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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Repair Instructions >> Thermostat Replacement >> Installation Procedure

Installation Procedure

  1. Install the thermostat.
  2. Install the coolant outlet.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the bolt and the bolt/stud.

    Tighten 

    Tighten the bolt and the bolt/stud to 25 N.m (18 lb ft).

    Fig 1: Installing Thermostat
    G01646429Courtesy of GENERAL MOTORS CORP.
  4. Install the ground lead to the bolt/stud.
  5. Install the air cleaner assembly. Refer to ENGINE CONTROLS - REMOVAL & INSTALLATION in Engine Controls-4.3L.
  6. Refill the coolant. Refer to DRAINING AND FILLING COOLING SYSTEM .
  7. Start the engine. After the engine reaches normal operating temperature, check for coolant leaks.
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