Astra J
Engine Coolant Temperature Sensor Replacement (1.7L Diesel LPL)Removal Procedure
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| Warning: With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution to boil instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the cap. Serious bodily injury may result. |
| 1. | Open the hood. |
| 2. | Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . |
| 3. | Drain coolant fluid. Refer to Cooling System Draining and Filling . |
| 4. | Lower the vehicle. |
| 5. | Unclip the engine control module bracket and hang the engine control module aside. |
Note: Place a container beneath to collect any draining coolant. |
| 6. | Disconnect the engine coolant temperature sensor electrical connector (3). |
| 7. | Remove the engine coolant temperature sensor (2) from the engine coolant thermostat housing (1). |
Installation Procedure
| 1. | Clean the sealing surfaces. |
Caution: Refer to Fastener Caution . |
| 2. | Apply sealing compound to the engine coolant temperature sensor (2). |
| 3. | Install the engine coolant temperature sensor to the engine coolant thermostat housing (1) and tighten to 22 N·m (16 lb ft) . |
| 4. | Connect the engine coolant temperature sensor electrical connector (3). |
| 5. | Clip the engine control module to the engine control module bracket. |
| 6. | Fill up coolant fluid. Refer to Cooling System Draining and Filling . |
| 7. | Close the hood. |
