TROUBLESHOOTING
Problem—The Engine Is in Emergency Running Mode
(constant speed 1,300 rpm)
Cause
Remedy
The MCM or CPC or sensor(s),
solenoids and other electronic parts
are damaged.
Bring the vehicle to an authorized
repair facility for service.
Problem—The Coolant Temperature Is Above Normal
Cause
Remedy
The coolant level is too low.
Check for coolant leaks, and repair as
needed.
The poly-V belt is loose.
Tighten or replace the poly-V belt.
The coolant temperature gauge and/or
sensor is not reading correctly.
Bring the vehicle to an authorized
repair facility for service.
The radiator is damaged or dirty.
Clean the radiator. Repair or replace
the radiator as necessary.
The water pump is damaged.
Have an authorized repair facility
replace the water pump.
The thermostat is not operating
properly.
Have an authorized repair facility
replace the thermostat.
The fan is not operating properly.
Bring the vehicle to an authorized
repair facility and have the fan hub
checked.
Bring the vehicle to an authorized
repair facility and have the parameter
settings reprogrammed in the MCM
or CPC.
126
All information subject to change without notice.
(Rev. 04/08)
DDC-SVC-MAN-0040 0704
Copyright © 2008 DETROIT DIESEL CORPORATION
Summary of Contents for MBE 900
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