Coolant level sensor
Removing
The location of the coolant level sensor on the expansion tank
1. The sensor is installed on the side wall of the expansion tank (see picture). Remove the sensor on a cold engine. Partially drain the coolant so that the expansion tank is empty.
2. Disconnect the electrical connectors from the coolant level sensor.
3. Remove the retaining ring and remove the coolant level sensor from the expansion tank. Remove the sealing ring.
4. Connect an ohmmeter to the sensor terminals and measure the sensor resistance.
5. If the sensor float is set to the top position, the sensor contacts must be open. When the float is set to the lower position, the sensor contacts should close.
Installation
1. Installation is made in sequence, return to removal. Install a new O-ring to the sensor housing. Pour coolant into the cooling system.
Coolant Temperature Gauge Sensor
The coolant temperature gauge sensor is screwed into the upper left side of the cylinder head. Do not confuse it with the coolant temperature sensor of the engine management system, which is located nearby.
Removing
1. Remove the sensor on a cold engine. Partially drain the coolant from the cooling system.
2. Disconnect the electrical connector from the sensor, unscrew the sensor from the cylinder head and remove the O-ring.
Installation
1. Installation is made in sequence, return to removal. Install a new O-ring on the sensor. Add coolant to the cooling system.