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GMC CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about GMC 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
automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR GMC 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 cars and light trucks from 1990+
Component Replacement & Adjustment -> Light Duty Trucks & Vans -> COMPRESSOR, REPLACE -> ASTRO & SAFARI -> BRAVADA & S/T-10/15 -> C & K SERIES -> G SERIES -> LUMINA APV, SILHOUETTE & TRANS SPORT -> V6 Engines
Vehicle: 1993 GMC C2500 Pickup Sierra XC 7.4 V8 GAS
ASTRO & SAFARI
V6 Engines
- Disconnect battery ground cable, then recover refrigerant from A/C system.
- Remove the engine cover, then disconnect electrical connectors from compressor and clutch.
- Loosen idle pulley and disconnect compressor drive belt.
- Remove compressor manifold retaining bolt and manifold from rear of compressor, then cap all connections.
- Remove carburetor vacuum break to provide clearance, if necessary.
- Remove bolts securing compressor to mounting bracket, then the compressor, Fig. .
- Reverse procedure...
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BRAKE SERVICE PROCEDURES FOR GMC AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC cars and light trucks from 1990+.
Anti-lock Brakes -> Four Wheel Anti-Lock Brake System -> Diagnosis & Testing -> 1992-95 -> 1992-95 Except S & T Series w/VCM & VCM-A -> 1992-95 Models & 1996 S & T Series w/VCM -> 1995 S & T Series w/VCM & VCM-A & 1996 -> 1996 -> 1996 Except S & T Series w/VCM -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Trouble Code Interpretation -> Except S & T Series w/VCM & VCM-A -> S & T Series w/VCM & VCM-A
Vehicle: 1994 GMC C3500 Pickup Sierra 5.7 V8 GAS
Accessing Diagnostic Trouble Codes
Except S & T Series w/VCM & VCM-A
1992-95
Diagnostic trouble codes can be read using a TECH 1 scan tool or by jumping terminal "H" to terminal "A" of the Assembly Line Diagnostic Link (ALDL) connector, Fig. , and counting the Anti-Lock lamp flashes. The terminals must be jumped for a few seconds before the diagnostic trouble codes will begin to flash.
1996
Diagnostic trouble codes can only be read by connecting a suitable scan tool to the Data Link Connector (DLC), Fig. . Follow the instructions provided by the scan tool manufacturer.
S & T Seri...
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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Pressure Relief -> Except Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Tracker & Uplander -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 2004 GMC Yukon XL 2500 6.0 V8 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.
Engines Less Fuel Pressure ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC cars and light trucks from 1990+.
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1996 GMC K1500 Pickup Sierra 5.7 V8 GAS
Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.
Disassemble
- Support propeller shaft in a line horizontal with table of a press.
- Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
- On models equipped with external snap ring retainers, proceed as follows:
- Disassemble snap rings by ...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR GMC AUTOMOBILES
Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported GMC cars and light trucks sold in the U.S. from mid 1990's+.
Relearn Procedures -> Keyless Entry Transmitter Or DIC Method -> Scan Tool Method
Vehicle: 2009 GMC Sierra 2500 HD SLT 6.0 V8 GAS
Keyless Entry Transmitter Or DIC Method
- On models with standard ignition switch, place the ignition switch in the On position.
- On models with keyless ignition switch, place the ignition switch in the Accy position.
- On all models, using the keyless entry transmitters press the lock and unlock buttons at the same time until a horn chirp sounds indicating the learn mode has been actuated. The left front turn signal will also be illuminated.
- Using the DIC (Driver Information Center) press and release the Info button until the Tire Learn message is indicated on the DIC display. Depres...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported GMC cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1995 GMC G35/G3500 VAN Vandura 4.3 V6 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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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES
Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. as equipped to the current model year.
Cabin Air Filter Service -> General Motors Corp./Saturn -> 1999-2007 Silverado, Sierra, 2000-07 Denali, Suburban, Tahoe, Yukon, Yukon XL, 2001-07 Escalade & 2002-07 Avalanche
Vehicle: 2002 GMC Yukon XL 1500 5.3 V8 FLEX
Under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.
- Remove the righthand instrument panel hush panel.
- Remove the A/C and heater modul...
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MAINTENANCE LAMP RESET PROCEDURES FOR GMC AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Air Cleaner Restriction Indicator ->
Vehicle: 1998 GMC Jimmy 4.3 V6 GAS
An air cleaner restriction indicator, Fig. , is located in the intake duct between the MAF sensor and the air cleaner assembly.
If the window shows green, no service is required at this time. However, if...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1993 GMC C3500 Pickup Sierra 7.4 V8 GAS
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SERPENTINE BELT SERVICE PROCEDURES FOR GMC AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1995 GMC G35/G3500 VAN Vandura 6.5 V8 DIESEL
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COMPONENT LOCATION DIAGRAMS FOR GMC AUTOMOBILES
Component location diagrams for most GMC cars and light trucks sold in the U.S. from 1990+.
 Body Components Diagram for 2007 GMC Sierra 1500 SLE 6.0 V8 GASComponents on diagram: |
 Rear Seat Harness Diagram for 2001 GMC Yukon 4.8 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR GMC AUTOMOBILES
OEM drawn wiring diagrams for most GMC cars and light trucks sold in the U.S.
 1995 GMC K1500 Suburban 6.5 V8 DIESEL Wiring DiagramComponents on diagram: |
 2001 GMC Sonoma 2.2 L4 FLEX Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR GMC AUTOMOBILES
OEM TSB listings for most GMC cars and light trucks sold in the U.S. from 1985+.
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Document: REPL GLOW PLUG WHEN INJ NOZZLE FAILS - DIESEL Vehicle: 1989 GMC G15/G1500 VAN Vandura 4.3 V6 GAS Auto Systems: |
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Document: COMMUNICATION STRATEGY OF SERVICE INFORMATION / STRATEGY BASED DIAGNOSTICS - REVISED Vehicle: 1986 GMC C35/C3500 Pickup 5.7 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR GMC AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC 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 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 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 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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