Removal Procedure
- Relieve the coolant pressure.
- Loosen the 2 air intake duct clamps and remove the air intake
duct.
- Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine
Electrical.
- Disconnect the engine coolant temperature (ECT) sensor.
- Using a deep well socket and an extension, remove the sensor.
Installation Procedure
- Coat the engine coolant
temperature (ECT) sensor threads with sealer GM P/N 9985253
or equivalent.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the sensor
in the engine.
Tighten
Tighten the sensor to 23 N·m (17 lb ft).
- Connect the ECT sensor.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine
Electrical.
- Install the air intake duct and tighten the 2 air intake
duct clamps.
- Start the engine.
- Check for leaks.
- Check the coolant level.