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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 GMC Envoy 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 2003 GMC Envoy automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 GMC Envoy
- 2003 GMC Envoy 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
- 2003 GMC Envoy XL 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
- 2003 GMC Envoy XL 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:P
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Envoy 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 2003 GMC Envoy cars and light trucks from 1990+
Component Replacement & Adjustment -> Bravada, Envoy, Rainer & TrailBlazer -> Evaporator Core, Replace -> Auxiliary -> Main
Vehicle: 2003 GMC Envoy XL 4.2 L6 GAS
Main
- Remove HVAC module as outlined in "Heating, Ventilation & Air Condition (HVAC) Module, Replace."
- Remove mounting screws and separate HVAC module halves.
- Remove evaporator core and seal between halves.
- Reverse procedure to install. Torque halves mounting screws to 17 inch lbs.
Auxiliary
- Remove auxiliary heater core as outlined in "Heater Cor... "
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A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Envoy 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 2003 GMC Envoy cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 2003 GMC Envoy 4.2 L6 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Envoy 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 2003 GMC Envoy cars and light trucks from 1990+
Component Replacement & Adjustment -> Bravada, Envoy, Rainer & TrailBlazer -> Technical Service Bulletins -> 2003 Bravada, Envoy & TrailBlazer -> 2004 Envoy & TrailBlazer -> Air Conditioning Inoperative/Intermittent, Blows Warm Air -> Blower Motor Runs Continuously After Vehicle is Turned Off
Vehicle: 2003 GMC Envoy 4.2 L6 GAS
Blower Motor Runs Continuously After Vehicle is Turned Off
2004 Envoy & TrailBlazer
On some of these models equipped with manual control HVAC the blower motor runs after the vehicle has been turned off. The blower may run for just a few minutes or continuously until the battery is discharged.
This condition may be caused by a new style blower relay/resistor may sticking in the on position. When the HVAC fan blower relay has been energized, the contacts may micro-weld together. After this occurrence, the blower may not respond to the HVAC control...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Envoy 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 2003 GMC Envoy cars and light trucks from 1990+
General Service Domestic Vehicles -> 2003-04 -> Charging System -> Caravan, Town & Country & Voyager -> Cherokee, Dakota, Full Size Pickups, Liberty, PT Cruiser & Vans, Grand Cherokee & Wrangler -> Concorde, Intrepid, LHS & 300M -> DaimlerChrysler Corp. -> Ford Motor Company -> General Motors -> Neon -> Sebring & Stratus Coupe -> Sebring & Stratus Sedan & Sebring Convertible
Vehicle: 2003 GMC Envoy 4.2 L6 GAS
DaimlerChrysler Corp.
Sebring & Stratus Coupe
Never use cans to charge into high pressure side of system (compressor discharge port) or into system at high temperature, as high system pressure transferred into charging may cause it to explode.
- Attach center hose from manifold gauge set to refrigerant dispensing manifold. Turn refrigerant manifold valves completely counterclockwise to open fully, remove protective caps from refrigerant manifold.
- Screw refrigerant cans into manifold. Ensure gasket is in place and in good condition. Torq...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Envoy 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 2003 GMC Envoy cars and light trucks from 1990+
Component Replacement & Adjustment -> Bravada, Envoy, Rainer & TrailBlazer -> Radiator, Replace -> 4.2L Engine -> 5.3L Engine
Vehicle: 2003 GMC Envoy XL 4.2 L6 GAS
4.2L Engine
- Drain engine coolant into suitable container.
- Recover refrigerant as outlined in .
- Raise and support vehicle.
- Remove mounting nuts and bolts, then the radiator support shield.
- Disconnect clamp and remove outlet radiator hose from radiator.
- On models equipped with automatic transmission, disconnect quick connector and remove transmission cooler lines from radiator.
- On all models, lower vehicle.
- Remove mounting bolts and radiator support diagonal brace.
- Disconnect Secondary Air Injection (AIR) reaction pump inlet ...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Envoy 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 2003 GMC Envoy cars and light trucks from 1990+
Component Replacement & Adjustment -> Bravada, Envoy, Rainer & TrailBlazer -> Radiator, Replace -> 4.2L Engine -> 5.3L Engine
Vehicle: 2003 GMC Envoy XL 5.3 V8 GAS
4.2L Engine
- Drain engine coolant into suitable container.
- Recover refrigerant as outlined in .
- Raise and support vehicle.
- Remove mounting nuts and bolts, then the radiator support shield.
- Disconnect clamp and remove outlet radiator hose from radiator.
- On models equipped with automatic transmission, disconnect quick connector and remove transmission cooler lines from radiator.
- On all models, lower vehicle.
- Remove mounting bolts and radiator support diagonal brace.
- Disconnect Secondary Air Injection (AIR) reaction pump inlet ...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy A/C & HEATER SERVICE PROCEDURES
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