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1993 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 1993 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 1993 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 1993 GMC Sonoma AUTOMOBILES

Component Replacement & Adjustment -> Light Duty Trucks & Vans -> HEATER CORE, REPLACE -> ASTRO & SAFARI -> Auxiliary Unit -> C & K SERIES -> G SERIES -> LUMINA APV, SILHOUETTE & TRANS SPORT -> Main Unit -> S/T-10/15 -> TRACKER
Vehicle: 1993 GMC Sonoma 2.8 V6 GAS

ASTRO & SAFARI

Main Unit
  • Disconnect battery ground cable and drain cooling system.
  • Disconnect heater hoses from core tubes, then remove instrument panel lower right filler panel.
  • Remove lower air distributor duct, then the defroster outlet duct.
  • Remove heater case cover mounting screws, then case cover.
  • Remove the heater core mounting screws, then the heater core.
  • Reverse procedure to install.
Auxiliary Unit
  • Disconnect battery ground cable and drain cooling system.
  • Disconnect clamps from heater...

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BRAKE SERVICE PROCEDURES FOR 1993 GMC Sonoma AUTOMOBILES

Hydraulic Brake Systems -> Adjustments -> Height Sensing Proportioning Valve
Vehicle: 1993 GMC Sonoma 4.3 V6 GAS

Height Sensing Proportioning Valve

The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be checked if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.

  • Raise and support vehicle leaving wheels on, and allow axle to hang freely.
  • Remove lever retaining nut and disconnect lever from valve shaft, Fig. .
  • Rotate valve shaft to permit installation of correct adjustment gauge, Fig. , ensuring that D shape...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1993 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: 1993 GMC Sonoma 2.5 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 1993 GMC Sonoma AUTOMOBILES

CV AXLE SHAFT, Replace -> Install -> Remove
Vehicle: 1993 GMC Sonoma 4.3 V6 GAS

Remove

  • Disconnect battery ground cable.
  • Unlock steering column, then raise and support vehicle.
  • Remove wheel assembly, then axle nut and washer.
  • Support lower control arm, then remove lower shock absorber nut and bolt.
  • Scribe all revolving driveshaft components in relation to connecting component to ensure correct balance upon assembly.
  • Insert drift through opening in top of caliper into rotor cooler vanes to keep axle from turn...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1993 GMC Sonoma AUTOMOBILES

Alternator, Replace
Vehicle: 1993 GMC Sonoma 2.5 L4 GAS

  • Disconnect battery ground cable.
  • Remove alternator drive belt.
  • Remove alternator mounting bolts.
  • Remove output terminal nut.
  • Disconnect electrical connector.
  • Remove alternator from vehicle.
  • Reverse procedure to install, noting t...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1993 GMC Sonoma AUTOMOBILES

General Motors Corp./Saturn Trucks -> Service Four Wheel Drive (4WD) System Warning Lamp ->
Vehicle: 1993 GMC Sonoma 4.3 V6 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 1993 GMC Sonoma AUTOMOBILES

Radiator, Replace
Vehicle: 1993 GMC Sonoma 4.3 V6 GAS

  • Drain coolant from radiator into a suitable container, then disconnect upper coolant reservoir hose.
  • Remove upper fan shroud bolts, then the shroud.
  • Disconnect and plug transmission fluid cooler lines...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1993 GMC Sonoma AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1993 GMC Sonoma 2.5 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 1993 GMC Sonoma AUTOMOBILES

Component location diagrams for most 1993 GMC Sonoma cars and light trucks sold in the U.S. from 1990+.

Auxiliary Battery/Relay Wiring Diagram for 1993 GMC Sonoma  4.3 V6 GASAuxiliary Battery/Relay Wiring Diagram for 1993 GMC Sonoma 4.3 V6 GAS

Components on diagram:
  • Convenience Center
  • Auxiliary Battery Relay
  • Auxiliary Battery
  • Ground G-101
  • Battery Junction Block
  • LH Side of Steering Column Wiring Diagram for 1993 GMC Sonoma  4.3 V6 GASLH Side of Steering Column Wiring Diagram for 1993 GMC Sonoma 4.3 V6 GAS

    Components on diagram:
  • Park/Neutral Position And Backup Lamp Switch
  • CLICK HERE TO GET FULL ACCESS TO 1993 GMC Sonoma PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1993 GMC Sonoma AUTOMOBILES

    OEM drawn wiring diagrams for most 1993 GMC Sonoma cars and light trucks sold in the U.S.

    1993 GMC Sonoma  2.8 V6 GAS Wiring Diagram1993 GMC Sonoma 2.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Speed Sensor (VSS)
  • Throttle Position Sensor
  • Electronic Spark Timing Distributor
  • Service Engine Soon
  • Oil Pressure Switch
  • 1993 GMC Sonoma  2.8 V6 GAS Wiring Diagram1993 GMC Sonoma 2.8 V6 GAS Wiring Diagram

    Components on diagram:
  • LH Park Lamp
  • LH Headlamp
  • Windshield Washer Pump
  • Wiper Motor And Module
  • Pulse Wiper Washer Switch
  • CLICK HERE TO GET FULL ACCESS TO 1993 GMC Sonoma WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1993 GMC Sonoma AUTOMOBILES

    OEM TSB listings for most 1993 GMC Sonoma cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1993 GMC Sonoma 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: Air Conditioning Odor
    Vehicle: 1993 GMC Sonoma 4.3 V6 GAS

    Symptoms:
  • Odors
  • Auto Systems:
  • Heating, A/C, Ventilation, Defogger
  • CLICK HERE TO GET FULL ACCESS TO 1993 GMC Sonoma TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1993 GMC Sonoma AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1993 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 1993 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 1993 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 1993 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 1993 GMC Sonoma SPECIFICATIONS DATA!

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    Source: Auto Body Parts Store

    $4.81

    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 details1999 GMC Suburban Driver And Passenger Side Pair OF Round Stainless Steel Nerf Bars, Driver And Passenger Side Pair OF Round Stainless Steel Nerf Bars; BY Proefx, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $143.50

    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, .

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    $1,451.00

    Click here to view more details1991 GMC Sonoma Used Air Cleaner Assembly, 2.8, MANUAL, RWD TBI (VIN Z), Without off road air cleaner, Very Good.

    Source: Used Auto Parts Store

    $96.00

    Click here to view more details1996 GMC Sonoma Used Air Cleaner Assembly, 4.3, AUTO, AWD, Very Good.

    Source: Used Auto Parts Store

    $96.00
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