62 2 ENGINE AND VEHICLE FEATURES
Coolant Temperature Compensation (Engine
Over Temperature Protection System)
Figure 50 Coolant Temperature Compensation
Coolant temperature compensation reduces fuel
delivery if the engine coolant temperature is above
the cooling system specifications.
Before standard engine w arning or optional
warning/protection systems engage, the reduction
in fuel delivery begins when the engine coolant
temperature reaches approximately 107 °C (225 °F).
A rapid reduction of 15 percent is achieved when
engine coolant temperature reaches approximately
110°C(230°F).
NOTE: Coolant temperature compensation is
disabled in emergency vehicles that require 100
percent power on demand.
Engine Crank Inhibit (ECI)
ECI will not allow the starting motor to crank when
the engine is running or the automatic transmission
is in gear. ECI is an optional system for vehicles with
manual transmissions.
For additional information, see “ECI System” in
Section7(page366).
Change Engine Oil Interval Message
The change engine oil interval message can be
programmed with the EST for mileage, hours, or
amount of fuel used. The change oil message
timer can be reset using th e CRUISE ON and
RESUME/ACCEL switches or ES T.
Optional Features
Road Speed Limiting
Road spee d limiting limits th e speed to the m a ximum
vehicle speed programmed by the customer.
Cruise Control
TheECMcontrolsthecruisecontr
ol feature. The
cruise control system functions
similarly for all
electronic engines. Maximum
and minimum allowable
cruise control speeds will v
ary b ased on model. To
operate cruise control, se
e appropriate truck model
Operator’s Manual.
Engine Fuel Pressure (EFP) Monitor
The EFP monitors fuel pressure and indicates when
the fuel filter needs to be serviced. For additional
information, see “EFP Se ns or” in Section 7 (page
406).
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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