engine PONTIAC PONTIAC 1996 Manual PDF

Operating the engine with the air cleaner off can
cause you or others to
be burned. The air cleaner
not only cleans the air, it stops flame if the,engine
backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it
off, and be careful working on the engine with
the air cleaner off.
I NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every
50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:
0 In heavy city traffic where the outside temperature
0 In hilly or mountainous terrain.
regularly reaches
90°F (32” C) or higher.
0 When doing
frequent trailer towing.
Uses such as found in taxi, police or delivery service.
If
YOU do not use your vehicle under any of these
conditions, the fluid
and filter do not require changing.
See “Scheduled Maintenance Services” in the Index.
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Because this operation can be a little difficult, you
may choose
to have this done at your Pontiac dealership
Service Department.
If you do it yourself, be sure to follow all the instructions
here,
or you could get a false reading on the dipstick.
Too much or too little fluid can damage your
transaxle,
Too much can mean that some of the
fluid could come out and fall on hot engine parts
or exhaust system parts, starting a fire.
Be sure to
get an accurate reading if you check your
transaxle fluid.
Wait at least 30 minutes before checking the transaxle
fluid level if you have been driving:
When outside temperatures are above 90°F (32" C).
At high speed for quite a while.
In heavy traffic -- especially in hot weather.
0 While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which is
180°F to 200°F
(82°C to 93°C).
Get the vehicle warmed up by driving about
15 miles
(24 km) when outside temperatures are above 50°F
(10°C). If it's colder than 50°F (lO°C), you may have
to drive longer.
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Checking the Fluid Level
Park your vehcle on a level place. Keep the
0 With the parlung brake applied, place the shift lever
engine
running.
in
PARK (P).
lever through each gear range, pausing for about
three seconds in each range. Then, position the shift
lever in
PARK (P).
With your foot on the brake pedal, move the shift
0 Let the engine run at idle for three to five minutes.
Then, without shutting off the engine, follow these steps:
3.1L L82 Engine
3.4L LQ 1 Engine 1.
The transaxle fluid dipstick handle is the red loop
near the back of the engine. Pull out the dipstick and
wipe it with a clean rag or paper towel.
then pull it back out again.
2. Push it back in all the way, wait three seconds and
3.1L
L82 Engine 3.4L LQ 1 Engine
3. Check both sides of the dipstick, and read the
lower level. The fluid level must be in the
cross-hatched area.
4.
If the fluid level is in the acceptable range, push the
dipstick back in all the way.
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How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transaxle fluid to use. See “Recommended
Fluids
and Lubricants” in the Index.
If the fluid level is low, add only enough of the proper
fluid to bring the level into the cross-hatched area on
the dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough fluid at the
It doesn’t take much fluid, generally less than a pint
(0.5 L). Don’t oveflll. We recommend you use only
fluid /labeled DEXRON@-HI, because fluid with that
label
is made especially for your automatic transaxle.
Damage caused by fluid other than
DEXRON-111 is
not covered by your new vehicle warranty.
0 After adding fluid, recheck the fluid level as
0 When the correct fluid level is obtained, push the
dipstick hole to bring
it to the
proper level.
described under “How to Check.”
dipstick
back in all the way.
Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL (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 Pontiac will:
0
0
0
0
0
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F (129°C).
Protect against rust
and corrosion.
Help keep the proper engine temperature.
Let the warning lights lights and gages work as
they should.
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NOTICE:
When adding coolant it is important that you use
DEX-COOL
TM (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.
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.
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NOTICE:
If yos we 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.
I 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.
Checking Coolant
When your engine is cold, the coolant level should be at
the
COLD mqk or a little higher. When your engine is
warm, the level should be up to the HOT mark or a
little higher.
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If this light comes on,
it means you’re low on
engine coolant.
LOW
COOLANT
L
Adding Coolant
A CAUTION:
lhrning the radiator pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
With the coolant recovery tank, you will almost
never have.to add coolant
at the radiator.
Never turn the radiator pressure cap
-- even a
little -- when the engine and radiator are hot.
If you need more coolant, add the proper mix at the Add
coolant mix at the recovery tank, but be careful not
coolant recovery tank. to
spill it.
If the coolant recovery tank is completely empty, add
coolant to the radiator. (See “Engine Overheating”
in the Index.) ’ A 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.
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Radiator Pressure Cap Power Steering Fluid
NOTICE:
Your radiator 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.
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.
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 AC'thermostat
is recommended.
3.1L L82 Engine 3.4L LQ1 Engine
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless
you suspect there is a leak in the system or
you hear an unusual noise.
A fluid loss in this system
could indicate
a problem. Have the system inspected
and repaired.
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How To Check Power Steering Fluid
When the engine compartment is cool, unscrew the cap
and wipe the dipstick with a clean rag. Replace the cap
and completely tighten it. Then remove the cap again
and
look at the fluid level on the dipstick.
When the engine compartment is hot, the
level should be at the
H
mark. When it’s cold, the
level should be at the
C
mark. If the fluid is at the
ADD mark, you should
add fluid.
What to Use
Refer to the Maintenance Schedule to determine what
kind of fluid to use. See “Recommended Fluids and
Lubricants”
in the Index. Always use the proper fluid.
Failure to use the proper fluid can cause leaks and
damage hoses
and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use. If you will be
operating your vehicle in an area where the temperature
may fall below..freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
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There are only two reasons why the brake fluid level in the
reservoir might go down. The first is that the brake fluid
goes down to an acceptable level during normal brake
lining wear. When new linings are put
in, the fluid level
goes back
up. The other reason is that fluid is leaking out
of the brake system. If it is, you should have your brake
system fixed, since
a leak means that sooner or later your
brakes
won’t work well, or won’t work at all.
So, it isn’t a good idea to “top off’ your brake fluid.
Adding brake fluid won’t correct a leak. If you add ‘fluid
when your linings are worn, then you’ll have too much
fluid when you get new brake linings. You should add
(or remove) brake fluid, as necessary,
only when work is
done on the brake hydraulic system.
’ A CAUT-ON:
I
- I
If you have too much brake fluid, it can spill on
the engine. The fluid will burn if the engine is
hot enough. You or others could be burned, and your vehicle could be damaged. Add brake
fluid only when work is done on the brake
hydraulic system.
When your brake fluid falls to a low level, your brake
warning light will come on. See “Brake System
Warning
Light” in the Index.
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