1 DISCHARGE HOSE ASSEMBLY - - -

GEAR ASSEMBLY, POWER E9720 STEERING - R&R PART GP: 6.508 INC: Adjust gear. NOTE: For check and adjust toe-in, refer to Operation E2000 and add the applicable times to the regular hours column.

#### NOTE: Applicable model year: 1991 4 CYL 2.0 ADD: A- To Replace Grommets .1 B- To Replace Stub Shaft Seals .2

GEAR ASSEMBLY, POWER E9730 STEERING SHORT - REPLACE PART GP: 6,508

#### NOTE: For check and adjust toe-in, refer to Operation E2000 and add the applicable times to the regular hours column. NOTE: Applicable model year: 1991 4 CYL 2.0

A-3 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

GASKET, CYLINDER HEAD J0508 7.5 - REPLACE INC: Test compression. NOTE: Applicable model years: 1990-9 1. NOTE: Applies to engine code "A". ADD: A- To Clean Parts On Vehicles Over 30,000 Miles If Nec .4 B- W/Locking Wheel Covers/Nuts (One Or All) .1

PAN AND/OR GASKET, OIL J1000 - REPLACE NOTE: Applicable model years: 1988-91 ENGINE CODE G 1.5 1.5 ADD: A- With A/C .2 .2 B- To Clean Parts On Vehicles Over .2 .2 30,000 Miles if Nec

ENGINE, UNIVERSAL - REPLACE J1840 NOTE: Applicable model year: 1988 ENGINE CODE Z 7.4

GENERATOR ASSEMBLY - J4080 .5 DISASSEMBLE, INSPECT, TEST AND REASSEMBLE NOTE: Applicable model years: 1992-93 ADD: A- To Replace Rotor, Drive End Frame, .1 Pulley, Fan And/Or Front Bearing B- To Replace Rectifier Bridge And/Or .3 Battery Post Terminal And/Or Capacitor C- To Recondition Complete .5 D- To Replace Slip Ring End Frame And/Or Rear Bearing (INC: R&R Or Replace Rectifier Bridge, Battery Post Terminal, .4 Capacitor And Bearing)

MODULE, ELECTRONIC IGNITION J4343 CONTROL (DIS/3CI) - REPLACE NOTE: Applicable model years: 1990-91 V6 1.8

CABLE, SHIFT CONTROL - K5180 4.3 REPLACE PART GP: 4.047 INC: Adjust NOTE: Applicable model years: 1990-91

TRANSAXLE ASSEMBLY - REPLACE K7000 5.4 PART GP: 4.003

INC: Cooler line flush, setting T.V. cable, transfer parts, diagnosis and packaging time for SRTA replacement. NOTE: For check & adjust toe-in, refer to operation E2000 and add the applicable times to the regular hours column. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1

A-4 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

TRANSAXLE ASSEMBLY - REPLACE ADD: B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Replace Flywheel .3 D- To Oil Pressure Test .4

CONVERTER ASSEMBLY, K7020 4.3 TRANSAXLE-REPLACE

INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Replace Converter Seal .1 D- To Recondition Trans Completely (Exc 4.7 Differential/Final Drive) E- To Recondition Differential/Final Drive Assembly .8 F- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

SEAL, TRANSAXLE K7060 3.6 CONVERTER - REPLACE DOES NOT INC: Cooler line flush. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1

DIRECT CLUTCH, FORWARD CLUTCH, INTERMEDIATE BAND - INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments.

#### NOTE: Select the Operation that best describes the primary cause of failure. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. DIRECT CLUTCH K7201 6.7 FORWARD CLUTCH K7202 6.7 INTERMEDIATE BAND K7203 6.7 ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 2.3 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

COVER AND/OR GASKETS, K7500 5.9 TRANSAXLE CASE - REPLACE NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only.

A-5 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

COVER AND/OR GASKETS, TRANSAXLE CASE - REPLACE ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 3.1 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

LINK ASSEMBLY, TRANSAXLE K7520 5.4 DRIVE - REPLACE INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 3.6 Differential/Final Drive D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles if Nec .5

PARKING LOCK ACTUATOR, MANUAL SHAFT AND/OR LEVER AND HUB ASSEMBLIES - REPLACE INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Select the Operation that best describes the primary cause of failure. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. PARKING LOCK ACTUATOR K7541 5.9 ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 3.1 Differential/Final Drive) To Recondition Differential/Final Drive Assembly* D- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5 MANUAL SHAFT, LEVER K7542 5.6 AND HUB ASSEMBLY ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 3.4 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

A-6 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

INPUT INTERNAL GEAR, CARRIER ASSEMBLY, INPUT SUN GEAR AND INPUT DRUM - REPLACE INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Select the Operation that best describes the primary cause of failure. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. INPUT INTERNAL GEAR K7561 6.0 INPUT SUN GEAR K7562 6.0 INPUT DRUM K7563 6.0 CARRIER ASSEMBLY K7564 6.0 ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 3.0 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

CLUTCH, LOW AND REVERSE K7580 6.7 - REPLACE INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 2.3 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

REACTION GEAR SET, K7600 6.3 TRANSAXLE - REPLACE INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 2.7 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .8 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

DIFFERENTIAL AND FINAL K7620 6.7 DRIVE ASSEMBLY, TRANSAXLE - REPLACE INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1

A-7 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

DIFFERENTIAL AND FINAL DRIVE ASSEMBLY, TRANSAXLE - REPLACE ADD: B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely 3.1 D- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

DRIVE GEAR, TRANSAXLE K7680 6.4 GOVERNOR-REPLACE INC: Cooler line flush, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Oil Pressure Test .4

CASE, TRANSAXLE - REPLACE K7800 6.3 INC: Cooler line flush, oil pressure test, setting T.V. cable, clean and inspect parts and all necessary measurements and adjustments. NOTE: Applicable model year: 1993 NOTE: Applies to 3T40 Trans Only. ADD: A- With Rear A/C .1 B- W/Locking Wheel Covers/Nuts (One Or All) .1 C- To Recondition Trans Completely (Exc 2.7 Differential/Final Drive) D- To Recondition Differential/Final Drive Assembly .7 E- To Clean Parts On Vehicles Over 30,000 Miles If Nec .5

ALARM - REPLACE PART GP: 2.195 NOTE: Buzzer or chime. NOTE: Applicable model years: 1990-92 MULTIFUNCTION N1890 1.8

SWITCH - REPLACE WIPER WINDSHIELD N2610 2.4 INC: Enable and Disable SIR System. NOTE: Applicable model years: 1990-91

LENS, INSTRUMENT CLUSTER N4115 1.0 - REPLACE NOTE: Applicable model years: 1990-92

A-8 REQUEST FOR REVIEW- CHEVROLET VEHICLES

VEHICLE SERIES OPERATION DESCRIPTION OPERATION B F J L U W Y NUMBER VIN CODE

COMPUTER (CONTROL), BODY - REPLACE INC: Enable and Disable SIR System NOTE: Applicable model years: 1990-91 MODULE N4800 3.6

MODULE - REPLACE NOTE: Applicable model years: 1990-91 PASSIVE RESTRAINT N4834 .3

HANDLE, FUEL FILLER DOOR LOCK RELEASE - REPLACE R4080 .3 NOTE: Applicable model years: 1990-93

CHEVROLET

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.