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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM - 4.2L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENTREMOVAL PROCEDURE
2006 Isuzu Ascender S, 5.3 M, 4WD

Removal Procedure

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
    NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
  1. Turn the engine OFF.
    2. CAUTION: Refer to BATTERY DISCONNECT CAUTION in Cautions and Notices.
  2. Disconnect the negative battery terminal.
  3. Drain coolant below the level of the ECT sensor. Refer to Draining and Filling Cooling System (LL8) or Draining and Filling Cooling System (LH6, LS2) in Engine Cooling.
    4. Fig 1: Locating ECT Sensor Electrical Connector
    GM726805Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the ECT sensor electrical connector (1).
  5. Remove the drive belt and the generator. Refer to Generator Replacement (4.2L Engine) or Generator Replacement (5.3L and 6.0L Engines) in Engine Electrical.
    6. Fig 2: Locating ECT Sensor
    GM726806Courtesy of GENERAL MOTORS CORP.
  6. Carefully remove the ECT sensor (1).
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.