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car tech
car tech, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 3332
Experience:  25 years as shop owner and master tech
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1999 Cadillac Deville: heater core..me that the entire Dashboard

Customer Question

I need more detailed instructions on how to replace the heater core for my 1999 Cadillac Deville. Everyone tells me that the entire Dashboard must be removed first. I hope I don't have to do this. I have already removed the glove box. Please help.
Submitted: 6 years ago.
Category: Cadillac
Expert:  car tech replied 6 years ago.
let me pull up the info on your car
Customer: replied 6 years ago.
OK
Expert:  car tech replied 6 years ago.
than are correct the dash has to be removed would you still like info on the removal of the dash and heater core
Customer: replied 6 years ago.
Yes please
Expert:  car tech replied 6 years ago.

first step

 

Instrument Panel Storage Compartment Replacement

Removal Procedure

    Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

    Air bag deployment
    Personal injury
    Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
    Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
    If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

     

  1. Disable the SIR system. .
  2. Open the instrument panel storage compartment door.
    Object Number: 310652  Size: LH

  3. Remove the 4 fasteners (2,7) that retain the instrument panel storage compartment assembly (8) to the instrument panel.
  4. Remove the 2 fasteners from inside the instrument panel storage compartment.
  5. Partially remove the instrument panel storage compartment assembly (8).
  6. Disconnect the electrical connectors.
  7. Remove the instrument panel storage compartment
Expert:  car tech replied 6 years ago.

step 2

 

Instrument Panel Insulator Panel Replacement - Right Side

Removal Procedure


    Object Number: 105525  Size: SH

  1. Remove the fasteners to disengage the insulator from the lower instrument panel.
  2. Disconnect the electrical connector(s).
  3. Remove the insulator panel (3).
Expert:  car tech replied 6 years ago.

step 3

 

Object Number: 305022  Size: SH

  • Disconnect the vacuum and electrical connectors from the programmer (1).
    Object Number: 305018  Size: SH

  • Remove the programmer (1) from the vehicle.
  • Expert:  car tech replied 6 years ago.

    here is the rest the entire dash does not have to come out just what i have listed

     

  • Disconnect the driver air mix actuator (2).
  • Disconnect the passenger air mix actuator (3).
    Object Number: 305037  Size: SH

  • Remove the heater core cover.
    Object Number: 378606  Size: SH

  • Remove the inlet and outlet heater hoses from the heater core.
    Object Number: 381380  Size: SH

  • Remove the heater retaining screws.
  • Remove the heater core.
  • car tech and 3 other Cadillac Specialists are ready to help you
    Customer: replied 6 years ago.
    So far so good
    Expert:  car tech replied 6 years ago.
    if you need anymore help just let me know