Chevrolet 2010 Cobalt Coupe Automobile User Manual


 
If coolant is needed, add the proper DEX-COOL
®
coolant mixture at the coolant surge tank.
1. You can remove the coolant surge tank pressure
cap when the cooling system, including the coolant
surge tank pressure cap and upper radiator hose,
is no longer hot. Turn the pressure cap slowly
counterclockwise about two or two and one-half
turns. If you hear a hiss, wait for that to stop.
This will allow any pressure still left to be vented
out the discharge hose.
2. Then keep turning the
pressure cap slowly,
and remove it.
3. Fill the coolant surge tank with the proper mixture,
to the COLD FILL line on the tank. Wait about
five minutes, then check to see if the level is below
the COLD FILL line. If the level is below the line,
add additional coolant to bring the level up to the
line. Repeat this procedure until the level remains
constant at the COLD FILL line for at least
five minutes.
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