GMC R2500 Suburban REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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GMC R2500 Suburban CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW

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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 R2500 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 R2500 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 R2500 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 R2500 Suburban AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC R2500 Suburban cars and light trucks from 1990+.

HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> WHEEL CYLINDER OVERHAUL
Vehicle: 1991 GMC R2500 Suburban 6.2 V8 DIESEL

  • Raise and support vehicle.
  • Remove wheel, drum and brake shoes.
  • Disconnect hydraulic line at wheel cylinder. Do not pull metal line away from cylinder, as this may kink or bend line. Line will separate from cylinder when cylinder is moved away from brake backing plate.
  • Remove wheel cylinder-to-brake plate attaching screws, then the wheel cylinder.
  • Remove boots, pistons, springs and cups from cylinder, Fig. .
  • Clean all parts with brake fluid.
  • Inspect cylinder bore. A scored bore may be honed as long as the diameter is not increased by ...

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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC R2500 Suburban AUTOMOBILES

Fuel filter replacement procedures with corresponding images for most domestic and imported GMC R2500 Suburban cars and light trucks sold in the U.S. for 1980+.

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Gasoline Engines Except Equinox, Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Uplander & Vue (2004-06) & 2004-06 Envoy, Rainier & TrailBlazer -> Returnless Fuel System
Vehicle: 1991 GMC R2500 Suburban 7.4 V8 GAS

Returnless Fuel System

On models equipped with fuel injected engines, relieve fuel system pressure as outlined under "Fuel System Pressure Relief."

On models equipped with metal collar quick disconnect connectors, GM tool No. J37088-A, or equivalent, will be required to disconnect the connector. Pri...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC R2500 Suburban AUTOMOBILES

Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC R2500 Suburban cars and light trucks from 1990+.

DRIVESHAFT, Replace -> Front -> Front, All Except NP8 Axle -> Front, NP8 Axle -> One Piece Driveshaft -> Rear -> Three Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1990 GMC R2500 Suburban 5.7 V8 GAS

Front

Front, All Except NP8 Axle
  • Raise and support vehicle.
  • Remove front differential carrier shield, if used.
  • Reference mark relationship of propeller shaft to front axle and transfer case flange.
  • Remove bolts and retainers from front axle.
  • Remove bolts and retainers from transfer case.
  • Remove propeller shaft. When removing propeller shaft, do not attempt to remove shaft by pounding on yoke ears or using a tool between yoke and universal joint. If propeller shaft is removed by using such means, injection joints may fracture and lead to premature failure of joint.
  • Compress propeller...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC R2500 Suburban AUTOMOBILES

Includes starter and alternator replacement procedures for domestic and imported GMC R2500 Suburban cars and light trucks from 1990+.

Starter, Replace
Vehicle: 1991 GMC R2500 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 R2500 Suburban AUTOMOBILES

Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC R2500 Suburban cars and light trucks sold in the U.S. from 1990+.

General Motors Corp./Saturn Trucks -> Change Trans Fluid Indicator ->
Vehicle: 1991 GMC R2500 Suburban 7.4 V8 GAS

This message will appear on the DIC (Driver Information Center) when it is time to change the transmission fluid....

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC R2500 Suburban AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC R2500 Suburban cars and light trucks from 1990+

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 GMC R2500 Suburban 6.2 V8 DIESEL

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 R2500 Suburban AUTOMOBILES

Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC R2500 Suburban cars and light trucks sold in the U.S. from 1990+.

Serpentine Drive Belt, Replace
Vehicle: 1991 GMC R2500 Suburban 7.4 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 R2500 Suburban AUTOMOBILES

Component location diagrams for most GMC R2500 Suburban cars and light trucks sold in the U.S. from 1990+.

Coolant Sensor Diagram for 1989 GMC R2500 Suburban  7.4 V8 GASCoolant Sensor Diagram for 1989 GMC R2500 Suburban 7.4 V8 GAS

Components on diagram:
  • Coolant Temperature Sensor
  • Engine Wiring & Components Diagram for 1991 GMC R2500 Suburban  5.7 V8 GASEngine Wiring & Components Diagram for 1991 GMC R2500 Suburban 5.7 V8 GAS

    Components on diagram:
  • Oxygen Sensor
  • ESC Module
  • Fuel Pump Oil Pressure Switch
  • Coil
  • Connector C-106
  • CLICK HERE TO GET FULL ACCESS TO GMC R2500 Suburban PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR GMC R2500 Suburban AUTOMOBILES

    OEM drawn wiring diagrams for most GMC R2500 Suburban cars and light trucks sold in the U.S.

    1990 GMC R2500 Suburban  6.2 V8 DIESEL Wiring Diagram1990 GMC R2500 Suburban 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Endgate Identification Lamp
  • 1990 GMC R2500 Suburban  7.4 V8 GAS Wiring Diagram1990 GMC R2500 Suburban 7.4 V8 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • LH Side Marker Lamp
  • RH Side Marker Lamp
  • RH Rear Clearance Lamp
  • RH Front Clearance Lamp
  • CLICK HERE TO GET FULL ACCESS TO GMC R2500 Suburban WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR GMC R2500 Suburban AUTOMOBILES

    OEM TSB listings for most GMC R2500 Suburban cars and light trucks sold in the U.S. from 1985+.

    Document: SERVICE ALERT: CONCERNS WITH AFTERMARKET FUSES IN GM VEHICLES
    Vehicle: 1987 GMC R2500 Suburban 6.2 V8 DIESEL

    Auto Systems:
  • Chassis Electrical, Wiring, Fuses & Breakers, Wipers, Motors
  • Document: THM 700-R4 - SRTA UPDATE/EXPANDED MODEL APPLICATIONS
    Vehicle: 1987 GMC R2500 Suburban 5.7 V8 GAS

    Auto Systems:
  • Automatic Trans, Coolers, Torque Converter
  • CLICK HERE TO GET FULL ACCESS TO GMC R2500 Suburban TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR GMC R2500 Suburban AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC R2500 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 R2500 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 R2500 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 R2500 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 R2500 Suburban SPECIFICATIONS DATA!

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