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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 309 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Heater Core Replacement

Heater Core Replacement

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Fig 1: Heater Core And Components
GM1686236Courtesy of GENERAL MOTORS CORP.
Heater Core Replacement

Callout Component Name

Preliminary Procedure

  1. Remove the HVAC module. Refer to Air Conditioning and Heater Module Assembly Removal and Installation (Non-HP2) , Air Conditioning and Heater Module Assembly Removal and Installation (HP2) .
  2. Disconnect the wiring harness retainer from the heater core cover.
1 Heater Core Cover Screw
CAUTION:

Refer to Fastener Caution .


Tighten 
1.5 N.m (14 lb in)
2 Heater Core Cover
Tighten 
1.5 N.m (14 lb in)
3 Heater Core Pass Through Seal
4 Heater Core
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