1998 CADILLAC CATERA radiator cap

Downloaded from www.Manualslib.com manuals search engine 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 until it first stops. (Don’t press
down while turning the pressure cap.)
If you hear a hiss, wait for that to stop. A hiss means
there is still some pressure left.
2. Then keep turning the pressure cap slowly, and
remove it.
5-18

Downloaded from www.Manualslib.com manuals search engine 3. Then fill the coolant surge tank with the proper
mixture, up to the KALTKOLD line (seam). 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 fans.
By this time, the coolant level inside the coolant
surge tank may
be lower. If the level is lower, add
more
of the proper mixture to the coolant surge tank
until the level reaches the KALTKOLD line (seam).

Downloaded from www.Manualslib.com manuals search engine Checking Coolant
The surge tank is located behind the air cleaner on the
passenger’s side
of the engine.
The cooling system when hot is under a lot
of pressure.
If the low coolant warning light on the instrument panel
appears, you will need to add coolant.
= I
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
Never turn the surge tank pressure cap
-- even a
little
-- when the engine and radiator are hot.
When your engine is cold, the coolant level should be at
the KALTKOLD line (seam).
1
If the light comes on, it
means you’re low on
engine coolant.
]I I I
For more information, see “Low Coolant Light” in
the Index.
6-22
.- - ------

Downloaded from www.Manualslib.com manuals search engine Adding Coolant
If you need more coolant, add the proper Dm-COOL@
coolant mixture at the surge tank, but only when the
engine is cool.
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
Surge Tank Pressure Cap
NOTICE:
The surge tank cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating.
and it will burn if the engine parts are hot
GM cap is recommended. enough. Don’t spill coolant on a hot engine.
If the surge tank pressure cap needs to be replaced, a
Thermostat
When replacing the pressure cap, make sure it is tight.
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
If the thermostat needs to be replaced, a GM thermostat
is recommended.