ENGINE ELECTRICAL 303
Sensor Identification
For a more detailed description of the electrical
sensors, see (Engine and Vehicle Sensors, page 47)
in the “Engine Systems” section in this manual.
Figure 438 Camshaft Position (CMP) sensor
The CMP sensor is a magnetic type sensor. It
responds to a rotating actuator positioned on the
camshaft gear. The CMP sensor is installed in the
front cover, above and to the right of the water pump
pulley.
NOTE: This short CMP sensor, used with
International® DT 466, DT 570, and HT 570 diesel
engines, is the Crankshaft Position (CKP) sensor
used with other International® diesel engines.
Figure 439 Crankshaft Position (CKP) sensor
The CKP sensor is a magnetic pickup sensor. The
CKP sensor is installed on the top left of the flywheel
housing.
NOTE: This long CKP sensor, used with
International® DT 466, DT 570, and HT 570
diesel engines, is the Camshaft Position (CMP)
sensor used with other International® diesel engines.
Figure 440 Engine Oil Temperature (EOT) sen
sor
and Engine Coolant Temperature (ECT) sens
or
The EOT sensor is a thermistor type sensor.
The EOT
sensor is installed in the rear of the fron
t cover, left of
the high-pressure oil pump assembly
.
The ECT sensor is a thermistor type se
nsor. The
ECT sensor is installed in the water s
upply housing
(Freon® compressor bracket), left
of the flat idler
pulley assembly, as viewed from th
efrontofthe
engine.
Figure 441 Manifold Absolute Temperature
(MAT) sensor
TheMATsensorisathermistortypesensor. TheMAT
sensor is installed to the right of the MAP sensor in the
intake manifold.
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.