SECTION 01: ENGINE
PA1553
3
1. ENGINE
This vehicle is powered by a 6-cylinder, four-
cycle, Detroit Diesel series 60 engine equipped
with an electronic control system (DDEC V).
Two engine displacements are used in the
Series 60 engines: 12.7 and 14.0 liters.
Summary information on the Electronic Control
System is given in this section.
Complete maintenance and repair information
on the engine will be found in the current DDEC
V Service Manual. This maintenance manual
covers engine accessories, controls and related
components.
Procedures for engine removal and installation
are given at the end of this section. The DDEC
system is self-diagnostic. It can identify faulty
components and other engine-related problems
by providing the technician with a diagnostic
code.
Refer to DDEC Troubleshooting Guide
published by Detroit Diesel for more complete
information on diagnosis of components and
system problems.
DDEC V (Detroit Diesel Electronic Control)
controls the timing and quantity of fuel injected
by the electronic unit injectors (EUI). The system
also monitors several engine functions using
electrical sensors, which send electrical signals
to the Electronic Control Module (ECM). The
ECM computes the electrical signals and
determines the correct fuel output and timing for
optimum power, fuel economy and emissions.
The ECM also has the ability to display warnings
or shut down the engine completely (depending
on option selection) in the event of damaging
engine conditions, such as low oil pressure, low
coolant level, or high oil temperature.
Two categories divide system components:
engine-mounted components and engine-
related components.
2. ENGINE-MOUNTED COMPONENTS
FIGURE 1: DETROIT DIESEL SERIES 60 ENGINE (TYPICAL) 01150
Engine-mounted components are as follows:
o Electronic Control Module
o Electronic Unit Injector
o Synchronous Reference Sensor
o Timing Reference Sensor
o Turbo Boost Pressure Sensor
o Coolant Temperature Sensor
o Fuel Temperature Sensor
o Air Temperature Sensor
o Absolute Oil Pressure Sensor
o Oil Temperature Sensor
o Barometric Pressure
o EGR Delta Pressure
o EGR Temperature
o Turbo Speed
o Turbo Compressor Out Temperature
o Turbo Compressor In Temperature