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99 BLAZER: REPLACE THE HEATER CORE..DETAILED INSTRUCTIONS..Chevrolet

Resolved Question:

NEED TO REPLACE THE HEATER CORE IN OUR 99 BLAZER, NEED DETAILED INSTRUCTIONS PLEASE.

Optional Information:
1999 Chevrolet BLAZER 4.2






Submitted: 11 years ago.
Category: Car
Expert:  john replied 11 years ago.

Heater Core Replacement


Removal Procedure


  1. Remove the heater/vent module. Refer to Heater/Vent Module Replacement .

    Click here for detailed picture of above image.

  2. Remove the heater core access cover screws.
  3. Remove the heater core access cover.

    Click here for detailed picture of above image.

  4. Remove the heater core from the heater/vent module.

Installation Procedure



    Click here for detailed picture of above image.

  1. Install the heater core to the heater/vent module.

    Click here for detailed picture of above image.


    Notice


    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.



  2. Install the heater core access cover. Tighten

    Tighten the heater core access cover screws to 1.9 N·m (17 lb in).


  3. Install the heater/vent module. Refer to Heater/Vent Module Replacement .












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