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1994 GMC K3500 Pickup 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!Select Section
- Component Locations
- Wiring Diagrams
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- 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
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1994 GMC K3500 Pickup 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 K3500 Pickup automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 1994 GMC K3500 Pickup Sierra XC 7.4 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
Power Brake Units -> Delco-Moraine Brake Boosters -> General Service
Vehicle: 1994 GMC K3500 Pickup Sierra XC 5.7 V8 GAS
Certain general service procedures apply, regardless of whether the brakes are vacuum or hydraulically assisted. Only top quality, clean brake fluid should be used. More seals and valves are used with power brake systems than with ordinary brakes, so an inferior brake fluid will do much more damage. For the same reason, be sure all dirt is kept out of the system. Additionally, on models with hydraulic assist brakes, care must be taken not to mix the fluids of the booster hydraulic system and brake hydraulic system as the fluids are not compatible.
If the power unit fails, the bra...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1988-06 C/K, G & R/V Series w/Diesel Engines -> Normal Service -> Severe Service
Vehicle: 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL
Normal Service
Repl...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
DRIVESHAFT, Replace -> Front -> Front, All Except NP8 Axle -> Front, NP8 Axle -> One Piece Driveshaft -> Rear -> Three Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL
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 1994 GMC K3500 Pickup AUTOMOBILES
Alternator, Replace
Vehicle: 1994 GMC K3500 Pickup Sierra 7.4 V8 GAS
- Disconnect battery ground cable.
- Disconnect terminal plug and battery lead from rear of alternator.
- Remove accessory drive belt.
- Remove alternator mounting bolts.
- Separate alternator from mounting bracket.
- Reverse procedure to ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
General Motors Corp./Saturn Trucks -> Diesel Engine Water In Fuel Or Drain Fuel Filter Warning Lamp ->
Vehicle: 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL
The "Water in Fuel" indicator will light when excessive water has entered the fuel system. A low pressure sensor activates the lamp as the fuel filter becomes plugged. The lamp will light during engine starting as a bulb check.
Once engine has started, the lamp should go Off. If the lamp is lit intermittently or remains lit, drain fuel filter. If the lamp still remains On after fuel filter has been drained, replace fuel filter. If lamp is lit during high speed opera...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
Radiator, Replace
Vehicle: 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL
- Drain coolant from radiator into a suitable container.
- Remove upper fan shroud bolts and upper fan shroud.
- Remove upper insulators and brackets.
- Remove upper and lower radiator hoses.
- Disconnect and plug transmission fluid cooler lines.
- Disconnect and plug engine oil cooler lines.
- Remove lower fan shroud r...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL
- Rotate tensioner arm counterclockwise using 3/8 inch breaker bar.
- Remove belt from pulleys.
- Route new belt over all pulleys except tensioner arm.
- Rotate tensioner arm co...
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COMPONENT LOCATION DIAGRAMS FOR 1994 GMC K3500 Pickup AUTOMOBILES
Component location diagrams for most 1994 GMC K3500 Pickup cars and light trucks sold in the U.S. from 1990+.
 RWAL Components Diagram for 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESELComponents on diagram: |
 Knock Sensor Location Diagram for 1994 GMC K3500 Pickup Sierra 5.7 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1994 GMC K3500 Pickup AUTOMOBILES
OEM drawn wiring diagrams for most 1994 GMC K3500 Pickup cars and light trucks sold in the U.S.
 1994 GMC K3500 Pickup Sierra XC 7.4 V8 GAS Wiring DiagramComponents on diagram: |
 1994 GMC K3500 Pickup Sierra 5.7 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1994 GMC K3500 Pickup AUTOMOBILES
OEM TSB listings for most 1994 GMC K3500 Pickup cars and light trucks sold in the U.S. from 1985+.
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Document: Car and Truck Fix It Right the First Time Issues Vehicle: 1994 GMC K3500 Pickup Sierra 5.7 V8 GAS Auto Systems: |
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Document: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust Vehicle: 1994 GMC K3500 Pickup Sierra 5.7 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1994 GMC K3500 Pickup AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1994 GMC K3500 Pickup 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 1994 GMC K3500 Pickup 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 1994 GMC K3500 Pickup 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 1994 GMC K3500 Pickup 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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