INSTALLATION
Reverse removal procedure noting the following.
Clean mating surfaces of IAT sensor (1) and air cleaner outlet
hose (2).
Connect IAT sensor coupler securely.
ECT SENSOR
REMOVAL
1) Disconnect battery negative cable at battery.
2) Drain coolant referring to Section 6B.
3) Disconnect connector from ECT sensor.
4) Remove ECT 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 (a and b) while
heating water gradually.
If measured resistance doesn’t show such characteristic as shown
in left figure, replace ECT sensor.
(
) for reference
TEMPERATURE
RESIST
ANCE
6E1-62
ENGIINE AND EMISSION CONTROL SYSTEM
SH410