2001 Mercury Grand Marquis A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 2001 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 2001 Mercury Grand Marquis cars and light trucks from 1990+

Automatic Temperature Control Systems Diagnosis & Testing -> Crown Victoria, Grand Marquis & Town Car -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Using Control Panel Display -> Using Scan Tool
Vehicle: 2001 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 60-80°F during system testing or false Diagnostic Trouble Codes (DTCs) will be displayed.

  • Simultaneously press Off and Floor buttons, then the Automatic button.
  • Any DTCs should be displayed on the panel. A pulse tracer wi...

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A/C & HEATER SERVICE PROCEDURES FOR 2001 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 2001 Mercury Grand Marquis cars and light trucks from 1990+

Component Replacement & Adjustment -> Passenger Cars -> Technical Service Bulletins -> 1998-2000 Town Car -> 1998-99 Escort -> 1999-2000 Continental, LS & Town Car -> 2000 Crown Victoria, Grand Marquis, LS, Town Car, Sable & Taurus -> 2000 Focus -> 2000 LS -> 2000 Sable & Taurus -> 2001 Crown Victoria & Grand Marquis -> 2001-02 LS & 2002 Thunderbird -> All Vehicles -> Blow Motor Stays On High -> Compressor Cycling Hesitation Or Surge -> Defrost Door Fluttering -> Engine Overheating -> Focus -> Front Cowl Evaporator Case Water Leak -> High Pitched Whistle From Plenum -> Inaccurate Ambient Temperature Display -> Incorrect R-134a Charge Level Label -> Inoperative Blower Motor -> Lack Of Cooling -> Repeat Heater Core Failure
Vehicle: 2001 Mercury Grand Marquis 4.6 V8 GAS

High Pitched Whistle From Plenum

2001 Crown Victoria & Grand Marquis

On some of these models there may be a high pitched whistler noise from the air conditioning plenum while driven at more than 55 mph with air conditioning in Off or Max A/C settings.

This condition may be caused by air flow over the air inlet duct drain flap door.

To correct this condition, proceed as follows:

  • Raise and support vehicle, then remove righthand front tire and wheel assembly.
  • Remove rear mounting screw and peel fender apron back a...

CLICK HERE TO GET FULL ACCESS TO 2001 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 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 2001 Mercury Grand Marquis cars and light trucks from 1990+

Computer Relearn Procedures -> Ford Motor Co. -> 1999-2002 -> 2003-04 -> Automatic Data Transfer -> Except 1999-2002 -> Manual Data Entry -> Powertrain Control Module (PCM)
Vehicle: 2001 Mercury Grand Marquis 4.6 V8 GAS

Powertrain Control Module (PCM)

Except 1999-2002

Disconnect negative battery cable for a minimum of five minutes. After clearing memory, it is required to drive vehicle a minimum of 10 miles to allow PCM time to relearn operating strategy.

1999-2002
Automatic Data Transfer
  • Prior to removing old PCM, connect a suitably programmed scan tool to Data Link Connector (DLC).
  • Follow scan tool manufacturers' instructions to download data from old PCM.
  • Install new PCM and connect scan tool to DLC.
  • Follow scan tool manufactur...

CLICK HERE TO GET FULL ACCESS TO 2001 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 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 2001 Mercury Grand Marquis cars and light trucks from 1990+

Component Replacement & Adjustment -> Passenger Cars -> Water Pump, Replace -> 2.0L DOHC Engine -> 2.0L Engine -> 2.0L SOHC Engine -> 2.5L Engine -> 3.0L DOHC Engine -> 3.0L Engine -> 3.8L Engine -> 3.9L Engine -> 4.6L Engine -> Continental, Crown Victoria, Grand Marquis & Town Car -> Cougar -> Escort -> Focus -> LS & Thunderbird -> Mustang -> Sable & Taurus
Vehicle: 2001 Mercury Grand Marquis 4.6 V8 GAS

Cougar
2.0L Engine
  • Drain engine coolant into suitable container.
  • Raise and support vehicle.
  • Remove righthand front wheel and lower splash shield.
  • Lower vehicle.
  • Disconnect coolant expansion tank hoses.
  • Loosen water pump pulley mounting bolts and remove accessory drive belt.
  • Remove mounting bolts and water pump pulley.
  • Remove mounting bolts and water pump bolts by turning it 180º
  • Reverse procedure to install.
2.5L Engine
  • Remove battery and air cleaner.
  • Remove thermostat housing and ...

CLICK HERE TO GET FULL ACCESS TO 2001 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 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 2001 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: 2001 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 2001 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 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 2001 Mercury Grand Marquis cars and light trucks from 1990+

A/C & Cooling System Maintenance -> Ford Motor Co. -> 1990-2002 Ford Crown Victoria & Mercury Grand Marquis
Vehicle: 2001 Mercury Grand Marquis 4.6 V8 GAS

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