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GMC K2500 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW
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A/C & HEATER SERVICE PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported GMC K2500 Pickup cars and light trucks from 1990+
Cooling System Capacities -> General Motors Corp./Saturn Light Trucks & Vans -> 1992-2000 Chevrolet & GMC C/K Series Cab-Chassis & Pickup
Vehicle: 1994 GMC K2500 Pickup Sierra 5.0 V8 GAS
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BRAKE SERVICE PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC K2500 Pickup cars and light trucks from 1990+.
Anti-lock Brakes -> Rear Wheel Anti-Lock Brake System -> Troubleshooting
Vehicle: 1994 GMC K2500 Pickup Sierra 5.0 V8 GAS
When troubleshooting the anti-lock brake system, refer to "Wiring Diagrams" in "Vehicle Systems" and connectors, Figs. through ; these may be helpful in completing a visual inspection of all relat...
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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported GMC K2500 Pickup cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> 6.2L Diesel Engine
Vehicle: 1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL
On models equipped with fuel injected engines, relieve fuel system pressure as outlined under "Fuel System Pressure Relief."
On models equipped with metal collar quick disconnect connectors, GM tool No. J37088-A, or equivalent, will be required to disconnect the connector. Prior to reconnecting the connector, apply a few drops of clean motor oil to the male pipe ends.
On models equipped with plastic collar quick disconnect connectors, squeeze the connector plastic retainer release tabs to release the connector. Prior to reconnecting the connector, apply a few drops of clean motor...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC K2500 Pickup cars and light trucks from 1990+.
CV AXLE SHAFT, Replace
Vehicle: 2000 GMC K2500 Pickup 6.5 V8 DIESEL
- Raise and support vehicle.
- Remove wheel and tire assembly.
- Remove drive axle center cap, if equipped.
- Insert a drift or large screwdriver through brake caliper into one of the brake rotor vanes in order to prevent drive axle wheel drive shaft from turning.
- Remove nut and washer from hub. Do not reuse nut. A new nut must be used when installing wheel drive shaft.
- Using axle remover tool No. J 45859 or equivalent, press wheel drive shaft from hub.
- Remove bolts securing wheel dr...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported GMC K2500 Pickup cars and light trucks from 1990+.
Alternator, Replace
Vehicle: 1991 GMC K2500 Pickup Sierra XC 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.
- Remove alternator from vehicle.
- Revers...
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MAINTENANCE LAMP RESET PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC K2500 Pickup cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Check Engine Oil Level ->
Vehicle: 1996 GMC K2500 Pickup Sierra 6.5 V8 DIESEL
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 GMC K2500 Pickup AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC K2500 Pickup cars and light trucks from 1990+
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1994 GMC K2500 Pickup Sierra 6.5 V8 DIESEL
Inlet
- Remove air cleaner.
- Drain cooling system into a suitable container.
- Remove heater hose support clamp bolt.
- Reposition heater core inlet hose clamp at engine.
- Remove hose from engine.
- Reposition heater hose inlet clamp at heater core.
- Remove heater inlet hose from heater core.
- Remove hose from vehicle.
- Reverse procedure to in...
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SERPENTINE BELT SERVICE PROCEDURES FOR GMC K2500 Pickup AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC K2500 Pickup cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1994 GMC K2500 Pickup Sierra XC 6.5 V8 DIESEL
- Rotate tensioner to release belt tension, using a 1/2 inch breaker bar with a 5/8 inch socket placed on tensioner pulley.
- Remove drive belt.
- Route b...
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COMPONENT LOCATION DIAGRAMS FOR GMC K2500 Pickup AUTOMOBILES
Component location diagrams for most GMC K2500 Pickup cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR GMC K2500 Pickup AUTOMOBILES
OEM drawn wiring diagrams for most GMC K2500 Pickup cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR GMC K2500 Pickup AUTOMOBILES
OEM TSB listings for most GMC K2500 Pickup cars and light trucks sold in the U.S. from 1985+.
Document: A/C EVAPORATOR - NEW DRAIN TUBE/INTERIOR WATER LEAK Vehicle: 1989 GMC K2500 Pickup Sierra 4.3 V6 GAS Symptoms: |
Document: FRONT DOOR/A-PILLAR WIND NOISE - SERVICE PACKAGE Vehicle: 1992 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR GMC K2500 Pickup AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC K2500 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 GMC K2500 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 GMC K2500 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 GMC K2500 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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