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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 HD6/HT6 Compressor -> Shaft Seal, Replace -> Installation -> Removal
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

Removal
  • Recover refrigerant as outlined under , then loosen and reposition compressor in brackets.
  • Remove clutch plate and hub as outlined under "Compressor Clutch Service."
  • Remove shaft seal retaining ring.
  • Clean inside of compressor neck area around shaft and seal seat to prevent damage to compressor from entry of dirt.
  • Place seal protector tool No. J-33021, or equivalent, over end of shaft to avoid chipping ceramic seat.
  • Engage knurled tangs of seal seat replacement tool No. J-23128-A, or equivalent, into recessed portion of seal seat by turning handle clockwise.
  • Remove seal seat ...

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BRAKE SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

Power Brake Units -> Bendix Brake Booster -> Description
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

In order to properly service power brake systems, a thorough understanding of the power assist system 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.

Hydraulic assist units incorporate a basic open center spool valve, hydraulic cylinder and an accumulator assembly in a common housing. When the brake pedal is depressed, the hydraulic piston moves forward closing off fluid relief passages, the spool valve applies flui...

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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 4.3 V6 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 -> Change Trans Fluid Indicator ->
Vehicle: 1998 GMC Sonoma 4.3 V6 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 1998 GMC Sonoma AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Reposition heater core inlet hose clamp at engine water outlet adapter pipe.
  • Remove hose from engine water outlet adapter pipe.
  • Reposition heater hose inlet clamp at heater core.
  • Remove heater inlet hose from heater core.
  • Remove hose from vehicle.
  • Rev...

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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+.

Fuel Filter Diagram for 1998 GMC Sonoma  4.3 V6 GASFuel Filter Diagram for 1998 GMC Sonoma 4.3 V6 GAS

Components on diagram:
  • Fuel Filter
  • LH Side Of I/P Diagram for 1998 GMC Sonoma  2.2 L4 GASLH Side Of I/P Diagram for 1998 GMC Sonoma 2.2 L4 GAS

    Components on diagram:
  • Headlamp Switch
  • I/P Fuse Block
  • Left Hand Front Door Jamb Switch
  • Connector C-217
  • Splice S-204
  • 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:
  • Radio
  • Rear Window Defogger
  • Heater and A/C Control Module
  • Interior Light Dimming
  • Automatic Day-Night Mirror
  • 1998 GMC Sonoma  4.3 V6 GAS Wiring Diagram1998 GMC Sonoma 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Power Relay
  • 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!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details about 2000 GMC Sonoma Bumper Cover, Front2000 GMC Sonoma Bumper Cover, Front.

    Source: Auto Body Parts Store

    $82.77

    Click here to view more details about 2000 GMC Sonoma Fender, Front, Driver Side2000 GMC Sonoma Fender, Front, Driver Side.

    Source: Auto Body Parts Store

    $55.78

    Click here to view more details2002 GMC Pickup Fullsize C/K Driver Side Front Lower Side Marker Light Lens And Housing, Driver Side Front Lower Side Marker Light Lens And Housing; With Dual Or Composite Head Lights, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $6.50

    Click here to view more details about 2004 GMC Sonoma V6, 4.3 L, 260 CID Rebuilt Engine2004 GMC Sonoma V6, 4.3 L, 260 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,451.00

    Click here to view more details1996 GMC Sonoma Used Air Flow Meter/Sensor, 3.1, AUTO, FWD, Very Good.

    Source: Used Auto Parts Store

    $92.00

    Click here to view more details2004 GMC Sonoma Used Flywheel, 4.3L, Very Good.

    Source: Used Auto Parts Store

    $45.00
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