Coolant Loss; Intermittent Issues - Detroit Diesel MBE 900 Technician Manual

PRELIMINARY
Is the IMP Sensor/TBS working correctly?
1.3.6

COOLANT LOSS

The basic questions to ask for Coolant Loss are:
Has the oil level risen? (If so, it would suggest coolant in the oil and a head gasket failure.)
Have you noticed any coolant leaks or coolant puddles under the vehicle?
How often do you add coolant?
Is the radiator cap on tight and sealing properly?
What type of coolant is being used?
What type of inhibitor is being used?
1.3.7

INTERMITTENT ISSUES

The basic questions to ask with Intermittent Concerns are:
When was the last time the intermittent concern occurred?
Does the Amber Warning Lamp (AWL) come on?
Does the concern only occur in damp or rainy conditions?
Does the concern occur when the vehicle hits a bump or rough road?
Does the engine miss, drop to idle, quit running, or exhibit hard starting?
Is there any pattern related to trip miles or engine temperature?
All information subject to change without notice. (Rev. 5/05)
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MBE EGR TECHNICIAN'S GUIDE
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