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1998 GMC Sonoma CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES
Compressor Service -> Application Chart -> Light Trucks & Vans
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES
Drum Brakes -> Brake Service -> Astro, Bravada, S & T Series & Safari -> Aztek -> C & K Series -> Duo-Servo -> G Series -> Installation -> Montana, Silhouette, Trans Sport & Venture -> P Series -> Removal -> Single-Servo -> Tracker
Vehicle: 1998 GMC Sonoma 2.2 L4 GAS
C & K Series
Duo-Servo
Removal
- Raise and support vehicle.
- Mark relationship of wheel to hub, then remove tire and wheel assembly.
- On models equipped with full-floating axles, remove hub and drum assembly as described in "Drive Axles."
- On models equipped with semi-floating axles, proceed as follows:
- Install pin into park brake lever.
- Mark relationship of drum to axle.
- Remove rear brake drum retainers, as required.
- Remove rear brake drum.
- On all models, remove return springs and shoe guide, Fig. .
- Remove brake hold down springs and pins.
- Disconnect actuator lever and pivot.
- Remove lever return spri...
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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 U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS
Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.
Disassemble
- Support propeller shaft in a line horizontal with table of a press.
- Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
- On models equipped with external snap ring retainers, proceed as follows:
- Disassemble snap rings by ...
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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 -> Check Engine Oil Level ->
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS
This system is used to indicate a low engine oil level condition. The lamp should light during engine starting. If oil level is sufficient, the lamp should go off when engine is operating. If oil level is low the...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 GMC Sonoma AUTOMOBILES
Radiator, Replace
Vehicle: 1998 GMC Sonoma 4.3 V6 GAS
- Drain coolant from radiator, then disconnect upper coolant reservoir hose.
- Remove upper fan shroud bolts, then the shroud.
- Disconnect and plug transmission fluid cooler lines.
- Disconnect a...
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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+.
Rear Of Engine Diagram for 1998 GMC Sonoma 4.3 V6 GAS Components on diagram: |
RH Rear Corner Of Engine Compartment Diagram for 1998 GMC Sonoma 4.3 V6 GAS Components on diagram: |
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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 Diagram Components on diagram: |
1998 GMC Sonoma 4.3 V6 GAS Wiring Diagram Components on diagram: |
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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: |
Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 1998 GMC Sonoma 2.2 L4 GAS Auto Systems: |
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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
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