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LIGHTS/ METERS/
SWITCHES
THERMO SENSOR UNIT INSPECTION
Suspend the ECT sensor
in
a
pan
of coolant
(50-
50
mixture) an electric heating element and measure
t he resistance
through
the sensor as the coolant
heats
up.
•
Soak the
ECT
sensor in coolant up to its th reads
with
at least 40 mm
(1.6 in)
f
rom the bottom of
the pan to the bottom
of
the sensor.
•
Keep the
temperat
ure
constant
for 3 minutes
before testi ng. A
sudden
change
of tem
perature
wi
ll
result
i
n incorrect readings. Do not let the
thermom
eter or
ECT
sensor to uch the pan.
The
thermo
sensor
terminal
is
shown in the
ill ustra-
tion.
Replace the sensor
if
it is out of specification by
more than 10% at any temperature
listed.
~
mpera
t
u
re
Resista nce
INSTALLTION
80°C
(68°F)
2.1 -2.6 kO
120°C
(248°F)
0.65- 0.73 kO
Always replace
the
Install
and
tight
en the ECT sensor to
th
e specif ied
sealing
washer with
t
orque.
a
new
one.
20-16
TORQUE:
23 N·m (2.3
kgf·m,
17 lbf·ft)
Connect t he ECT sensor connecto r.
Install
the
throttle body (page 5-67).
Fill
the system and bleed the air
(page
6-6).
ECT SENSOR
THERMO SENSOR TERMINAL
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