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Home >> Hummer >> 2007 >> H3 Standard >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Repair Instructions >> Coolant Heater Replacement (With LLR) >> Installation Procedure

Installation Procedure

    Fig 1: View Of Coolant Heater
    GM1313630Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Component Fastener Tightening Notice .
  1. Install the coolant heater into the engine block.

    Tighten:  Tighten the coolant heater to 50 N.m (37 lb ft).

    2. Fig 2: Locating Coolant Heater & Cord
    GM1313631Courtesy of GENERAL MOTORS CORP.
  2. Connect the coolant heater cord (4) to the coolant heater (6).
  3. Install the left wheelhouse liner. Refer to Wheelhouse Panel Replacement (Front) or Wheelhouse Panel Replacement (Rear) .
  4. Lower the vehicle.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill)  or Cooling System Draining and Filling (Vac-N-Fill) .
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