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GMC S15 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about GMC S15 Pickup car and truck
repair procedures including GMC engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your GMC S15 Pickup automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported GMC S15 Pickup cars and light trucks from 1990+
A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Chevrolet & GMC S & T Series & Oldsmobile Bravada
Vehicle: 1990 GMC S15 Pickup 2.8 V6 GAS
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BRAKE SERVICE PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC S15 Pickup cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Bendix Brake Boosters -> POWER BRAKE UNIT, Replace -> 1990-91 C & K SERIES -> ASTRO VAN & SAFARI VAN -> CABALLERO & EL CAMINO -> FULL SIZE EXCEPT 1990-91 C & K SERIES
Vehicle: 1990 GMC S15 Pickup 2.5 L4 GAS
CABALLERO & EL CAMINO
Pump brake pedal several times with engine off to deplete accumulator of fluid.
- Remove two nuts attaching master cylinder to booster, then move master cylinder away from booster with brake lines attached.
- Remove three hydraulic lines from booster. Plug and cap all lines and outlets.
- Remove retainer and washer securing booster pushrod to brake pedal arm.
- Remove four nuts attaching booster unit to dash panel.
- From engine compartment, loosen booster from dash panel and move booster pushrod inboard until it disconnects from brake pedal arm. Remove spring wa...
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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported GMC S15 Pickup cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1987-91 S/T Series Blazer, Bravada, Jimmy & Pickup -> Normal Service -> Severe Service
Vehicle: 1990 GMC S15 Pickup 4.3 V6 GAS
Normal Service
R...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC S15 Pickup cars and light trucks from 1990+.
DRIVESHAFT, Replace -> Front -> One Piece Driveshaft -> Rear -> Two Piece Driveshaft
Vehicle: 1990 GMC S15 Pickup 2.8 V6 GAS
Front
- Raise and support vehicle.
- Mark the front U-joint to the pinion yoke on the front differential.
- Mark the relationship of the rear U-joint to the transfer case drive flange.
- Remove the retaining nuts and bolts from the drive flange.
- Remove the clamps and retaining bolts from the front drive axle pinion flange.
- Remove the front propeller shaft from the vehicle.
- Using tape and or a rubber band, wrap the front U-joint bearing caps to ensure the caps do not separate from the U-joint.
- Reverse procedure to install, noting the following:
- Torque front propeller shaft flange to front axl...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported GMC S15 Pickup cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1990 GMC S15 Pickup 4.3 V6 GAS
Upon removal of starter, note if any shims are used. If shims are used, they should be installed in their original locations. After installation, if starter is noisy during cranking, remove one .015 inch double shim or add one .015 inch single shim to outer bolt. If starter makes a high pitched whine after firing, add .015 inch double shims until noise ceases.
- Disconnect battery ground cable.
- Raise and support front of vehicle.
- Raise vehicle half way to gain access to starter motor.
- Re...
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MAINTENANCE LAMP RESET PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC S15 Pickup cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Traction Control System (TCS)/Electronic Stability Control (ESC) Warning Lamp ->
Vehicle: 1990 GMC S15 Pickup 4.3 V6 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC S15 Pickup cars and light trucks from 1990+
Radiator, Replace
Vehicle: 1990 GMC S15 Pickup 2.5 L4 GAS
- Drain cooling system into a suitable container.
- Remove overflow hose.
- Remove upper fan shroud.
- Remove radiator hose inlet.
- Remove radiator hose outlet.
- Remove heater outlet hose.
- Remove transmission oil cooler lines.
- Remove engine oil cooler lines.
- Remove two radiator mounting bolts.
- Remove radiator f...
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SERPENTINE BELT SERVICE PROCEDURES FOR GMC S15 Pickup AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC S15 Pickup cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1990 GMC S15 Pickup 4.3 V6 GAS
- Remove belt tensioner pulley retaining bolt...
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COMPONENT LOCATION DIAGRAMS FOR GMC S15 Pickup AUTOMOBILES
Component location diagrams for most GMC S15 Pickup cars and light trucks sold in the U.S. from 1990+.
 RH Side Of Engine Diagram for 1990 GMC S15 Pickup 2.8 V6 GASComponents on diagram: |
 LH Front Corner Of Engine Compartment Diagram for 1989 GMC S15 Pickup 4.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR GMC S15 Pickup AUTOMOBILES
OEM drawn wiring diagrams for most GMC S15 Pickup cars and light trucks sold in the U.S.
 1990 GMC S15 Pickup 4.3 V6 GAS Wiring DiagramComponents on diagram: |
 1990 GMC S15 Pickup 2.5 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR GMC S15 Pickup AUTOMOBILES
OEM TSB listings for most GMC S15 Pickup cars and light trucks sold in the U.S. from 1985+.
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Document: CD PLAYERS - PROCEDURES FOR CORRECT USE/MAINTENANCE Vehicle: 1988 GMC S15 Pickup 2.5 L4 GAS Auto Systems: |
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Document: INFORMATION ON PROPER TIRE PRESSURE - REVISED Vehicle: 1986 GMC S15 Pickup 2.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR GMC S15 Pickup AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC S15 Pickup cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most GMC S15 Pickup cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most GMC S15 Pickup cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most GMC S15 Pickup cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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