cooling PONTIAC GRAND AM 2002 User Guide

5-14
If no coolant is visible in the surge tank, add coolant
as follows:
CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They are
under pressure, and if you turn the coolant surge
tank pressure cap
-- even a little -- they can come
out at high speed. Never turn the cap when the
cooling system, including the coolant surge tank
pressure cap, is hot. Wait for the cooling system
and coolant surge tank pressure cap to cool if you
ever have to turn the pressure cap.

5-15
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the proper
coolant mixture will. Your vehicle's coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
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 mixture of clean, drinkable water
and DEX
-COOL
coolant.
NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So use the recommended coolant.
CAUTION:
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.

5-16
1. Park the vehicle on
a level surface.
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 (left) 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.

5-17
3. Then fill the coolant surge tank with the proper
mixture, to the hash mark on the label. Wait about
five minutes, then check to see if the level is below
the hash mark. If the level is below the hash mark,
add additional coolant to bring the level up to the
hash mark. Repeat this procedure until the level
remains constant at the hash mark for at least
five minutes.
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 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.

6-14
3400 V6 Engine
The engine oil dipstick handle is yellow. The dipstick on
the 2.2L L4 ECOTEC engine is located near the front of
the engine compartment on the passenger's side of the
vehicle. The dipstick on the 3400 V6 engine is located
at the front of the engine, behind the cooling fan. See
ªEngine Compartment Overviewº in the Index for
more information on location.Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil dipstick
might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.2.2L L4 ECOTEC Engine

6-24
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL extended life coolant.
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating, see ªEngine Overheatingº
in the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

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 only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL 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. Damage caused by the
use of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.

6-25 What to Use
Use a mixture of one-half clean, drinkable water and
one
-half DEX-COOL
coolant which won't damage
aluminum parts. If you use this coolant mixture, you
don't need to add anything else.
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the proper
coolant mixture will. Your vehicle's coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
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 mixture of clean, drinkable water
and DEX
-COOL
coolant.
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn't be covered by your
warranty. Too much water in the mixture 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.

6-46 Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the wheel,
wheel bolts and wheel nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum
wheels, which can sometimes be repaired). See your
dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load
-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
CAUTION:
Using the wrong replacement wheels, wheel
bolts or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have a
collision in which you or others could be injured.
Always use the correct wheel, wheel bolts and
wheel nuts for replacement.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See ªChanging a Flat Tireº in the Index for
more information.

6-61
Engine Compartment Fuse Block
The engine compartment fuse block is located near the
battery in the engine compartment on the driver's side of
the vehicle.
Maxifuses Usage
1 Ignition Switch
2 Right Electrical Center
-Fog
Lamps, Radio, Body Function
Control Module, Interior Lamps Maxifuses Usage
3 Left Electrical Center
-Stop
Lamps, Hazard Lamps, Body
Function Control Module, Cluster,
Climate Control System
4 Anti
-Lock Brakes
5 Ignition Switch
6 Not Used
7 Left Electrical Center
-Power
Seats, Power Mirrors, Door Locks,
Trunk Release, Audio Amplifier,
Remote Lock Control
8 Cooling Fan #1
Mini Relays Usage
9 Rear Defog
10 Not Used
11 Not Used
12 Cooling Fan #1
13 HVAC Blower (Climate Control)
14 Cooling Fan #2
15 Cooling Fan

6-63
Minifuses Usage
49 Generator
50 Right Headlamp
51 Left Headlamp
52 Cooling Fan #2
53 HVAC Blower (Climate Control )
54 Not Used
55 Cooling Fan #2 Ground
56 Fuse Puller for Mini Fuses
57 Not Used
Replacement Bulbs
Back-Up Lamps 3156. . . . . . . . . . . . . . . . . . . . . . . . .
Center High
-Mounted Stoplamp 912. . . . . . . . . . . . .
Turn Signal lamps 3156. . . . . . . . . . . . . . . . . . . . . . .
Stop/Taillamps 3157. . . . . . . . . . . . . . . . . . . . . . . . . .
Parking/Turn Signal Lamps 3157NA or 3157A. . . . .
Sidemarker Lamps 194NA. . . . . . . . . . . . . . . . . . . . . .
For any bulb not listed here contact your dealer.
Capacities and Specifications
Capacities
All capacities are approximate. When adding, be sure
to fill to the appropriate level or as recommended in
this manual.
Engine Oil with Filter
2.2L L4
Engine 5.8 quarts (5.5 L). . . . . . . . . . . . . .
3400 V6 Engine 4.5 quarts (4.3 L). . . . . . . . . . . . . . .
Automatic Transaxle
Complete Overhaul 9.5 quarts (9.0 L). . . . . . . . . . . .
Manual Transaxle
Complete Overhaul 1.8 quarts (1.7 L). . . . . . . . . . . .
Cooling System
2.2L L4
Engine 8.6 quarts (8.2 L). . . . . . . . . . . . . .
3400 V6 Engine 13.6 quarts (12.9 L). . . . . . . . . . . . .
Fuel Tank14.1 U.S. gallons (53.4 L) . . . . . . . . . . . .
Tire Pressures, SizesSee Tire
-Loading . . . . . . . . . . .
Information label on the rear driver's
side passenger door.