Auto Parts Search
1990 GMC R2500 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!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
BRAKE SERVICE PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
POWER BRAKE UNITS, GENERAL MOTORS -> General Service -> DESCRIPTION
Vehicle: 1990 GMC R2500 Suburban 7.4 V8 GAS
In order to properly service power brake systems, a thorough understanding of the various power assist systems is necessary. These systems provide a mechanical assist, acting to increase the force applied to the master cylinder piston by the driver while decreasing the effort necessary to obtain acceptable stopping performance. Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies which use engine vacuum and in some cases vacuum from an external vacuum pump, and hydraulic assist assemblies which use hydraulic pressure developed by an external pump (...
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban BRAKE SERVICE PROCEDURES
FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
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 R2500 Suburban 6.2 V8 DIESEL
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 1990 GMC R2500 Suburban FUEL FILTER REPLACEMENT PROCEDURES
DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
CV AXLE SHAFT, Replace -> Install -> Remove
Vehicle: 1990 GMC R2500 Suburban 7.4 V8 GAS
Remove
- Raise and support vehicle.
- Remove wheel and tire assembly.
- Remove drive axle center cap, if equipped.
- Insert a drift or large screwdriver through brake caliper into one of the brake rotor vanes in order to prevent drive axle wheel drive shaft from turning.
- Remove nut and washer from hub. Do not reuse nut. A new nut must be used when installing wheel drive shaft.
- Using axle remover tool No. J 45859 or equivalent, press wheel drive shaft from hub.
- Remove bolts securing wheel drive shaft inboard flange to output shaft flange.
- Remove drift from rotor.
- Remove stabilizer shaft li...
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES
STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
Alternator, Replace
Vehicle: 1990 GMC R2500 Suburban 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 mounting bracket.
- Rem...
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban STARTER & ALTERNATOR REPLACEMENT PROCEDURES
MAINTENANCE LAMP RESET PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
General Motors Corp./Saturn Trucks -> Change Trans Fluid Indicator ->
Vehicle: 1990 GMC R2500 Suburban 5.7 V8 GAS
This message will appear on the DIC (Driver Information Center) when it is time to change the transmission fluid....
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban MAINTENANCE LAMP RESET PROCEDURES
RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
Radiator, Replace
Vehicle: 1990 GMC R2500 Suburban 5.7 V8 GAS
- Drain cooling system into a suitable container.
- Remove upper fan shroud.
- Remove radiator hose inlet.
- Remove radiator hose outlet.
- Remove transmission oil cooler lines.
- Remove overflow hose.
- Remove ...
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban RADIATOR & HOSE REPLACEMENT PROCEDURES
SERPENTINE BELT SERVICE PROCEDURES FOR 1990 GMC R2500 Suburban AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 GMC R2500 Suburban 6.2 V8 DIESEL
- Rotate tensioner to release belt tension, using a 1/2 inch breaker bar with a 5/8 inch socket placed on tensioner pulley.
- Remove drive belt.
- Route b...
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban SERPENTINE BELT SERVICE PROCEDURES
COMPONENT LOCATION DIAGRAMS FOR 1990 GMC R2500 Suburban AUTOMOBILES
Component location diagrams for most 1990 GMC R2500 Suburban cars and light trucks sold in the U.S. from 1990+.
EGR Valve Diagram for 1990 GMC R2500 Suburban 7.4 V8 GAS Components on diagram: |
Servo Diagram for 1990 GMC R2500 Suburban 7.4 V8 GAS Components on diagram: |
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban PARTS/COMPONENTS LOCATION DIAGRAMS!
WIRING DIAGRAMS FOR 1990 GMC R2500 Suburban AUTOMOBILES
OEM drawn wiring diagrams for most 1990 GMC R2500 Suburban cars and light trucks sold in the U.S.
1990 GMC R2500 Suburban 7.4 V8 GAS Wiring Diagram Components on diagram: |
1990 GMC R2500 Suburban 7.4 V8 GAS Wiring Diagram Components on diagram: |
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban WIRING DIAGRAMS!
TECHNICAL SERVICE BULLETINS FOR 1990 GMC R2500 Suburban AUTOMOBILES
OEM TSB listings for most 1990 GMC R2500 Suburban cars and light trucks sold in the U.S. from 1985+.
Document: Car and Truck Fix It Right the First Time Issues Vehicle: 1990 GMC R2500 Suburban 6.2 V8 DIESEL Auto Systems: |
Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1990 GMC R2500 Suburban 6.2 V8 DIESEL Auto Systems: |
CLICK HERE TO GET FULL ACCESS TO 1990 GMC R2500 Suburban TECHNICAL SERVICE BULLETINS!
COMPONENT/PARTS SPECIFICATIONS FOR 1990 GMC R2500 Suburban AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 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 1990 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 1990 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 1990 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 1990 GMC R2500 Suburban SPECIFICATIONS DATA!
Shop online for auto body parts, engines, wheels, lights...
More parts |
Get the Complete Technical Service Bulletins! |
Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 1990 GMC R2500 Suburban vehicle. |
Access the Complete guide! |