GMC G15/G1500 VAN REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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GMC G15/G1500 VAN 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 G15/G1500 VAN 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 G15/G1500 VAN automobile. Try the Automotix DIY solution today!
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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 G15/G1500 VAN 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 G15/G1500 VAN 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 G15/G1500 VAN cars and light trucks from 1990+

Component Replacement & Adjustment -> Light Duty Trucks & Vans -> BLOWER MOTOR, REPLACE -> ASTRO & SAFARI -> Auxiliary Heater -> BRAVADA & S/T-10/15 -> C & K SERIES -> Front -> Front Unit -> G SERIES -> LUMINA APV, SILHOUETTE & TRANS SPORT -> Overhead Unit -> Rear Auxiliary -> TRACKER
Vehicle: 1992 GMC G15/G1500 VAN Vandura 5.0 V8 GAS

ASTRO & SAFARI

Front Unit
  • Disconnect battery ground cable.
  • Remove coolant recovery bottle.
  • Remove bolts securing windshield washer tank and position tank aside.
  • Disconnect blower motor electrical connector, relay bracket and vent tube as required.
  • Remove blower motor flange screws, then the blower motor assembly.
  • Reverse procedure to install, ensuring that blower is properly aligned with pin, if equipped.
Auxiliary Heater
  • Disconnect battery ground cable.
  • Remove auxiliary heater cover screws an...

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BRAKE SERVICE PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC G15/G1500 VAN cars and light trucks from 1990+.

Power Brake Units -> Bendix Brake Boosters -> Power Brake Unit Replacement -> Astro & Safari -> C & K Series -> Full Size Except C & K Series
Vehicle: 1992 GMC G15/G1500 VAN Vandura 4.3 V6 GAS

Astro & Safari

For power brake unit replacement procedures, refer to "Delco Moraine Brake Boosters."

Full Size Except C & K Series

Before disconnecting lines from power unit, depress and release brake pedal several times to allow pressure to discharge from accumulator.

  • On P30 motor home, raise and support vehicle.
  • On all models, remove master cylinder to power brake unit attaching nuts, then position master cylinder aside. Do not disconnect brake lines from master cylinder.
  • Disconnect hydraulic lines from power brake unit. Plug all lines and ports to prevent fluid loss and ...

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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Fuel filter replacement procedures with corresponding images for most domestic and imported GMC G15/G1500 VAN cars and light trucks sold in the U.S. for 1980+.

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1996-03 C/K, G & R/V Series w/Gasoline Engine -> Heavy Duty Emissions -> Light Duty Emissions -> Normal Service -> Severe Service
Vehicle: 1996 GMC G15/G1500 VAN Savana 5.0 V8 GAS

Light Duty Emissions

Normal Service

Replace every 30,000 miles

Severe Service

Rep...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC G15/G1500 VAN cars and light trucks from 1990+.

DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1997 GMC G15/G1500 VAN Savana 4.3 V6 GAS

Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.

Disassemble

  • Support propeller shaft in a line horizontal with table of a press.
  • Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
  • On models equipped with external snap ring retainers, proceed as follows:
    • Disassemble snap rings by ...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Includes starter and alternator replacement procedures for domestic and imported GMC G15/G1500 VAN cars and light trucks from 1990+.

Alternator, Replace
Vehicle: 1993 GMC G15/G1500 VAN Rally 5.7 V8 GAS

  • Disconnect battery ground cable.
  • Disconnect terminal plug and battery lead from rear of alternator.
  • Remove accessory drive belt.
  • Remove alternator mounting bolts.
  • Separate alternator from mount...

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MAINTENANCE LAMP RESET PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC G15/G1500 VAN cars and light trucks sold in the U.S. from 1990+.

General Motors Corp./Saturn Trucks -> Check Fuel Cap Lamp ->
Vehicle: 1994 GMC G15/G1500 VAN 5.0 V8 GAS

The Check Fuel Cap Lamp will illuminate momentarily when the ignition switch is placed in the On position as a bulb check. I...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC G15/G1500 VAN cars and light trucks from 1990+

Radiator, Replace
Vehicle: 1993 GMC G15/G1500 VAN Rally 5.0 V8 GAS

  • Drain coolant from radiator into a suitable container.
  • Remove upper fan shroud bolts and upper fan shroud.
  • Remove upper insulators and brackets.
  • Remove upper and lower radiator hoses.
  • Disconnect and plug transmission fluid cooler lines.
  • Disconnect and plug engine oil cooler lines.
  • Remove lower fan shroud r...

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SERPENTINE BELT SERVICE PROCEDURES FOR GMC G15/G1500 VAN AUTOMOBILES

Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC G15/G1500 VAN cars and light trucks sold in the U.S. from 1990+.

Serpentine Drive Belt, Replace
Vehicle: 1990 GMC G15/G1500 VAN Vandura 5.0 V8 GAS

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COMPONENT LOCATION DIAGRAMS FOR GMC G15/G1500 VAN AUTOMOBILES

Component location diagrams for most GMC G15/G1500 VAN cars and light trucks sold in the U.S. from 1990+.

Engine Block Heater Locations Diagram for 1990 GMC G15/G1500 VAN Vandura 5.0 V8 GASEngine Block Heater Locations Diagram for 1990 GMC G15/G1500 VAN Vandura 5.0 V8 GAS

Components on diagram:
  • Engine Heater
  • Hydro-Boost Brake System Components Diagram for 1991 GMC G15/G1500 VAN Rally 5.7 V8 GASHydro-Boost Brake System Components Diagram for 1991 GMC G15/G1500 VAN Rally 5.7 V8 GAS

    Components on diagram:
  • Fuse Block
  • Parking Brake Warning Switch
  • Flow Switch
  • Hydro-Boost Pressure Warning Switch
  • Electronic Delay Module Assembly
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    WIRING DIAGRAMS FOR GMC G15/G1500 VAN AUTOMOBILES

    OEM drawn wiring diagrams for most GMC G15/G1500 VAN cars and light trucks sold in the U.S.

    1993 GMC G15/G1500 VAN Rally 5.0 V8 GAS Wiring Diagram1993 GMC G15/G1500 VAN Rally 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • TP Sensor
  • Oxygen Sensor
  • MAP Sensor
  • Knock Sensor
  • Engine Coolant Temperature Sensor
  • 1993 GMC G15/G1500 VAN Rally 5.7 V8 GAS Wiring Diagram1993 GMC G15/G1500 VAN Rally 5.7 V8 GAS Wiring Diagram

    Components on diagram:
  • Fuse Panel
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    TECHNICAL SERVICE BULLETINS FOR GMC G15/G1500 VAN AUTOMOBILES

    OEM TSB listings for most GMC G15/G1500 VAN cars and light trucks sold in the U.S. from 1985+.

    Document: WARRANTY ADMINISTRATION - POLICIES FOR USED VEHICLES PURCHASED THROUGH GM-SPONSORED AUCTIONS
    Vehicle: 1989 GMC G15/G1500 VAN Rally 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: TOP TIER DETERGENT GASOLINE - DEPOSITS, FUEL ECONOMY, NO START, POWER, PERFORMANCE, STALL CONCERNS - REVISED
    Vehicle: 1990 GMC G15/G1500 VAN Vandura 4.3 V6 GAS

    Symptoms:
  • Driveability
  • Auto Systems:
  • Fuel Sys, Driveability, Filters (Air & Fuel)
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    COMPONENT/PARTS SPECIFICATIONS FOR GMC G15/G1500 VAN AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC G15/G1500 VAN 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 G15/G1500 VAN 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 G15/G1500 VAN 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 G15/G1500 VAN 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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