2004 Pontiac Sunfire Owner's Manual - Page 259
2004 Pontiac Sunfire Manual
Page 259 highlights
4. With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan. 5. Then replace the pressure cap. Be sure the pressure cap is hand-tight and fully seated. See your dealer, if necessary. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower than the FULL COLD mark, add more of the proper mixture to the coolant surge tank until the level reaches the FULL COLD mark. 5-31
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4. With the coolant surge
tank pressure cap off,
start the engine
and let it run until you
can feel the upper
radiator hose getting
hot. Watch out for
the engine cooling fan.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower than
the FULL COLD mark, add more of the proper
mixture to the coolant surge tank until the
level reaches the FULL COLD mark.
5. Then replace the
pressure cap. Be sure
the pressure cap is
hand-tight and fully
seated. See your
dealer, if necessary.
5-31