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