Question about 1997 Mercury Grand Marquis

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How do i change the heater core - 1997 Mercury Grand Marquis

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Big job. instrument panel has to come out.

Section 01-12: Instrument Panel 1997 Crown Victoria/Grand Marquis Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 05/16/2000
Instrument Panel SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Radio Removing Tool T87P-19061-A
Removal and Installation

  1. Raise vehicle on hoist.
  2. Remove RF wheel and tire assembly. Refer to Section 04-04.
  3. Remove three nuts in radiator coolant recovery reservoir area.
  4. Remove bolt retaining front fender apron (16054) to front fender (16005).
  5. Position front fender splash shield out of the way.
  6. Lower vehicle.
  7. Tag and remove main harness connector from jumper harness (located in front of blower motor).
  8. Remove LH instrument panel lower insulator (043A89) and instrument panel lower insulator (043A88).
  9. Remove steering column. Refer to Section 11-04.


    Instrument Panel Lower Insulators


    how do i change the - r11570a.gif


    Item Part Number Description 1 04320 Instrument Panel 2 N807296-S Cap 3 388577-S Push Pin (6 Req'd) 4 043A88 Instrument Panel Lower Insulator, RH 5 043A89 Instrument Panel Lower Insulator, LH 6 - Module Bracket (Part of Module) 7 13466 Miniature Bulb 8 043A88 Instrument Panel Lower Insulator, RH 043A89 Instrument Panel Lower Insulator, LH
  10. Remove RH cowl side trim panel (02344) and LH cowl side trim panels (02345).
  11. Tag and disconnect wiring connectors in LH and RH cowls.
  12. Remove ground wire located on LH cowl side.
  13. Remove RH instrument panel upper moulding (04268) and LHinstrument panel moulding (04389) from instrument panel (04320) by pulling away from instrument panel and snapping out of retainers. Disconnect wiring connectors as required.
  14. Remove glove compartment (06010) as described.
  15. Remove two screws from center instrument panel support bracket at left side of glove compartment opening.
  16. Remove instrument panel upper finish panel (044A90) and disconnect the A/C sunload sensor (19E663) if equipped.


    Instrument Panel Finish Panels


    r11573b.gif


    Item Part Number Description 1 044A90 Instrument Panel Upper Finish Panel 2 04320 Instrument Panel 3 04268 Instrument Panel Upper Moulding, RH 4 06081 Glove Compartment Lock Set 5 061A40 Glove Compartment Door Cover 6 N807122-S411 Screw (2 Req'd) 7 N807122-S411 Screw (10 Req'd) 8 - Parking Brake Release Handle (Part of 2780) 9 04459 Instrument Panel Steering Column Cover 10 04502 Instrument Panel Steering Column Opening Cover Reinforcement 11 04389 Instrument Panel Moulding, LH 12 044D71 Instrument Panel Cluster Finish Panel A - Tighten to 2.1-2.9 Nm (19-25 Lb-In) B - Tighten to 4-6 Nm (36-53 Lb-In)
  17. Remove five screws retaining instrument panel.


    Instrument Panel


    r11571a.gif


    Item Part Number Description 1 N802539-S100 Nut (5 Req'd) 2 383554-S100 Rivet (2 Req'd) 3 01631 Vehicle Identification Plate 4 01544 Brake Pedal Support 5 N805632-S36 Bolt 6 N800854-S2 J Nut (2 Req'd) 7 N806030 Stud 8 N602480-S55 Nut 9 04320 Instrument Panel 10 N807122-S411 Screw (5 Req'd) 11 - Steering Column Retaining Nut 12 - Bolt (Part of 3F659) 13 3F659 Brake Pedal Support Steering Column Brace 14 N606675-S2 Bolt (3 Req'd) 15 04502 Instrument Panel Steering Column Opening Cover Reinforcement 16 N806067-S2 Bolt (2 Req'd) 17 N620482-S36 Nut 18 N801366-S2 Stud 19 045D56 Instrument Panel Cowl Brace 20 N606115-S100 Bolt (3 Req'd) A - Tighten to 9-14 Nm (80-123 Lb-In) B - Tighten to 10-14 Nm (89-123 Lb-In) C - Tighten to 2-3 Nm (18-26 Lb-In) D - Tighten to 47-63 Nm (35-46 Lb-Ft) E - Tighten to 45-70 Nm (34-51 Lb-Ft) F - Tighten to 22-34 Nm (17-25 Lb-Ft)
  18. Disconnect automatic temperature control sensor hose and elbow (19D888) from evaporator housing, if equipped.
  19. Disconnect vacuum hose harness assembly.
  20. On left side of engine compartment, disconnect all connectors and push harness through bulkhead.
  21. NOTE: The following steps should be performed be two technicians.

    Remove one nut and one bolt retaining left side of instrument panel finish panel (044D70) to cowl panel. Remove one nut retaining right side of instrument panel to cowl panel.
  22. Remove instrument panel finish panel from vehicle.

Posted on Jan 11, 2011

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For heater core replacing procedure. I suggest you to go through this related help links.Its all complete step by step procedure: ----How to replace heater core for All car models?

Click the link below: ---

http://technoanswers.blogspot.com/2011/11/how-to-replace-heater-core-for-all-car.html

--------------
How to Flush Heater Core?

http://schematicsdiagram.blogspot.com/2011/12/how-to-flush-heater-core.html

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http://howtobyme.blogspot.com/2011/12/how-to-remove-heater-core-on-2008-honda.html
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Mar 05, 2012 | 1998 Oldsmobile Aurora

1 Answer

Heater core leak


change the heater core!
If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core.
Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Jan 05, 2011 | 1986 Nissan 300ZX

1 Answer

No flo through heater core


change out the heater core!
If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core.
Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 24, 2010 | 1991 Subaru Loyale

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Check the relays, fans, change the thermostst, now about to the change heater core. it sill was over heating and water came from the heater core on to the floor board.


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 22, 2010 | 2002 Chevrolet Impala

1 Answer

Changing a heater core


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

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2 Answers

Broken heater coil


If you mean the heater core is leaking. Here is how to change it:

Heater Core Removal & Installation Heater core removal gm-10-00-589.gif

To Remove:
  1. Remove the HVAC assembly.
  2. Remove the heater core cover screws.
  3. Remove the heater core cover from the HVAC assembly.
  4. Remove the heater core gasket from the core.
  5. Remove the heater core from the HVAC module assembly.
To Install:
  1. Install the heater core to the HVAC module assembly.
  2. Install the heater core cowl gasket to the HVAC module assembly.
  3. Install the heater core cover and screws to the HVAC module assembly.
  4. Install the HVAC module assembly to the vehicle.
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Oct 18, 2010 | 2000 Chevrolet Silverado 1500

1 Answer

Change a heater core


  1. Disconnect battery ground cable.
  2. Remove glove box attaching screws, then the glove box.
  3. Remove lower sound insulator attaching screws and nuts, then the lower sound insulator.

Heater And A/C Programmer And Actuators
  1. Remove programmer as follows:


  1. Remove programmer shield attaching screws, then the programmer shield.
  2. Disconnect threaded rod from programmer.
  3. Disconnect programmer electrical and vacuum connector, then remove programmer.


  1. Disconnect body control module electrical connector, then remove module attaching screws and module.
  2. Remove relay panel from module assembly, then the module assembly heater core cover.
  3. Disconnect heater hoses from heater core.
  4. Remove two heater core attaching screws, then the heater core.
  5. Reverse procedure to install.

Oct 29, 2009 | 1995 Cadillac DeVille

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