engine PONTIAC GRAND-PRIX 1993 Workshop Manual

A Using a match near a battery I
I can cause battery ga
explode. People have been nurI
doing this, and some have been
blinded. Use a flashlight
if vou nccL
more light.
Be sure the
ua enougn
you accidentally get it in your e
or
on your skin, flush the place
with water and get medical help
immediately.
? ih. w-m I
5. Check that the jumper cables don’t
have loose or missing insulation. If
they do, you could get a shock. The
vehicles could be damaged, too.
engine part. Don’t connect
(+) to (-) or
you’ll get a short that would damage the
battery and maybe other parts, too.
Before you
connect the cables, here are
water.
You doll L IIGW to addware some things you should know. Positive
to the Delco Freedom@ battery
(+) will go to positive (+) and negative
installed in every new
GM vehicle (-) will go to negative (-) or a metal
But if a battery has filler caps, b
sure the right amount of fluid is
there.
If it is low,-add water to t
care of that first.
If you don’t,
explosive gas could be present.
Batte-ry fluid contains acid that
burn
you. Don’t get it on you. I
PA/ ITION I
A
Fans or other moving engine
parts can injure you badly.
Keep your hands away from
moving parts once the engines are
runnin-
6. Connect the red positive (+) cable to
the positive
(+) terminal of the
vehicle with the dead battery. Use a
remote positive
(+) terminal if the
vehicle has one.
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Problems on the Road
hl’l~ sbrfing (CONT.)
7. Don’t let the other end touch metal.
Connect it to the positive
(+)
terminal of the good battery. Use a
remote positive
(+) terminal if the
vehicle has one.
8. Now connect the black negative
(-) cable to the good battery’s
negative
(-) terminal.
Don’t let the other end touch anything
until the next step. The other end of the
negative cable
doesn’t go to the dead
battery. It goes to a heavy unpainted
metal part on the engine
of the vehicle
with the dead battery.
188
9. Attach the cable at least 18 inches
(45 crn) away from the dead battery,
but not near engine parts that move.
The electrical connection is just as
good there, but the chance of sparks
getting back to the battery is much
less.
10. Now start the vehicle with the good
battery and run the engine for a
while.
1 1. Try to start the vehicle with the
dead battery.
If it won’t start after a few tries, it
probably needs service.
12. Remove the cables in reverse order
to prevent electrical shorting. Tale
care that they don’t touch each
other or any metal.
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Engine Overheating
You will find a coolant temperature
gage or the warning light about
a hot
engine
on your Pontiac's instrument
panel.
You may also find a low coolant
warning light
on your Pontiac's
instrument panel.
r
If Steam is Coming from Your Engine:
L Steam from an overheated
- b engine can burn you badly,
even if you just open the hood. Stay
away from the engine if you see or
hear steam coming from it. Just
turn it off and get everyone away
from the vehicle until it cools down.
Wait until there is no sign of steam
DP eoolant before opening the hood.
If you keep driving when your
engine is overheated, the liquids in
it can catch fire. YOU or others
could be badly burned. Stop your
engine if it overheats, and get out of
the vehicle until the engine is COOL
1
If No Steam is Coming from Your
Engine:
If you get the overheat warning but see
or hear no steam, the problem may not
be too serious. Sometimes the engine
can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high speed driving.
Idle for long periods in traffic.
Tow a trailer.
-
!
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Problems on the Road
Engine Overheafing ICONT.)
If you get the overheat warning with no
sign
of steam, try this for a minute or
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the
SO:
highest fan speed and open the
window as necessary.
3. Try to keep your engine under load
(in a drive gear where the engine
runs slower).
If you no longer have the overheat
warning,
you can drive. Just to be safe,
drive slower for about ten minutes. If
the warning doesn’t come back
on, you
can drive normally.
If the warning continues, pull over, If
there’s still
no sign of steam, you can
idle
the engine for two or three minutes
while you’re parked, to
see if the
warning
stops. But then, if you still
have the warning,
TURN OFF THE
ENGINEANDGETEVERYONEOUT
OF THE IrEp3[1CLE until it cools down.
You may decide not to lift the hood but
to get servioe
help right away.
a
An electric fan under the
L L hood can start up even when
the engine
is not running and can
injure you. Keep hands, clothing
and tools away from any
underhood electric fan. I
stop, and park your vehicle right away. I I
Cooling System
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(B) Radiator pressure cap
(C) Electric engine fan
If the coolant inside the coolant
recovery tank is boiling, don’t do
anything else until it cools down.
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The coolant level should be at or above
the
COLD mark. If it isn’t, you may
have a leak in the radiator hoses, heater
hoses, radiator, water pump or
somewhere else in the cooling system.
~ CAUTION
A
Heater and radiator hoses,
and other
engine parts, can
be very hot. Don’t touch them. If
you do, you can be burned.
Don’$ run the engine if there is a
leak. If you run the engine, it could
lose all coolant. That could cause
an engine fire, and you could be
burned. Get any leak fixed before
I vou drive the vehicle.
If there seems to be no leak, check to
see if the electric engine fan is running.
If the engine is overheating, the fan
should be running. If it isn’t, your
vehicle needs service.
How to Add Coolant to the Coolant
Recovery Tank:
If you haven’t found a problem yet, but
the coolant level isn’t at or above
COLD, add a 50/50 mixture of clean
water (preferably distilled) and a proper
antifreeze at the coolant recovery tank.
(See the
Index under Engine Coolant
for more information about the proper
coolant mix.)
A
Adding only plain water to
your cooling system
can be
dangerous. Plain water,
or some I
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 a proper antifreeze.
cold weather, water can free-
d crack the engine, radiatnr
ater core and other parts.
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I
Problems on the Road
You can be burned ifp~
l spill coolant on hot engine
parts. Coolant contains ethylene
glycol
and it will bum if the engine
parts are hot enough. Don't spill
coolant on a hat engine.
When the coolant in the coolant
recovery tank
is at or above COLD,
start your vehicle.
If the overheat warning continues,
there's one more
thing you can try. You
can add the proper coolant mix directly
to
the radiator, but be sure the cooling
system is cool before you do it.
'I 96
A Steam and scalding liquids
L from a hot cooling system dm
b.,,v out and burn you badly. They
are under pressure, and if you turn
the radiator pressure cap-even a
little-they can come out at high
speed. Never turn the pressure cap
when the cooling system, including
the radiator pressure cap, is hot.
Wait for the cooling system and
radiator pressure cap tu cool if you
ever have to turn the pressure-cap.
How to Add Coolant to the Radiator:
Your engine has a specific radiator
fill procedure. Failure
to follow the
procedure
could cause your engine
to overheat and be severely
damaged.
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1. You can remove the radiator pressure
cap when the cooling system,
including the radiator pressure cap
and upper radiator hose, is
no longer
hot. Turn the pressure cap slowly to
the left 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,
but now push down as you turn it.
Remove
the pressure cap.
I CAUTION
I A You can be burned if you
spill
coolant on hot engine
pa La. Coolant contains ethylene
glycol and it will burn if the engine
parts
are hot enough. Don’t spill
coolant on a hot engine.
3. After the engine cools, open the
coolant air bleed valve or valves.
3.1L V6 (VIN Code T): There are
two bleed valves. They
are located on
the thermostat housing and the
thermostat bypass tube.
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Problems on the Road
I I
~
I..
€ngh Overheating (cow.)
3.4L V6 (VIN Code X): There are
two bleed valves. They are located on
the thermostat housing and the
heater inlet pipe.
1 918
4. Fill the radiator with the proper mix,
up to the base of the filler neck.
If you see a stream of coolant coming
from an air bleed valve, close the valve.
Otherwise, close the valve(s) after the
radiator is filled.
5. Rinse or wipe any spilled coolant
from the engine compartment.
6. Then fill the coolant recovery tank to
the
COLD mark.
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7. Put the cap back on the coolant 8. Start the engine and let it run until
recovery tank, but leave the radiator
you can feel the upper radiator hose
pressure cap off. getting hot.
Watch out for the engine
fans.
9. By this time the coolant level inside
the radiator filler neck
may be lower.
If the level is lower, add more of the
proper
mix through the filler neck
until the level reaches the base of the
filler neck.
10. Then replace the pressure cap. Be
sure the arrows
on the pressure cap ~
line up like this
11. Check the coolant recovery tank.
The coolant level should be at
HOT
when the engine is hot and at
COLD when the engine is cold.
ISS...
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I I
CAUTION
(Continued)
1. Set the parking brake firmly.
2. Put the shift lever in P (Park)
3. Shift a manual transaxle to
1 (First) or R (Reverse).
4. Turn off the engine.
To be even more certain the vehicle
won’t move, you can put chocks at
the front and rear of the tire farthest
away from the one being changed.
That would be the tire on the other
side of the vehicle, at the opposite
end.
I
P====
The following steps will tell you how to
use the jack and change
a tire.
The equipment you’ll need is
in the
trunk.
1. Pull the carpeting from the floor of
the trunk.
2. Turn the center retainer bolt on the
compact spare tire housing
countercloclwise
to remove it, then
lift the tire cover.
3. Turn the wheel wrench retainer nut
located under the tire cover
counterclockwise to remove the
wheel wrench.
201
U
8..
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