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1998 GMC Sonoma 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 1998 GMC Sonoma 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 Sonoma 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 1998 GMC Sonoma 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 1998 GMC Sonoma AUTOMOBILES

Compressor Service -> Harrison V7 Variable Displacement Compressor -> Compressor Clutch Service -> Clutch Coil, Replace -> Clutch Plate & Hub Assembly, Replace -> Clutch Rotor & Bearing, Replace -> Installation -> Removal
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

Clutch Plate & Hub Assembly, Replace

Refer to for repair information.

Clutch Rotor & Bearing, Replace
Removal
  • Remove clutch plate and hub assembly as outlined under "Clutch Plate & Hub Assembly, Replace."
  • Remove rotor and bearing snap ring, then mount puller guide tool No. J-33023, or equivalent, over compressor shaft.
  • Install puller tool No. J-33020, or equivalent, onto rotor, turning puller body clockwise to engage tangs on puller with inner circle of slots in rotor.
  • Hold body of puller and tighten screw to remove rotor and bearing assembly.
Installation
  • Mount rotor and bearing...

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BRAKE SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

Drum Brakes -> Inspection -> Adjuster Mechanism -> Backing Plate -> Brake Drums -> Brake Linings & Springs -> General System -> Parking Brake Cable
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

General System

  • Inspect components for damage or unusual wear. Replace as required.
  • Inspect backing plate mounting bolts and ensure they are tight.
  • Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement. Slight amount of fluid is always present and is considered normal, acting as lubricant for cylinder pistons.
  • Check adjuster screw operation. If satisfactory, lightly lubricate adjusting screw and washer with suitable brake lube. If operation is unsatisfactory, replace.
  • C clean rust and dirt from shoe contact surfaces on backing plate using fi...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1992-05 S/T Series Blazer, Bravada, Jimmy & Pickup -> Normal Service -> Severe Service
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

Normal Service

R...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

DRIVESHAFT, Replace -> Front -> Front, All Except NP8 Axle -> Front, NP8 Axle -> One Piece Driveshaft -> Rear -> Three Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1998 GMC Sonoma 2.2 L4 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 1998 GMC Sonoma AUTOMOBILES

Alternator, Replace
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

  • Disconnect battery ground cable.
  • Remove air inlet duct.
  • Remove heater hose brace bolt from rear of alternator.
  • Disconnect alternator electrical connectors.
  • Remove accessory drive belt.
  • Remove alternator mounting bol...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

General Motors Corp./Saturn Trucks -> Service Four Wheel Drive (4WD) System Warning Lamp ->
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

This lamp should light for approximately 6-8 seconds when the ignition is turned On as a bulb check. If the ...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

Lower

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

Upper

  • Remove air cleaner...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

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

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COMPONENT LOCATION DIAGRAMS FOR 1998 GMC Sonoma AUTOMOBILES

Component location diagrams for most 1998 GMC Sonoma cars and light trucks sold in the U.S. from 1990+.

RH Rear Side Of Engine Diagram for 1998 GMC Sonoma  4.3 V6 GASRH Rear Side Of Engine Diagram for 1998 GMC Sonoma 4.3 V6 GAS

Components on diagram:
  • Manifold Absolute Pressure Sensor
  • Generator
  • Fuel Pump Switch
  • Fuel Injector
  • Engine Oil Pressure Gauge Sensor
  • Center Of I/P Diagram for 1998 GMC Sonoma  2.2 L4 GASCenter Of I/P Diagram for 1998 GMC Sonoma 2.2 L4 GAS

    Components on diagram:
  • Instrument Panel
  • Rear Window Wiper/Washer Switch
  • Inflatable Restraint IP Module
  • Connector C-1
  • Connector C-2
  • CLICK HERE TO GET FULL ACCESS TO 1998 GMC Sonoma PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1998 GMC Sonoma AUTOMOBILES

    OEM drawn wiring diagrams for most 1998 GMC Sonoma cars and light trucks sold in the U.S.

    1998 GMC Sonoma  4.3 V6 GAS Wiring Diagram1998 GMC Sonoma 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Control Module (VCM)
  • Battery
  • Generator
  • Voltage Regulator
  • Stator
  • 1998 GMC Sonoma  2.2 L4 GAS Wiring Diagram1998 GMC Sonoma 2.2 L4 GAS Wiring Diagram

    Components on diagram:
  • Generator
  • Powertrain Control Module (PCM)
  • Malfunction Indicator Light (MIL)
  • CLICK HERE TO GET FULL ACCESS TO 1998 GMC Sonoma WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1998 GMC Sonoma AUTOMOBILES

    OEM TSB listings for most 1998 GMC Sonoma cars and light trucks sold in the U.S. from 1985+.

    Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • Document: New Website for AFIT, TPM, and VDR Updates
    Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • CLICK HERE TO GET FULL ACCESS TO 1998 GMC Sonoma TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1998 GMC Sonoma AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 GMC Sonoma 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 1998 GMC Sonoma 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 1998 GMC Sonoma 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 1998 GMC Sonoma 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 1998 GMC Sonoma SPECIFICATIONS DATA!

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