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2002 GMC Envoy 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 2002 GMC Envoy AUTOMOBILES
Component Replacement & Adjustment -> Light Duty Trucks & Vans -> Evaporator Core, Replace -> Astro & Safari -> Aztek & Rendezvous -> Bravada, S & T Series -> C & K Series -> Front -> G Series -> Montana, Silhouette & Venture -> Rear -> Tracker -> Vue
Vehicle: 2002 GMC Envoy 4.2 L6 GAS
Astro & Safari
Front
- Remove air cleaner.
- Recover refrigerant as outlined under .
- Remove coolant recovery reservoir.
- Disconnect electrical connectors.
- Remove compressor hose assembly from accumulator.
- Remove bypass valve bracket from outer case.
- Remove evaporator tube from accumulator.
- Remove relay bracket.
- Remove evaporator tube from evaporator.
- Remove screws from outer evaporator case, then the outer case from module.
- Remove screws to split evaporator module in half.
- Remove inner case...
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BRAKE SERVICE PROCEDURES FOR 2002 GMC Envoy AUTOMOBILES
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Troubleshooting
Vehicle: 2002 GMC Envoy 4.2 L6 GAS
Refer to. "Troubleshooting" as ou...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2002 GMC Envoy AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Gasoline Engines Except Equinox, Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Uplander & Vue (2004-06) & 2004-06 Envoy, Rainier & TrailBlazer -> Returnless Fuel System
Vehicle: 2002 GMC Envoy 4.2 L6 GAS
Returnless Fuel System
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. Pri...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2002 GMC Envoy AUTOMOBILES
DRIVESHAFT, Replace -> Front -> One Piece Driveshaft -> Rear -> Two Piece Driveshaft
Vehicle: 2002 GMC Envoy XL 4.2 L6 GAS
Front
- Raise and support vehicle.
- Mark the front U-joint to the pinion yoke on the front differential.
- Mark the relationship of the rear U-joint to the transfer case drive flange.
- Remove the retaining nuts and bolts from the drive flange.
- Remove the clamps and retaining bolts from the front drive axle pinion flange.
- Remove the front propeller shaft from the vehicle.
- Using tape and or a rubber band, wrap the front U-joint bearing caps to ensure the caps do not separate from the U-joint.
- Reverse procedure to install, noting the following:
- Torque front propeller shaft to the pinion flang...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2002 GMC Envoy AUTOMOBILES
Alternator, Replace
Vehicle: 2002 GMC Envoy 4.2 L6 GAS
- Disconnect battery ground cable.
- Remove air inlet duct.
- Remove heater hose brace bolt from rear of alternator.
- Disconnect alternator electrical connectors.
- Remove accessory drive belt.
- Remove alternator mounti...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2002 GMC Envoy AUTOMOBILES
General Motors Corp./Saturn Trucks -> All Wheel Drive (AWD) System Warning Lamp ->
Vehicle: 2002 GMC Envoy XL 4.2 L6 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 2002 GMC Envoy AUTOMOBILES
Radiator, Replace
Vehicle: 2002 GMC Envoy 4.2 L6 GAS
- Drain coolant from radiator into a suitable container, then disconnect upper coolant reservoir hose.
- Remove upper fan shroud bolts, then shroud.
- Disconnect and plug transmission fluid cooler lines.
- D...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2002 GMC Envoy AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2002 GMC Envoy XL 4.2 L6 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from drive belt.
- Remove t...
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COMPONENT LOCATION DIAGRAMS FOR 2002 GMC Envoy AUTOMOBILES
Component location diagrams for most 2002 GMC Envoy cars and light trucks sold in the U.S. from 1990+.
Ground Splice Pack, SP-201 Diagram for 2002 GMC Envoy XL 4.2 L6 GAS Components on diagram: |
Tail Lamp Diagram for 2002 GMC Envoy XL 4.2 L6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 2002 GMC Envoy AUTOMOBILES
OEM drawn wiring diagrams for most 2002 GMC Envoy cars and light trucks sold in the U.S.
2002 GMC Envoy XL 4.2 L6 GAS Wiring Diagram Components on diagram: |
2002 GMC Envoy XL 4.2 L6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2002 GMC Envoy AUTOMOBILES
OEM TSB listings for most 2002 GMC Envoy cars and light trucks sold in the U.S. from 1985+.
Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2002 GMC Envoy 4.2 L6 GAS Auto Systems: |
Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 2002 GMC Envoy 4.2 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2002 GMC Envoy AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2002 GMC Envoy 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 2002 GMC Envoy 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 2002 GMC Envoy 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 2002 GMC Envoy 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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