GMC V1500 Suburban REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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GMC V1500 Suburban 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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1991199019891988
1987

Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about GMC V1500 Suburban 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 V1500 Suburban 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 V1500 Suburban vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

BRAKE SERVICE PROCEDURES FOR GMC V1500 Suburban AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC V1500 Suburban cars and light trucks from 1990+.

ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> SYSTEM SERVICE -> BLEEDING EHCU MODULE
Vehicle: 1991 GMC V1500 Suburban 5.7 V8 GAS

BLEEDING EHCU MODULE

The EHCU Module should be bled after replacement or if trapped air is in the unit. If bleeding is required the module must be bled thoroughly before the wheel cylinders and calipers.

There are two bleeders on top of the unit that appear to be normal bleeders, Fig. . These are modulator bleeders and must remain closed when the unit is not pressurized.

The internal bleeders are on either side of EHCU module. The valves are used to open the internal passages within the EHCU module. Both bleed valves must be rotated 1/4-1/2 a turn counterclockwise before beginning t...

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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC V1500 Suburban AUTOMOBILES

Fuel filter replacement procedures with corresponding images for most domestic and imported GMC V1500 Suburban cars and light trucks sold in the U.S. for 1980+.

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> C/K, G & R/V Series w/6.2L, 6.5L & 6.6L Diesel Engines
Vehicle: 1991 GMC V1500 Suburban 6.2 V8 DIESEL

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC V1500 Suburban AUTOMOBILES

Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC V1500 Suburban cars and light trucks from 1990+.

DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1990 GMC V1500 Suburban 6.2 V8 DIESEL

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 V1500 Suburban AUTOMOBILES

Includes starter and alternator replacement procedures for domestic and imported GMC V1500 Suburban cars and light trucks from 1990+.

Starter, Replace
Vehicle: 1991 GMC V1500 Suburban 6.2 V8 DIESEL

  • Disconnect battery ground cable.
  • Remove starter braces or heat shields, if equipped.
  • Disconnect starter solenoid electrical connectors.
  • Raise and support vehicle.
  • Remove at...

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MAINTENANCE LAMP RESET PROCEDURES FOR GMC V1500 Suburban AUTOMOBILES

Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC V1500 Suburban cars and light trucks sold in the U.S. from 1990+.

General Motors Corp./Saturn Trucks -> Water In Fuel Or Drain Fuel Filter Warning Lamp -> Diesel Engine
Vehicle: 1990 GMC V1500 Suburban 6.2 V8 DIESEL

The Water In Fuel indicator should light when excessive water has entered the fuel system. As the fuel filter becomes plugged, a low pressure sensor activates the lamp. The lamp should light during engine starting as a bulb inspection. Once the engine has started, the lamp should go off. If the lamp is lit intermittently, drain fuel filter. If lamp remains lit, drain fuel filter. If the lamp still remains on after fuel filter has been drained, replace fuel filter. If lamp is lit dur...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC V1500 Suburban AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC V1500 Suburban cars and light trucks from 1990+

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 GMC V1500 Suburban 5.7 V8 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...

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SERPENTINE BELT SERVICE PROCEDURES FOR GMC V1500 Suburban AUTOMOBILES

Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC V1500 Suburban cars and light trucks sold in the U.S. from 1990+.

Serpentine Drive Belt, Replace
Vehicle: 1991 GMC V1500 Suburban 5.7 V8 GAS

  • Rotate tensioner counterclockwise, using a 1/2 inch breaker bar with a socket placed on tensioner ...

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COMPONENT LOCATION DIAGRAMS FOR GMC V1500 Suburban AUTOMOBILES

Component location diagrams for most GMC V1500 Suburban cars and light trucks sold in the U.S. from 1990+.

Engine Compartment Wiring Diagram for 1991 GMC V1500 Suburban  6.2 V8 DIESELEngine Compartment Wiring Diagram for 1991 GMC V1500 Suburban 6.2 V8 DIESEL

Components on diagram:
  • Auxiliary Cooling Fan Relay
  • Connector C-100
  • Battery Junction Block
  • Connector C-191
  • Connector C-192
  • Auxiliary Fuel Tank Wiring Diagram for 1991 GMC V1500 Suburban  6.2 V8 DIESELAuxiliary Fuel Tank Wiring Diagram for 1991 GMC V1500 Suburban 6.2 V8 DIESEL

    Components on diagram:
  • Connector C-305
  • Connector C-409
  • Connector C-410
  • Splice S-328
  • Splice S-329
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    WIRING DIAGRAMS FOR GMC V1500 Suburban AUTOMOBILES

    OEM drawn wiring diagrams for most GMC V1500 Suburban cars and light trucks sold in the U.S.

    1990 GMC V1500 Suburban  6.2 V8 DIESEL Wiring Diagram1990 GMC V1500 Suburban 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • License Lamp
  • 1991 GMC V1500 Suburban  5.7 V8 GAS Wiring Diagram1991 GMC V1500 Suburban 5.7 V8 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Dimmer Switch
  • Light Switch
  • LH High-Low Headlamp
  • RH High-Low Headlamp
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    TECHNICAL SERVICE BULLETINS FOR GMC V1500 Suburban AUTOMOBILES

    OEM TSB listings for most GMC V1500 Suburban cars and light trucks sold in the U.S. from 1985+.

    Document: FUEL AND OIL ADDITIVES - FACTS AND MYTHS / MAXIMIZING FUEL ECONOMY - REVISED
    Vehicle: 1989 GMC V1500 Suburban 6.2 V8 DIESEL

    Auto Systems:
  • Chemicals, Antifreeze, Additives
  • Fuel Sys, Driveability, Filters (Air & Fuel)
  • Document: SYNTHETIC GEAR LUBE - REDUCE 2HI TO 4HI SHIFT EFFORT
    Vehicle: 1988 GMC V1500 Suburban 5.7 V8 GAS

    Symptoms:
  • Excessive Control Effort
  • Auto Systems:
  • Chemicals, Antifreeze, Additives
  • CLICK HERE TO GET FULL ACCESS TO GMC V1500 Suburban TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR GMC V1500 Suburban AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC V1500 Suburban 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 V1500 Suburban 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 V1500 Suburban 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 V1500 Suburban 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 V1500 Suburban SPECIFICATIONS DATA!

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