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What step are taken to remove a dash from a 1996 lincon towncarto access the a/c heater blend door actuator

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  • Lincoln Master
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What is the issue? May not be the blend door motor. Big job.

The climate control assembly has three control knobs (18519):

  • The airflow control or function selector knob controls vacuum and electrical applications.
  • The temperature control knob, attached to the potentiometer, controls the position of the A/C electronic door actuator motor (19E616) mounted on heater air plenum chamber (18471).
  • The blower motor control knob, attached to the heater blower motor switch (18578), provides four speeds of blower motor operation.
------------------------------------------------------------------------------------
A/C Electronic Door Actuator Motor Removal
  1. Disconnect battery ground cable (14301). Refer to Section 14-01 .
  1. Remove instrument panel (04320). Refer to Section 01-12 .
Instrument Panel Removal
  1. Position wheels straight ahead.
  2. Disconnect battery ground cable (14301). Refer to Section 14-01 .
  3. Raise vehicle on hoist. Refer to Section 00-02 .
  4. Remove RF wheel and tire assembly. Refer to Section 04-04 .
  5. Remove retaining nut in radiator coolant recovery reservoir area.
  6. Remove bolt retaining front fender apron (16054) to front fender (16005).
  7. Position front fender splash shield out of the way.
  8. Lower vehicle.
  9. Tag and remove wiring connectors.
  10. Remove retaining screw in parking brake control (2780). Remove parking brake control.
  11. Remove screw retaining instrument panel steering column opening cover reinforcement (04502).









  12. Remove steering column assembly. Refer to Section 11-04 .
  13. Remove from the LH and RH cowl side trim panels (02345).
  14. Remove lower cowl side trim panels.
  15. Tag and disconnect wiring connectors in LH and RH cowls.
  16. Remove ground wire assembly.
  17. Remove retaining rivet in the passenger side of the instrument panel (04320).
  18. Unsnap the instrument panel finish panel (04338), center and RH.
  19. Unsnap the instrument panel finish panel, (LH).
  20. Remove and disconnect the radio chassis (18806).
  21. Remove retaining screw in the instrument panel finish panel.
  22. Position the instrument panel finish panel out of the way.
  23. Tag and disconnect the wiring connectors.
  24. Remove retaining screw in the passenger side air bag module (044A74).
  25. Disconnect the electrical connector to the passenger side air bag module.
  26. Remove and disconnect the instrument panel upper finish panel (044A90).
  27. Remove instrument panel to cowl brace retaining screw.
  28. On Crown Victoria, Grand Marquis, remove screws retaining instrument panel finish panel (044D70) and remove instrument panel finish panel.
  29. Remove retaining nut on the instrument LH and RH lower finish panel.
  30. Remove instrument panel cowl brace (045D56).
  31. Disconnect vacuum hose on the harness assembly.
  32. Remove upper and lower screws retaining instrument panel finish panel to dash panel (01610).


  1. Disconnect the A/C electronic door actuator motor electrical connector.
  2. Remove four A/C electronic door actuator motor retaining screws.
  3. Remove A/C electronic door actuator motor (19E616).

Posted on Jun 14, 2011

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2 Answers

How to remove the dash to get at the blend door actuator on a 1996 s10 pick up


There is, you just don't have the tools. I take them out from under the dash.

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Both are only accessible by complete removal of the instrument panel(dash).
The blend door actuator can be tested with a Chrysler factory scan tool hooked up to the DLC(data link connector). If blend door actuator is working when tested with the factory scan tool, then blend door itself is at fault.
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If you are getting heat only on the pass. side then I believe the blend door has failed. Dodge has a fix and the job is not easy as almost the whole dash needs to come out in order to get to the heater box and the door. I have read that a simple flush of the heater core will cure it, But that diidn't work for me. I think because dual climate control was an option the door is set up to control the two sides of the cab. When it fails only the pass. side gets heat.

Unfortunatly you do have to remove the dash to access any of the blend door or fresh air door actuators
here is a step by step proceedure this takes aprox 5 hrs in a shop so plan on a weekend at home good luck

FLOOR - DEFROST DOOR ACTUATOR

REMOVAL

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

Disconnect and isolate the battery negative cable.
Remove the instrument panel assembly from the vehicle.

zjlimited_318.jpg

Fig. HVAC housing, dual zone shown (single zone similar)-nut (1), passenger blend door actuator (2), nut (3), inlet baffle (4), recirc door actuator (5), recirc air door (6), driver side blend door actuator (7), HVAC housing (8), bolt (9), defroster door actuator (10), mode door actuator (11)

Remove the electrical connector from the actuator.
Remove the mounting screws from the actuator.
Remove the actuator from the HVAC housing.

INSTALLATION
Install the floor-defrost door actuator to the HVAC assembly.
Install the mounting screws and tighten to 2.2 Nm (20 in. lbs.) .
Install the actuator electrical connector.
Install the instrument panel assembly into the vehicle.
Connect the battery negative cable.

I suggest check (or replace if is necessary), the blend door it is a huge project you have to remove the dash board. There is a repair kit available either way it is a 8 hr shop time project.

Hope helps.

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The blend door is stuck in cold position. That usually happens because the blend door actuator has failed.

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