ECT SENSOR
REMOVAL
1) Disconnect battery negative cable at battery.
2) Drain coolant referring to Section 6B.
3) Disconnect coupler from ECT sensor.
4) Remove ECT (1) sensor from water outlet pipe.
WARNING:
To help avoid danger of being burned, do not remove
radiator cap while engine and radiator are still hot.
Scalding fluid and steam can be blown out under pres-
sure it cap is taken off too soon.
INSPECTION
Immerse temperature sensing part of ECT sensor in water (or ice)
and measure resistance between sensor terminals while heating
water gradually.
If measured resistance doesn’t show such characteristic as shown
in left figure, replace ECT sensor.
(
) for reference
INSTALLATION
Reverse removal procedure noting the following.
Clean mating surfaces of ECT sensor and water outlet pipe.
Check O-ring for damage and replace if necessary.
Tighten ECT sensor to specified torque.
Tightening Torque
(a): 12 N·m (1.2 kg-m, 9.0 lb-ft)
Connect coupler to ECT sensor securely.
Refill coolant referring to Section 6B.
ENGIINE AND EMISSION CONTROL SYSTEM
6E1-67