Engine Temperature Sensor

2004 Volvo V70 L5-2.4L VIN 64 B5244S6SECTION Engine Temperature Sensor





Engine temperature sensor

Removal

Engine temperature sensor, 5-cylinder




- Jack up the car.
- Remove protection cover from under engine.
- Drain the coolant as described in Replacing radiator/charge air cooler (CAC) .
- Lower the car.
- Release coolant hose from thermostat housing using pliers.
- Remove thermostat housing.
- Remove sensor.

Engine temperature sensor, 6-cylinder




- Jack up the car.
- Remove protection cover from under engine.
- Drain the coolant as described in Radiator / charge air cooler (CAC), replacement .
- Lower the car.
- Loosen oil reservoir for servo pump as described in.
- Remove coolant reservoir and put it to one side.
- Remove screws and outer/upper timing-gear casing.
- Remove screws and wire channel.
- Disconnect connector.
- Remove 4 screws and thermostat housing.
- Remove sensor and wires.

Installation

Engine temperature sensor, 6-cylinder
- Install thermostat housing sensor.
- Position wires in slot on thermostat housing.

Note! The white marks should be positioned in lower opening of slot, from underneath.

- Position gasket on thermostat housing correctly and install thermostat housing using two of the screws.
- Position thermostat housing correctly and tighten the four screws.
- Position wire channel correctly and position wire in channel.
- Tighten screw on wire channel.
- Connect the connector.
- Install outer/upper timing-gear casing.
- Install coolant reservoir.
- Install oil reservoir for servo pump as described in.

Follow-on work, 6-cylinder
- Fill up coolant.
- Warm the engine until the thermostat opens.
Switch engine off and check the level. Re-fill if necessary.
- Check for leaks.
- Check in VIDA vehicle communication (read-out of parameter values), for current engine system, that the engine temperature shown appears correct.

Engine temperature sensor, 5-cylinder
Install in reverse order.

Follow-on work, 5-cylinder
- Fill up coolant.
- Warm the engine until the thermostat opens.
Switch engine off and check the level. Re-fill if necessary.
- Check for leaks.
- Check in VIDA vehicle communication (read-out of parameter values), for current engine system, that the engine temperature shown appears correct.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.