LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1418 (Engine Control System - 4.2L (Introduction)) >> Repair Instructions >> Engine Coolant Temperature (ECT) Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    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 (LM4) in Engine Cooling.
    4. Fig 1: Disconnecting/Connecting 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 Engine) in Engine Electrical.
    6. Fig 2: Removing/Installing ECT Sensor
    GM726806Courtesy of GENERAL MOTORS CORP.
  6. Carefully remove the ECT sensor (1).
scientia non olet · About LEMON Manuals