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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

Air Bag System Precautions -> General Motors Corp. -> Disarming -> 1990 -> 1990-93 -> 1990-95 -> 1990-97 -> 1991 -> 1991-93 -> 1991-94 -> 1991-95 -> 1992-93 -> 1992-99 -> 1993-2002 -> 1993-94 -> 1993-98 -> 1994 -> 1994-2002 -> 1994-95 -> 1994-96 -> 1994-98 -> 1995-2002 -> 1995-96 -> 1995-97 -> 1995-98 -> 1995-99 -> 1996 -> 1996-2001 -> 1996-97 -> 1997 -> 1997-2002 -> 1997-98 -> 1997-99 -> 1998-2000 -> 1998-2002 -> 1998-99 -> 1999 -> 1999-2000 -> 1999-2001 -> 1999-2002 -> 2000-02 -> 2001-02 -> 2002 -> 2003 -> 2003-04 -> 2003-04 Except Malibu Maxx -> Achieva & Skylark -> Alero -> Astro & Safari -> Aurora -> Avalanche -> Aveo -> Aztek & Rendezvous -> Beretta & Corsica -> Blazer, Jimmy, Sonoma & S-10 -> Bonneville, Eighty-Eight, LeSabre, LSS, Ninety-Eight & Regency -> Bravada, Envoy, Rainier, SSR & TrailBlazer -> C/K Series -> Camaro & Firebird -> Canyon & Colorado -> Caprice, Custom Cruiser & Roadmaster -> Catera -> Cavalier & Sunfire -> Century -> Corvette -> Coupe -> CTS -> Cutlass -> Cutlass Ciera & Cruiser -> Cutlass Supreme -> DeVille -> Eldorado -> Escalade -> Express, G Series & Savana -> Fleetwood -> Grand Am -> Grand Prix & Intrigue -> Impala -> ION -> L-Series -> Light Trucks & Vans -> Lumina -> Lumina APV, Montana, Silhouette, Trans Sport & Venture -> Malibu -> Malibu Maxx -> Metro -> Monte Carlo -> Park Avenue -> Passenger Cars -> Prizm -> Reatta, Toronado & Trofeo -> Regal -> Riviera -> S-Series -> Sedan -> Seville -> Sierra & Silverado -> SRX -> Storm -> Suburban, Tahoe, Yukon & Yukon XL -> Tracker -> Vibe -> VUE -> XLR -> Zone 1 -> Zone 10 -> Zone 12 -> Zone 2 -> Zone 3 -> Zone 4 -> Zone 5 -> Zone 6 -> Zone 7 -> Zone 8 -> Zone 9 -> Zones 1 & 7 -> Zones 2 & 6 -> Zones 5 & 9 -> Zones 7 & 9
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

Passenger Cars

The Sensing and Diagnostic Module (SDM) can maintain enough voltage to cause air bag deployment for up to 10 minutes after the ignition is turned Off and the battery is disconnected. Servicing the Supplemental air bag (SIR) system during this period may result in accidental deployment and personal injury.

Achieva & Skylark
1994-96
  • Ensure front wheels are in straight-ahead position.
  • Turn ignition switch to LOCK position.
  • Remove AIR BAG fuse from fuse block.
  • On 1995 models, remove lefthand sound insulator panel to ac...

CLICK HERE TO GET FULL ACCESS TO 1998 GMC Sonoma A/C & HEATER SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

Disc Brakes -> Delco Single Piston Sliding Caliper -> Brake System Bleed
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS

Refer to "Hydraulic Brake... "

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 GMC Sonoma 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: 1998 GMC Sonoma 2.2 L4 GAS

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 ...

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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...

CLICK HERE TO GET FULL ACCESS TO 1998 GMC Sonoma DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

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 -> All Wheel Drive (AWD) System Warning Lamp ->
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

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

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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...

CLICK HERE TO GET FULL ACCESS TO 1998 GMC Sonoma RADIATOR & HOSE REPLACEMENT PROCEDURES

SERPENTINE BELT SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS

  • Remove belt tensioner pulley retaining bolt...

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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+.

LH Side Of I/P Diagram for 1998 GMC Sonoma  4.3 V6 GASLH Side Of I/P Diagram for 1998 GMC Sonoma 4.3 V6 GAS

Components on diagram:
  • Headlamp Switch
  • I/P Fuse Block
  • Left Hand Front Door Jamb Switch
  • Connector C-217
  • Splice S-204
  • RH Side Of I/P Diagram for 1998 GMC Sonoma  4.3 V6 GASRH Side Of I/P Diagram for 1998 GMC Sonoma 4.3 V6 GAS

    Components on diagram:
  • I/P Compartment Lamp
  • Connector C-201
  • I/P Harness To Passenger Side Inflatable Restraint Module
  • Passenger Inflatable Restraint Module
  • Right Hand Front Side Door Jamb Switch
  • 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:
  • Transmission Range Switch
  • Transfer Case Control Module
  • Starter Solenoid
  • Battery
  • Starter Relay
  • 1998 GMC Sonoma  2.2 L4 GAS Wiring Diagram1998 GMC Sonoma 2.2 L4 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Remote Control Door Lock Receiver
  • 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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    Click here to view more details about 1993 GMC Sonoma Door Handle, Front Or Rear, Driver Side1993 GMC Sonoma Door Handle, Front Or Rear, Driver Side, Without keyhole; A high quality, OE replacement door handle; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $11.43

    Click here to view more details about 1993 GMC Sonoma Headlight, Driver Or Passenger Side1993 GMC Sonoma Headlight, Driver Or Passenger Side, This high quality, OE replacement headlight assembly is supplied by a CAPA certified, ISO/TS 16949, and ISO9001 manufacturing facility. Comes with bulbs and backed by 1-year, unlimited-mileage warranty.<p>Be safe! Replace your worn out or broken lights with these DOT and SAE Approved lighting products. They are made to stand rough road wear and the test of time!<br>.

    Source: Auto Body Parts Store

    $16.90

    Click here to view more details2009 GMC Envoy Passenger Side Head Light Assembly, Passenger Side Head Light Assembly, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $76.50

    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 details2001 GMC Sonoma Used Rear Vent Window, Passenger Side, R., Very Good.

    Source: Used Auto Parts Store

    $88.00

    Click here to view more details2001 GMC Sonoma Used Rear Vent Window, Passenger Side, R., Very Good.

    Source: Used Auto Parts Store

    $88.00
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