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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Mercury Grand Marquis car and truck
repair procedures including Mercury 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 Mercury Grand Marquis automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Grand Marquis 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 Mercury Grand Marquis cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
Vehicle: 2003 Mercury Grand Marquis 4.6 V8 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Grand Marquis 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 Mercury Grand Marquis cars and light trucks from 1990+
Charging Valve Locations -> Domestic Passenger Cars -> 2003-04
Vehicle: 2003 Mercury Grand Marquis 4.6 V8 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Grand Marquis 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 Mercury Grand Marquis cars and light trucks from 1990+
Automatic Temperature Control Systems Diagnosis & Testing -> Crown Victoria, Grand Marquis & Marauder -> Troubleshooting
Vehicle: 2003 Mercury Grand Marquis 4.6 V8 GAS
- Visually inspect the following for mechanical damage:
- Loose, missing or damaged compressor drive belt.
- Loose or disconnected clutch.
- Loose, misrouted or damaged vacuum lines.
- Broken or leaking vacuum control motor.
- Broken or leaking refrigerant lines.
- Obstructed in-vehicle temperature sensor.
- Disconnect in-vehicle temperature aspirator hose.
- Visually inspect the following for electrical damage:
- Open fuses.
- Blower motor inoperative.
- Compressor inoperative.
- Circuitry open/shorted.
- Disconnected, ...
CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Grand Marquis 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 Mercury Grand Marquis cars and light trucks from 1990+
Automatic Temperature Control Systems Diagnosis & Testing -> Crown Victoria, Grand Marquis & Marauder -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Symptom Based Tests -> Using Control Panel Display -> Using Scan Tool
Vehicle: 2003 Mercury Grand Marquis 4.6 V8 GAS
Accessing Diagnostic Trouble Codes
Using Control Panel Display
The control panel display may be entered at any time. Normal system operation will cease during activation of the diagnostic mode. The diagnostic mode should be exited before the vehicle is turned off.
The temperature control must be set between 40-90°F during system testing or false Diagnostic Trouble Codes (DTCs) will be displayed.
- Simultaneously press OFF and FLOOR buttons, then the AUTOMATIC button within two seconds.
- A pulse tracer will appear during testing...
CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Grand Marquis 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 Mercury Grand Marquis cars and light trucks from 1990+
Air Bag System Precautions -> Ford Motor Co. -> Arming -> 1990-91 -> 1990-92 -> 1991-92 -> 1992-93 -> 1992-94 -> 1992-96 -> 1992-98 -> 1993 -> 1993-94 -> 1993-95 -> 1994 -> 1994-95 -> 1994-96 -> 1994-97 -> 1995 -> 1995-2004 -> 1995-96 -> 1995-98 -> 1996-97 -> 1996-99 -> 1997-2000 -> 1997-2001 -> 1997-2004 -> 1997-99 -> 1998 -> 1998-2000 -> 1998-2002 -> 1999-2000 -> 1999-2001 -> 1999-2002 -> 1999-2004 -> 2000 -> 2000-01 -> 2000-04 -> 2001-02 -> 2001-03 -> 2001-04 -> 2002-03 -> 2002-04 -> 2004 -> Aerostar & Bronco -> Aspire -> Aviator -> Blackwood, Expedition & Navigator -> Built After February 2002 -> Built Before March 2002 -> Capri -> Continental -> Contour & Mystique -> Cougar -> Crown Victoria Grand Marquis & Marauder -> Econoline -> Escape -> Escort, Tracer & ZX2 -> Excursion -> Explorer & Mountaineer -> Explorer Sport & Sport Trac -> F Series -> Focus -> Freestar & Monterey -> Light Trucks & Vans -> LS -> Mark VII -> Mark VIII -> Mustang -> Passenger Cars -> Probe -> Ranger -> Sable & Taurus -> Tempo & Topaz -> Thunderbird -> Town Car -> Villager -> Windstar
Vehicle: 2003 Mercury Grand Marquis 4.6 V8 GAS
Passenger Cars
Aspire
- Disconnect battery ground cable.
- Wait one minute for back-up power supply to deplete stored energy.
- Remove restraint system diagnostic tool from driver's side air bag module electrical connector.
- Connect driver's side air bag module electrical connector.
- Install driver's side air bag module as outlined under "Component Service."
- Remove restraint system diagnostic tool from passenger's side air bag module electrical connector.
- Install passenger's side air bag module as outlined under "Component Service."
- C...
CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Grand Marquis 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 Mercury Grand Marquis cars and light trucks from 1990+
Manual Air Conditioning & Heater System Diagnosis & Testing -> Crown Victoria, Grand Marquis & Marauder -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable
Vehicle: 2003 Mercury Grand Marquis 4.6 V8 GAS
Air Bag System Disarming & Arming
Refer to and for air bag system disarming and arming proced...
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