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GMC S15 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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    Get Full Access 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!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for GMC mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your GMC S15 Pickup vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

    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

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup A/C & HEATER SERVICE PROCEDURES

    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 -> Delco-Moraine Brake Boosters -> SINGLE DIAPHRAGM TYPE -> Assemble -> BOOSTER SERVICE -> DESCRIPTION -> Disassemble -> OPERATION
    Vehicle: 1990 GMC S15 Pickup 2.5 L4 GAS

    DESCRIPTION

    These power brake units, Figs. and , are a combination vacuum-hydraulic brake booster of the vacuum suspended type which use engine intake manifold vacuum and atmospheric pressure for its power.

    These units consist of a vacuum power section and an hydraulic master cylinder section. The vacuum power section contains a power piston with rolling diaphragm mechanism and power piston return spring.

    The control valve is made up of an air valve and floating vacuum control valve assembly. The reaction mechanism consists of an hydraulic piston, reaction plate and a series...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup BRAKE SERVICE PROCEDURES

    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 Pressure Relief -> Except Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Tracker & Uplander -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
    Vehicle: 1990 GMC S15 Pickup 2.5 L4 GAS

    Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

    Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

    After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.

    Engines Less Fuel Pressure ...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup FUEL FILTER REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    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+.

    Alternator, Replace
    Vehicle: 1990 GMC S15 Pickup 2.8 V6 GAS

    • Disconnect battery ground cable.
    • Raise and support vehicle.
    • Remove right front wheel and tire.
    • Remove alternator brace.
    • Remove alternator drive belt.
    • Remove output terminal nut.
    • Disconnect electrical connector.
    • Remove alternator mounting bolts.
    • Remove alternator from vehi...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    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 -> Low Coolant Lamp ->
    Vehicle: 1990 GMC S15 Pickup 4.3 V6 GAS

    This lamp should light when engine coolant level in the radiator drops below a predetermined le...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup MAINTENANCE LAMP RESET PROCEDURES

    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+

    Coolant Hose, Replace -> Lower -> Upper
    Vehicle: 1990 GMC S15 Pickup 2.8 V6 GAS

    Lower

    • Drain cooling system into a suitable container.
    • Reposition hose clamp at radiator outlet and remove hose.
    • Reposition hose clamp at water pump inlet and remove hose.
    • Remove hose from vehicle.
    • Reverse procedure...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup RADIATOR & HOSE REPLACEMENT PROCEDURES

    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 2.8 V6 GAS

    • Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup SERPENTINE BELT SERVICE PROCEDURES

    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+.

    Brake Pedal Component Locations  Diagram for 1989 GMC S15 Pickup  2.8 V6 GASBrake Pedal Component Locations Diagram for 1989 GMC S15 Pickup 2.8 V6 GAS

    Components on diagram:
  • Cruise Control Brake Switch
  • Stop Lamp Brake Switch
  • LH Side Of Engine Compartment   Diagram for 1989 GMC S15 Pickup  2.8 V6 GASLH Side Of Engine Compartment Diagram for 1989 GMC S15 Pickup 2.8 V6 GAS

    Components on diagram:
  • Cruise Control Servo
  • CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup PARTS/COMPONENTS LOCATION DIAGRAMS!

    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  2.5 L4 GAS Wiring Diagram1990 GMC S15 Pickup 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Front Axle Switch
  • 4Wheel Drive Indicator
  • 1990 GMC S15 Pickup  4.3 V6 GAS Wiring Diagram1990 GMC S15 Pickup 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Underhood Lamp Assembly
  • CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup WIRING DIAGRAMS!

    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+.

    Document: INFORMATION ON THE USE OF CUSTOMER CONCERN VERIFICATION SHEETS, COMEBACK PREVENTION, GM TECHNICAL ASSISTANCE INFORMATION FORM (TAC), STRATEGY BASED DIAGNOSTICS (SBD), INTERMITTENT CONCERNS DIAGNOSTICS AND REPEAT REPAIR LOG USE- REVISED
    Vehicle: 1985 GMC S15 Pickup 2.2 L4 DIESEL

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: WARRANTY ADMIN - OPERATING PROCEDURES
    Vehicle: 1988 GMC S15 Pickup 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup TECHNICAL SERVICE BULLETINS!

    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

    CLICK HERE TO GET FULL ACCESS TO GMC S15 Pickup SPECIFICATIONS DATA!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details about 1999 GMC K1500 Mirror, Driver Side1999 GMC K1500 Mirror, Driver Side, This OE replacement mirror is primered and made of the highest quality, rust and corrosion resistant materials to withstand all types of weather. Item is backed by 2-year Kool Vue limited warranty.</p><p><b>Kool Vue</b> specializes in producing mirrors for all vehicle makes and models; our mirrors go through rigorous testing that includes 35,000 hours of Weather Testing, 500 Swing Tests and Impact, Pull Tension, Reflection and Vibration testing to make sure you purchase the highest quality mirrors. You can't go wrong with Kool Vue Mirrors!</p>.

    Source: Auto Body Parts Store

    $51.37

    Click here to view more details about 1999 GMC K1500 Headlight, Driver Or Passenger Side1999 GMC K1500 Headlight, Driver Or Passenger Side, 6 in. x 8 in.; Bulbs included; Sealed beam and capsule type; DOT and SAE approved; A high quality, OE replacement headlight assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $25.43

    Click here to view more details about 2005 GMC Safari Van Power Door Mirror, Passenger Side2005 GMC Safari Van Power Door Mirror, Passenger Side, PASSENGER SIDE POWER DOOR MIRROR, BELOW EYELINE, GLOSS BLACK , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $83.92

    Click here to view more details1990 GMC S15 Pickup L4, 2.5 L, 2474 CC, 151 CID Rebuilt Engine, RWD, Roller cam, S-10, Block #311, 046, Head #642, Crank #543. Also see 58151-09 & 58151-11, Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

    $1,379.00

    Click here to view more details1990 GMC S15 Pickup Used Steering Gear, 2.5, AUTO, 4X2, POWER, Very Good.

    Source: Used Auto Parts Store

    $131.00

    Click here to view more details1982 GMC S15 Pickup Used AM-FM-Cassette, AM-mono-FM-stereo, w/cass, Very Good.

    Source: Used Auto Parts Store

    $86.00
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