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Removal & Installation

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition OFF. Remove the engine cover. See ENGINE COVER . Drain the coolant below the level of the ECT sensor. See Fig 1 and Fig 2 . Disconnect the electrical connector. Carefully remove the ECT sensor.
  2. Coat the threads with Sealer (GM 9985253). Install the ECT sensor. Connect the ECT sensor harness connector to the ECT sensor. Refill the cooling system. Install the engine cover.
Fig 1: Locating ECT Sensor (4.3L Shown)
G00147742Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating ECT & MAP Sensors & TAC Motor (8.1L)
G00147785Courtesy of GENERAL MOTORS CORP.
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