Detroit Diesel MBE 900 Operator's Manual page 132

Problem—The Engine Cranks, But Won't Start
Cause
The batteries are damaged or weak.
The cranking speed is not set correctly.
No intake air preheater is installed,
and it is too cold to start without one.
The intake air preheater is
malfunctioning.
The camshaft position sensor (CMP)
and/or the crank angle position sensor
are out of adjustment.
The camshaft position sensor (CMP)
and/or the crank angle position sensor
are damaged.
There is air in the fuel system.
The air filter is clogged.
The fuel filter is clogged.
The exhaust brake valve is
malfunctioning.
The valves are not adjusted properly.
There are other problems in the fuel
system.
Coolant level is too low.
All information subject to change without notice. (Rev. 04/08)
DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION
MBE 900 ENGINE 2007 OPERATOR'S GUIDE
Test the batteries. Replace them, if
needed.
Bring the vehicle to an authorized
repair facility for service.
Install an intake air preheater.
Check the intake air preheater, and
replace it, if necessary.
Push both sensors into their holes as
far as they will go. If this does not
solve the problem, Bring the vehicle to
an authorized repair facility for service.
Bring the vehicle to an authorized
repair facility for service.
Check the fuel lines for leaks. Prime
the fuel system and start the engine
according to the instructions in the
"How to Replace Fuel Filter".
Clean or replace the air filter.
Replace the filter element.
Have an authorized repair facility
check the operation of the valve.
Check the valve lash.
Bring the vehicle to an authorized
repair facility for service.
Check for leaks, add coolant to correct
level.
Remedy
121