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Joshua Haynes
Joshua Haynes,
Category: Chevy
Satisfied Customers: 256
Experience:  Lead Technician/ Manager at Precision Tune Auto Care
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Hvac module removal

Customer Question

Hvac module removal
Submitted: 17 days ago.
Category: Chevy
Expert:  Joshua Haynes replied 17 days ago.

Hi, my name is ***** ***** I will assist you...please give me a moment to gather the information you need

Customer: replied 17 days ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Joshua Haynes replied 17 days ago.

HVAC CONTROL ASSEMBLY REPLACEMENT

REMOVAL PROCEDURE

  1. Remove the accessory trim plate.

  1. Remove the screws (7,2) from the HVAC control assembly.
  2. Remove the HVAC control assembly from the instrument panel.

  1. Disconnect the mode cable from the HVAC control assembly.
  2. Disconnect the temperature cable from the HVAC control assembly.
  3. Disconnect the HVAC control assembly electrical connectors.
  4. Remove the HVAC control assembly.

INSTALLATION PROCEDURE

  1. Install the HVAC control assembly.
  2. Connect the HVAC control assembly electrical connectors.

IMPORTANT: Do not bend the mode and temperature cables.

  1. Connect the mode cable to the HVAC control assembly.
  2. Connect the temperature cable to the HVAC control assembly.

  1. Install the HVAC control assembly to the instrument panel.

NOTE: Refer to Fastener Notice in Service Precautions.

  1. Install the HVAC control assembly screws.

Tighten
Tighten the screws to 1.9 N.m (18 lb in) .

  1. Install the accessory trim plate.

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Expert:  Joshua Haynes replied 17 days ago.

I trust that this is the information that you need (If it is not clear from the information, the HVAC module and the control board for HVAC are one in the same). If you have any further questions, please let me know, I'm happy to help. If you were satisfied with my service, please remember to take a moment and rate my answer using the star rating system above. Thanks so much and Happy Thanksgiving!

Customer: replied 17 days ago.
I need help on how to remove the hvac module where the evaporator is housed. Ive already removed the entire dash.
Expert:  Joshua Haynes replied 17 days ago.

Ok, I think I understand, you are talking about the air distribution box?

Customer: replied 17 days ago.
can we talk on the phone?
Expert:  Joshua Haynes replied 17 days ago.

That should be fine, I will help any way I can...

Customer: replied 17 days ago.
I basically would like to know what the hissing sound is, and or how to replace the evaporator located in the hvac/air handler module? It seams to be somewhat complicated?
Expert:  Joshua Haynes replied 17 days ago.

Once you have removed the dashboard, it is not very difficult to remove the evaporator. You must first, however, evacuate the a/c system and remove the a/c lines and the heater core lines. Once this is done and the dash is removed, there are only a few nuts that hold the air box on (these nuts are removed from the firewall on the engine bay side). When you have the air box out you simply unbolt the two halves and take out the evaporator.

Expert:  Joshua Haynes replied 17 days ago.

As far as your hissing sound, I assume that it is a vacuum leak, but that would need to be pinpointed while it is running.

Customer: replied 17 days ago.
Are you sure its the engine bay side? Doesn't seam as such, do you have a diagram?

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