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{CAUTION:

You can be burned if you spill coolant on hot

engine parts. Coolant contains ethylene glycol

and it will burn if the engine parts are hot

enough. Do not spill coolant on a hot engine.

3. After the engine cools, open the coolant air bleed

valves.

There are two bleed valves. One is located on the

thermostat housing. The other is located on the

thermostat bypass tube.

4. Fill the radiator with the proper DEX-COOL

coolant mixture, up to the base of the ﬁller

neck. See

Engine Coolant on page 5-21

for more

information about the proper coolant mixture.

If you see a stream of coolant coming from an air

bleed valve, close the valve. Otherwise, close

the valves after the radiator is ﬁlled.

5. Rinse or wipe any spilled coolant from the engine

and the compartment.

Housing

Bypass Tube

5-31

Buick Rendezvous 2003 User Manual

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