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1993 GMC G25/G2500 VAN 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 1993 GMC G25/G2500 VAN AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
Vehicle: 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
Drum Brakes -> General System Inspection -> Adjuster Mechanism -> Backing Plate -> Brake Drums -> Brake Linings & Springs -> Parking Brake Cable
Vehicle: 1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL
Brake Drums
Any time the brake drums are removed for brake service, the braking surface diameter should be checked with a suitable brake drum micrometer at several points to determine if they are within the safe, oversize limit stamped on the brake drum outer surface. If the braking surface diameter exceeds specifications, the drum must be replaced. If the braking surface diameter is within specifications, drums should be cleaned and inspected for cracks, scores, deep grooves, taper, out-of-roundness and heat spotting. If drums are cracked or heat spotted, they must be ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> Late 1986-06 Chevrolet & GMC G Series w/Gasoline Engines
Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.0 V8 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
DRIVESHAFT, Replace -> One Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1993 GMC G25/G2500 VAN Rally 5.0 V8 GAS
One Piece Driveshaft
- Raise and support vehicle.
- Mark rear universal joint to drive shaft flange.
- Remove retaining bolts and clamps.
- Remove propeller shaft from pinion drive flange.
- Remove propeller shaft from transmission/transfer case.
- Using tape or a rubber band, wrap the U-Joint bearing caps to ensure bearing caps do not separate from U-Joint.
- Reverse procedure to install, noting the following:
- Align reference marks made during removal.
- Torque yoke retainer bolts to 18 ft. lbs.
Two Piece Driveshaft
- Raise and support vehicle.
- Suppor...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
Starter, Replace
Vehicle: 1993 GMC G25/G2500 VAN Rally 5.0 V8 GAS
- Disconnect battery ground cable.
- Raise and support vehicle.
- Remove starter to engine brace and heat shields, if equipped.
- Remove starter motor mounting bolts and lower ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
General Motors Corp./Saturn Trucks -> All Wheel Drive (AWD) System Warning Lamp ->
Vehicle: 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the war...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.7 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 1993 GMC G25/G2500 VAN AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS
- Rotate tensioner counterclockwise, using a 1/2 inch breaker bar with a socket placed on tensioner ...
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COMPONENT LOCATION DIAGRAMS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
Component location diagrams for most 1993 GMC G25/G2500 VAN cars and light trucks sold in the U.S. from 1990+.
PCM Wiring Diagram for 1993 GMC G25/G2500 VAN Rally 5.7 V8 GAS Components on diagram: |
Engine Wiring to Shipping Panel Diagram for 1993 GMC G25/G2500 VAN Rally 5.7 V8 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
OEM drawn wiring diagrams for most 1993 GMC G25/G2500 VAN cars and light trucks sold in the U.S.
1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL Wiring Diagram Components on diagram: |
1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
OEM TSB listings for most 1993 GMC G25/G2500 VAN 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 G25/G2500 VAN Rally 4.3 V6 GAS Auto Systems: |
Document: Air Conditioning Odor Vehicle: 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1993 GMC G25/G2500 VAN 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 G25/G2500 VAN 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 G25/G2500 VAN 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 G25/G2500 VAN 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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