Surge Tank Pressure Cap; Engine Coolant - Pontiac 1999 Sunfire Owner's Manual

How to Check
You do not need to check the fluid level unless you
suspect a clutch problem. To check the fluid level, take
the cap off. If the fluid reaches the step inside the
reservoir, the fluid level is correct.

Surge Tank Pressure Cap

NOTICE:
Your 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.
When you replace your surge tank pressure cap, a GM
cap is recommended.
Thermostat
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.
When you replace your thermostat, an ACDelco
thermostat is recommended.

Engine Coolant

The cooling system in your vehicle is filled with
-
DEX COOL
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
-
DEX COOL
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see "Engine Overheating" in
the Index.
A 50/50 mixture of clean, drinkable water and
-
DEX COOL
D
Give freezing protection down to
D
Give boiling protection up to 265
D
Protect against rust and corrosion.
D
Help keep the proper engine temperature.
D
Let the warning lights and gages work as
they should.
R
R
engine coolant. This coolant is designed
R
extended life coolant.
R
coolant will:
-
34
_
F (129
yellowblue
_ _
-
F ( 37 C).
_
C).
6-25