LS V8-3.9L VIN A (2003)
Engine Temperature Sensor: Service and Repair
CYLINDER HEAD TEMPERATURE (CHT) SENSOR
REMOVAL
1. Disconnect the battery ground cable.
2. Remove the intake manifold.
3. Remove the components in the order indicated in the illustration and table.
Item 2: CHT Sensor Removal Note
1. The tip of the CHT contacts the cylinder head at the bottom of the hole. When removed, it will be slightly crushed. This is a normal condition.
INSTALLATION
1. To install, reverse the removal procedure.
Item 2: CHT Sensor Installation Note
1. The CHT sensor is not to be reused. Always install a new sensor.
