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GMC C3500 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 C3500 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 C3500 Pickup cars and light trucks from 1990+
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: 1992 GMC C3500 Pickup Sierra 6.5 V8 DIESEL
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 GMC C3500 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC C3500 Pickup cars and light trucks from 1990+.
Drum Brakes -> Precautions
Vehicle: 1995 GMC C3500 Pickup Sierra XC 5.7 V8 GAS
When working on or around brake assemblies, care must be taken to prevent breathing asbestos dust, as many manufacturers incorporate asbestos fibers in the production of brake linings. During routine service operations, the amount of asbestos dust from brake lining wear is at a low level due to a chemical breakdown during use, and a few precautions will minimize exposure. Do not sand or grind brake linings unless suitable local exhaust ventilation equipment is used to prevent exces...
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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC C3500 Pickup AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported GMC C3500 Pickup cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1988-95 C/K, G & R/V Series w/Gasoline Engine -> Heavy Duty Emissions -> Light Duty Emissions -> Normal Service -> Severe Service
Vehicle: 1994 GMC C3500 Pickup Sierra 7.4 V8 GAS
Light Duty Emissions
Normal Service
Replace every 60,000 miles
Severe Service
Rep...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC C3500 Pickup AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC C3500 Pickup cars and light trucks from 1990+.
DRIVESHAFT, Replace -> One Piece Driveshaft -> Three Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1995 GMC C3500 Pickup Sierra XC 7.4 V8 GAS
One Piece Driveshaft
- Reference mark propeller shaft to pinion flange connection.
- Reference mark slip yoke to transmission for proper reassembly.
- When servicing driveshafts with pop on seal, do not remove seal from sleeve. Removal of seal causes damage to seal lip where it contacts sleeve yoke. If removal of seal is necessary, replace seal with a new unit.
- Remove bolts.
- Remove retainers.
- Remove yoke and cross assembly, wrapping bearing cups with tape in order to prevent loss of bearing rollers. When removing propeller shaft, do not attempt to remove shaft by pounding on yoke ears o...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC C3500 Pickup AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported GMC C3500 Pickup cars and light trucks from 1990+.
Alternator, Replace
Vehicle: 1994 GMC C3500 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.
- Reverse procedure to ...
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MAINTENANCE LAMP RESET PROCEDURES FOR GMC C3500 Pickup AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC C3500 Pickup cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Check Engine/Service Engine Soon Indicator Lamp -> Electronic Engine Controls Or Electronic Fuel Injection Except Tracker
Vehicle: 1991 GMC C3500 Pickup Sierra XC 5.7 V8 GAS
The Check Engine/Service Engine Soon Lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a problem and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM/PCM memory can be cleared of codes either by using a scan tool (OBD II systems) or by disconnecting the battery ground ca...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC C3500 Pickup AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC C3500 Pickup cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1995 GMC C3500 Pickup Sierra XC 7.4 V8 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from coolant pump.
- Remove radiator outlet hose from coolant pump and from vehicle.
- Reverse procedure...
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SERPENTINE BELT SERVICE PROCEDURES FOR GMC C3500 Pickup AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC C3500 Pickup cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1997 GMC C3500 Pickup Sierra 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 GMC C3500 Pickup AUTOMOBILES
Component location diagrams for most GMC C3500 Pickup cars and light trucks sold in the U.S. from 1990+.
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![]() Components on diagram: |
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WIRING DIAGRAMS FOR GMC C3500 Pickup AUTOMOBILES
OEM drawn wiring diagrams for most GMC C3500 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 C3500 Pickup AUTOMOBILES
OEM TSB listings for most GMC C3500 Pickup cars and light trucks sold in the U.S. from 1985+.
Document: A/T OIL COOLER FLUSHING & FLOW CHECK PROCEDURES Vehicle: 1993 GMC C3500 Pickup Sierra 5.7 V8 GAS Auto Systems: |
Document: WARRANTY - CHANGES TO PAINT CLAIM SUBMISSION PROCESS - PAINT MIX TIME MUST BE ENTERED ON EACH LINE - REVISED Vehicle: 1997 GMC C3500 Pickup Sierra XC 5.7 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR GMC C3500 Pickup AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC C3500 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 C3500 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 C3500 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 C3500 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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