Page 233 of 402
Downloaded from www.Manualslib.com manuals search engine 9. Shut the engine off and replace the pressure cap.
Be sure the arrows on the cap line up like this. 10. Then fill the coolant recovery tank to the
proper level.
For a complete drain,
flush and refill, see your Chevrolet
dealer or a Chevrolet Service Manual.
To purchase a
service manual, see “Service and Owner Publications”
in the Index.
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Page 257 of 402

Downloaded from www.Manualslib.com manuals search engine Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See “Cleaning the
Outside
of Your Chevrolet” in the Index.
When you
put the cap back on, turn it to the right until
you hear at least three clicks. Make sure you fully install
the cap. The diagnostic system can determine if the fuel
cap has been left off
or improperly installed. This would
allow fuel to evaporate into the atmosphere. See
“Malfunction Indicator Lamp” in the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you.
If you get
the wrong type, it may not
fit and your fuel tank
and emissions system might be damaged.
Checking Things Under the Hood
I A CAUTIC 1: I
-
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
Things that burn can get on hot engine parts and
start
a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto
a hot engine.
6-6
Page 259 of 402
Downloaded from www.Manualslib.com manuals search engine When you open the hood of the 3800 L36 (Code K) you'll see:
A. Engine Coolant Reservoir
B. Battery
C. Oil Fill Cap
D. Automatic Transmission
Dipstick (Option)
E. Engine Fan
F. Windshield Washer Reservoir
G. Power Steering Reservoir
H. Engine Oil Dipstick
I. Brake Fluid Reservoir
J. Clutch Fluid Reservoir
K. Air Cleaner
(if equipped)
6-8
Page 260 of 402
Downloaded from www.Manualslib.com manuals search engine When you open the hood of the 5.7L LT1 (Code P) you'll "ee:
A. Engine Coolant Reservoir
B. Power Steering Reservoir
C. Engine Oil Dipstick
D. Battery
.. .
E. Engine Oil Fill Cap
F. Automatic Transmission
Dipstick (Option)
G. Fan
H. Windshield Washer Reservoir
I. Brake Fluid Reservoir
J. Clutch Fluid Reservoir (if equipped)
K. Air Cleaner
6-9
Page 277 of 402

Downloaded from www.Manualslib.com manuals search engine What to Use
Standard Differential
Use Axle Lubricant (GM Part No. 1052271) or
SAE 80W-90 GL-5 gear lubricant.
Limited-Slip Differential
To add lubricant when the level is low, use Axle
Lubricant (GM
Part No. 12345977). To completely refill
after draining, add 2 ounces (59
ml) of Limited-Slip
Differential Lubricant Additive (GM
Part No. 1052358).
Then fill to the bottom
of the filler plug hole with Axle
Lubricant (GM Part
No. 12345977).
Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL
TM (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain in your
vehicle for
5 years or 100,000 miles (166 000 km),
whichever occurs first.
The following explains your cooling system and how to add coolant when it is low. If you have a problem with
engine overheating
or if you need to add coolant to your
radiator, see “Engine Overheating” in the Index.
A 50/50 mixture of water and the proper coolant for
your Chevrolet will:
Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 “F (1 29°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they should.
NOTICE:
When adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If silicated coolant is added to the system,
premature engine, heater core
or radiator
corrosion may result.
In addition, the engine
coolant
will require change sooner -- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first.
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I b
Page 278 of 402

Downloaded from www.Manualslib.com manuals search engine What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL TM (orange-colored,
silicate-free) antifreeze that meets
GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use a
50/50 mix of clean
water and
DEX-COOL TM (orange-colored,
silicate-free) antifreeze.
1
NOTICE:
I
If you use an improper coolant mix, your
engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
6-27
Page 279 of 402
Downloaded from www.Manualslib.com manuals search engine Checking Coolant
When your engine is cold, check the dipstick on the cap
of the coolant recovery tank. The coolant level should
be at
COLD, or a little higher. When your engine is
warm, the level on the dipstick should be
up to HOT, or
a little higher.
1
If this light comes on, it
means you’re low on
5.7L LTl Engine Only
Adding Coolant to e Recovery Tank
If you need more coolant, add the proper mix at the
coolant recovery tank, but only when your engine is
cool.
If the tank is very low or empty, also add coolant
to the radiator. See “Engine Overheating” in the Index
for information.
6-28
Page 280 of 402
Downloaded from www.Manualslib.com manuals search engine Turning the radiator 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 pressure cap -- even a
little
-- when the engine and radiator are hot.
Add coolant mix at the recovery tank, but be careful not
to spill it.
' 4 CAUTIOh;
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. Don't spill coolant on a hot engine.
Radiator Pressure Cap (All Engines)
NOTICE: ~~ -
Your radiator cap is an 18 psi (124 kPa)
pressure-type
cap and must be tightly installed to
prevent coolant
loss and possible engine damage
from overheating. Be sure the arrows on the cap
line
up with the overflow tube on the radiator
filler neck.
When you replace your radiator pressure cap, an AC@
cap is recommended.
6-29