5-27
Cooling System (Diesel Engine)
When you decide it’s safe to lift the hood, here’s what
you’ll see:
Caterpillar
R
Diesel Engine
A. Engine Fan
B. Coolant Surge Tank
If the coolant inside the coolant surge tank is boiling,
don’t do anything else until it cools down.
The coolant level should
be at COLD ADD or
higher. If it isn’t, you may
have a leak in the radiator
hoses, heater hoses,
radiator, water pump or
somewhere else in the
cooling system.
Caterpillar
R
Diesel Engine
CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don’t touch them. If you
do, you can be burned.
Don’t run the engine if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
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