V70 XC AWD L5-2.4L Turbo VIN 56 B5254T (1998)
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
JA14 Replacing Engine Coolant Temperature (ECT) Sensor:
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Drain off coolant
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Remove thermostat housing (two TORX 40 screws). Disconnect connector.
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Disconnect terminal pins from connector (see image) in order to thread the wiring through a ring wrench.
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Remove temperature sensor and replace.
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Test sensor.
Assemble in reverse order.
CAUTION: Do not forget to top up coolant. Then run engine to normal operating temperature and check coolant level.
