Question about 1999 Chevrolet Silverado 1500

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HEARER CORE REPLACEMENT - 1999 Chevrolet Silverado 1500

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  • dst5282 Dec 31, 2010


  • dst5282 Dec 31, 2010



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Heater Core Removal & Installation Heater core removal HEARER CORE REPLACEMENT - 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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Posted on Dec 31, 2010


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1 Answer

When bypassing hearer core do I have to mess with

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Go to and "Shop" for your part. When you find it look on right side of page and click on "Get instructions installing..." Then register to become a member and BINGO! You'll get your instructions.

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I have a 1993 Jeep Wrangler YJ...My heater core needed replacement when I bought it about a year ago. I made the mistake of taking apart the dash to get to the heater core. DO NOT DO THIS!!! It is actually 4 screws that you must take out from the inside of the engine compartment on the firewall. Then it will come right out. Have fun!!!

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