TEST OR INSPECTION
EMS FAULT INDICATORS
EMS Coolant Temp Indicator Flashes
DO NOT service cooling system unless engine has been
allowed to cool down. This is a pressurized cooling system and
escaping steam or hot coolant will cause serious burns.
DO NOT remove cooling system radiator cap when engine is
hot. Allow engine to cool down. Failure to follow this warning
may cause serious burns.
Wear effective eye, glove, and skin protection when handling
coolants. Failure to follow this warning may cause injury to
1. Check for flashing coolant
Reduce load and continue to
temperature indicator during
monitor temperature. If indicator
is still flashing, go to test step 2.
If problem still exists shut down
2. Allow engine to idle at 960
RPM for 5-10 minutes to cool
engine and, go to test step 3.
3. Check radiator for debris.
Remove debris. If there is
excessive debris, notify Unit
Maintenance. If no debris is
present, go to test step 4.
4. Check system for leaks.
If leaks are found, notify Unit
Maintenance. If no leaks are
found, go to test step 5.
5. Check coolant level.
If coolant level is okay, go to test
If water pump and fan drive belts
6. Check water pump and fan
drive belts for looseness and/or
are loose and/or damaged, notify
Unit Maintenance. If belts are
okay, go to test step 7.
7. Check engine oil level.
If engine oil is low, fill to correct
still exists, go to test step 8.