Cooling System (Gas And Duramax Isuzu Engines) - GMC TopKick 2007 Owner's Manual

Cooling System (Gas and
®
DURAMAX /Isuzu Engines)
When you decide it is safe to lift the hood, here is
what you will see:
A. Engine Fan
B. Coolant Surge Tank
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If your vehicle has a Caterpillar
®
see the Caterpillar Diesel Engine Operation and
Maintenance Manual provided with your vehicle.
If the coolant inside the coolant surge tank is
boiling, do not do anything else until it cools down.
The vehicle should be parked on a level surface.
®
diesel engine,
The coolant level should
be at the FULL COLD
mark or higher. If it is
not, you may have a leak
at the pressure cap or
in the radiator hoses,
heater hoses, radiator,
water pump, or
somewhere else in
the cooling system.